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MUSTOFA, INDRA HADI. "ANALISA PROFIL BANDWIDTH JARINGAN COPPER, FIBER OPTIK DAN MIGRASI SERTA LOSS LINK BUDGET DI PT TELKOM KEDIRI." Generation Journal 3, no. 2 (August 30, 2019): 13. http://dx.doi.org/10.29407/gj.v3i2.13342.
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Dalam hal layanan indihome 3P jaringan copper tidak mampu mengirim data internet yang maksimal </= 3 Mbps maka dari itu dimigrasikan ke jaringan fiber optik yang mengirimkan bandwidth sampai >100 Mbps. Rata-rata bandwidth jaringan copper upload 0,62 dan download 3,28 Mbps , serta jaringan fiber optik untuk upload 2,57 Mbps dan upload 11,62 Mbps, serta migrasi upload 7,01Mbps dan download 10,73 Mbps
Attenuation atau redaman jaringan copper upload 16,82 dBm dan download 33,77 dBm serta jaringan fiiber optik atau migrasi redaman upload 2,44dBm dan download -20,34 dBm. Kabel fiber optik dalam pengiriman data melalui gelombang upload 1310 nm , download 1490 nm, streaming 1550 nm dengan loss link budget </= -28 dBm .
Kata Kunci : Copper, Fiber Optik, Migrasi, Bandwidth, Loss Link Budget.
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Purwanto, Heri, Mukhtar Hanafi, and Bambang Pujiarto. "Optimasi Bandwidth Jaringan Internet SMAN 4 Magelang Menggunakan Traffic Shapping Per Connection Queue (PCQ)." Jurnal Komtika 1, no. 1 (June 12, 2017): 5–11. http://dx.doi.org/10.31603/komtika.v1i1.1681.
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SMAN 4 Magelang ialah salah satu sekolah yang membutuhkan internet sebagai salah satu media dalam mencari informasi, akan tetapi bandwidth yang dialokasikan untuk pengguna internet belum diatur dengan baik, sehingga bandwidth yang tersedia belum mampu memenuhi kebutuhan pengguna internet secara optimal. Selain itu, SMAN 4 Magelang memiliki perilaku aktifitas yang berbeda - beda dalam menggunakan internet. Aktivitas penggunaan internet tersebut diantaranya browsing, mailing, chatting, streaming, dan download. Penggunaan internet yang berbeda tersebut membutuhkan pengaturan dalam pembagian bandwith internet agar pengguna internet menerima alokasi bandwidth sesuai dengan kebutuhan penggunaan internet. Pengaturan bandwith untuk kebutuhan internet dilakukan dengan menggunakan Traffic Shapping yang mengatur bandwidth internet untuk pengguna internet sesuai dengan aktivitas penggunaan internet. Traffic Shapping PCQ memastikan bahwa setiap pengguna dalam satu jaringan mendapatkan bandwith yang sama dengan membatasi besar bandwidth per alamat IP pengguna internet sehingga tidak mempengaruhi kecepatan koneksi internet pengguna yang lain. Hasil penelitian ini dapat mengoptimalkan bandwidth internet untuk memenuhi kebutuhan pengguna internet di SMAN 4 Magelang.
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Kurnia, Dian. "RANCANG BANGUN PEMBAGIAN BANWIDTH DAN MONITORING JARINGAN MENGGUNAKAN METODE HTB DAN CACTI PADA JARINGAN INTERNET DI SMAN 1 HAMPARAN PERAK." Computer Engineering, Science and System Journal 3, no. 2 (August 1, 2018): 134. http://dx.doi.org/10.24114/cess.v3i2.10068.
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Pada penelitian sekarang peneliti akan menerapkan pembagian bandwidth secara merata menggunakan metode HTB (Hierarchical Token Bucket) dimana metode ini dapat mengontrol penggunaan bandwidth terhadap link yang diberikan kepada setiap client yang terkoneksi pada jaringan tersebut. HTB memungkinkan penggunaan fisik link single untuk menampilkan multiple link dan untuk mengirimkan jenis traffic yang berbeda pada tampilan link yang berbeda. Dengan kata lain, HTB sangat berguna untuk membatasi rating download dan upload client. Dengan demikian client tidak dapat seenaknya menggunakan semua kapasitas bandwidth. merupakan solusi jaringan grafik lengkap yang dirancang untuk memanfaatkan kekuatan penyimpanan data RRDTool dan fungsi grafik. Cacti menyediakan poller cepat, canggih grafik template, beberapa metode akuisisi data, dan manajemen pengguna fitur luar kotak. Dari hasil penelitian implementasi tanpa limit HTB upload/download = 1,8 Mbps/11Mbps, implementasi menggunakan limit HTB upload/download yang disetting pada queue tree upload/download = 750k/750k dan hasil speedtestnya yaitu upload/download = 708k/714k. cacti dapat memonitoring beberapa situs yang di akses oleh user.
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Natsir, Mochamad. "Analisis Bandwidth Jaringan Internet PLIK dengan Metode Fuzzy Sugeno." Jurnal Telekomunikasi dan Komputer 6, no. 2 (February 27, 2017): 145. http://dx.doi.org/10.22441/incomtech.v6i2.1153.
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Internet is a major part in the development and progress of the nation, especially the Indonesian nation, government issued a policy in Candy Kominfo about PLIK program (District Internet Service Center) which has a strategic role in sustaining and supporting economic activity, strengthening defense and security and the intellectual life of the nation. In the implementation of the program PLIK (District Internet Service Center) have not been targeted in a side benefit, this program should have as a means to meet the needs of information and knowledge, but rather the mere entertainment and more oriented to the business, which is equated with the cafe. This study attempts to retrieve the data in bandwidth usage that will be processed by the method of Fuzzy Sugeno and will generate average maximum bandwidth usage in applications Browsing, Download and Streaming. In determining the average bandwidth usage using Fuzzy Sugeno, From the average bandwidth will be used as a reference in determining the usage restrictions Browsing, Download and Stream with the aim to give control over bandwidth usage for applications Browsing, Download and Streaming.
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Ontoseno, R. Dion Handoyo, Muhammad Nurul Haqqi, and Moch Hatta. "LIMITASI PENGGUNA AKSES INTERNET BERDASARKAN KUOTA WAKTU DAN DATA MENGGUNAKAN PC ROUTER OS MIKROTIK." Teknika: Engineering and Sains Journal 1, no. 2 (December 18, 2017): 125. http://dx.doi.org/10.51804/tesj.v1i2.134.125-130.
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Sejalan dengan kemajuan dan pengembangan Teknologi Informasi dan Komunikasi (TIK) terutama dalam bidang jaringan komputer maka menuntut lembaga pendidikan terutama sekolah, yakni SMK YPM 7 Tarik dalam membangun sebuah Laboratorium TIK yang dilengkapi dengan internet agar dapat diakses oleh guru dan siswa untuk mendapat informasi yang update, cepat dan akurat. Akan tetapi kebebasan dalam memakai internet untuk download dan upload di laboratorium terkadang digunakan siswa untuk hal-hal yang kurang berguna dalam lingkungan pendidikan misalnya men-download film atau lagu. Untuk mengatasi hal tersebut maka diperlukan suatu sistem mangement bandwidth untuk mengatur pemakaian bandwidth di tiap-tiap user laboratorium agar penggunaan bandwidth dapat optimal sesuai dengan porsi dan kebutuhan masing-masing client dengan pembatasan download maupun upload. Salah satu perangkat yang dapat memanajemen bandwidth adalah Router. Personal komputer (PC) router berbasis mikrotik merupakan alternatif untuk menekan biaya pembelian router pabrikan yang harganya masih mahal. Mikrotik sebagai sistem operasi karena memiliki beberapa kelebihan, yaitu lisensinya murah, tidak membutuhkan spesifikasi hardware yang besar, instalasi tidak rumit dan administrasinya mudah.
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Wu, Qing Xiang, Jian Mei Shuai, and Xiao Shuang Lu. "A Multi-Node Co-Allocation Parallel Downloading Algorithm." Applied Mechanics and Materials 58-60 (June 2011): 1590–95. http://dx.doi.org/10.4028/www.scientific.net/amm.58-60.1590.
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In distributed data storage, a particular dataset can reside at multiple locations in order to get high availability .Thus, the dataset can be downloaded in parallel from multiple nodes.Throughput between server and client changes dynamically, so the downloading speed can vary unpredictably. A dynamic parallel downloading algorithm based on measurement of bandwidth and bandwidth prediction is produced in this paper and server caching is adopted in order to improve downloading speed. The algorithm dynamically adjusts downloading of the last block to make parallel downloading from multiple servers end almost simultaneously. With this approach, the download time is reduced and the robustness of the downloading system is improved. Besides, the algorithm not only avoids complicated server selecting mechanism, but also improves load balance of the servers.
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Agarwal, Sachin, Jatinder Pal Singh, and Shruti Dube. "Analysis and Implementation of Gossip-Based P2P Streaming with Distributed Incentive Mechanisms for Peer Cooperation." Advances in Multimedia 2007 (2007): 1–12. http://dx.doi.org/10.1155/2007/84150.
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Peer-to-peer (P2P) systems are becoming a popular means of streaming audio and video content but they are prone to bandwidth starvation if selfish peers do not contribute bandwidth to other peers. We prove that an incentive mechanism can be created for a live streaming P2P protocol while preserving the asymptotic properties of randomized gossip-based streaming. In order to show the utility of our result, we adapt a distributed incentive scheme from P2P file storage literature to the live streaming scenario. We provide simulation results that confirm the ability to achieve a constant download rate (in time, per peer) that is needed for streaming applications on peers. The incentive scheme fairly differentiates peers' download rates according to the amount of useful bandwidth they contribute back to the P2P system, thus creating a powerful quality-of-service incentive for peers to contribute bandwidth to other peers. We propose a functional architecture and protocol format for a gossip-based streaming system with incentive mechanisms, and present evaluation data from a real implementation of a P2P streaming application.
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Patil, Ashish, and N. Shekar V. Shet. "Improving Download Throughput by Saving the Transmission Bandwidth in Vehicular Networks." Arabian Journal for Science and Engineering 44, no. 4 (February 11, 2019): 3967–76. http://dx.doi.org/10.1007/s13369-019-03762-5.
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Sari, Ira Puspita, and Sukri Sukri. "Analisis Penerapan Metode Antrian Hirarchical Token Bucket untuk Management Bandwidth Jaringan Internet." Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) 2, no. 2 (June 30, 2018): 522–29. http://dx.doi.org/10.29207/resti.v2i2.458.
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Internet is one of the needs of the community, especially among education and academics such as universities. The high level of internet users is not comparable with the facilities owned by an agency, this makes the internet network manager in Higher Education feel difficult. The cause of the problem that is always a problem is the speed and internet connection is always disjointed, resulting in the slow loading process data while browsing, both at the time of download and at the time of upload. To make internet users in campus area balanced and stable then need bandwidth management based on traffic usage of internet path better. Bandwidth management that can stabilize traffic lanes and equal bandwidth distribution, it can use bandwidth management by Hierarchical Token Bucket (HTB) method. The calculation result in HTB method testing through file download, the average value obtained by TIPHON category standard for throughtput value index is 2 with "Medium" category, delay parameter index is 4 with "Very Good" category, jitter parameter index is 3 with the "Good" category and the packet loss parameter index is 4 with the "Very Good" category.
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Kurnia, Dian, Suci Ramadhani, and Supiyandi Supiyandi. "RANCANG BANGUN JARINGAN MENGGUNAKAN MODE PPOE CLIENT MIKROTIK DAN METODE PCQ DI JARINGAN INTERNET SMA NEGERI 20 MEDAN." Computer Engineering, Science and System Journal 3, no. 1 (January 31, 2018): 28. http://dx.doi.org/10.24114/cess.v3i1.8484.
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Penelitian ini akan menggunakan modem ADSL yang disetting bridge agar dapat memanfaatkan mikrotik sebagai PPoe client yang dapat terkoneksi langsung ke IP Public dengan username dan password yang diberikan oleh ISP pada setiap modem. Kemudian akan dilanjutkan dengan pembagian bandwidth dengan metode PCQ pada routerboard mikrotik di jaringan wifi lingkungan sekolah SMAN 20 Medan. Pada jaringan wifi tersebut akan terkoneksi beberapa user kemudian akan dimonitoring antrian queue tree yang aktif dengan batasan IP Address yang telah ditentukan pada list firewall dan pengukuran dilakukan dengan berdasarkan parameter kualitas jaringan berupa ukuran data download, delay dan loss bandwidth. Pengumpulan data akan dibantu dengan aplikasi Wireshark. Penelitian ini diharapkan dapat analisis QoS pada trafik sibuk dengan memodelkan persamaan yang cocok untuk performansi jaringan wifi di lingkungan SMAN 20 Medan pada metode management bandwitdth PCQ, sehingga dapat meningkatkan kualitas jaringan internet di SMAN 20 Medan. Apalagi dipermudah dengan trouble shooting jarak jauh.
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Kim, Hwangnam, Woonghee Lee, Hyunsoon Kim, Hwantae Kim, and Jaehyeuk Michael Yang. "Protecting Download Traffic from Upload Traffic over Asymmetric Wireless Links." Wireless Communications and Mobile Computing 2018 (July 12, 2018): 1–15. http://dx.doi.org/10.1155/2018/1283420.
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Many varied mobile device networks have been developed with the advancement of communication and network technologies. Cellular data networks are currently the most widely used, and the number of cellular network subscriptions has increased steadily. Most recent wireless access technologies employ asymmetric uplinks and downlinks because mobile subscribers usually download contents from the Internet. Therefore, most cellular network service providers allocate more bandwidth to downlinks than uplinks for mobile subscribers. However, this asymmetry can have unexpected influence on network performance, particularly TCP performance. When the uplink interface is congested, TCP ACK packets are delayed by TCP data packets on the uplink, causing considerable TCP retransmissions on the downlink channel. Thus, downlink bandwidth cannot be fully utilized, which results in significantly degraded downlink throughput. To resolve this problem, this paper proposes a feedback scheme, network traffic chunk regulator (NCR). We analyzed the aforementioned problem through the empirical study, and we designed and implemented NCR based on the analysis. NCR adaptively controls TCP according to the degree of link usage asymmetry. We evaluate NCR performance through simulations and experiments with real devices. We verify that the proposed scheme allows the downlink traffic to not interfere with the aggressive uplink traffic. Thus, NCR increases total link utilization and aggregated throughput significantly, without imposing additional overhead on base or mobile stations.
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Harahap, Syaiful Zuhri. "Implementasi Tata Kelola Bandwidth Dengan Pemanfaatan Metode Queue Tree Pada MTs Swasta Darul Ihsan." U-NET Jurnal Teknik Informatika 4, no. 2 (September 2, 2020): 18–25. http://dx.doi.org/10.52332/u-net.v4i2.195.
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MTs Swata Darul Ihsan adalah sekolah swasta yang berlokasikan di Desa Binanga Dua Kecamatan Silangkitang, sekolah swasta tersebut menggunakan akses jaringan internet yang merupakan sarana informasi yang diginakan saat ini. Namun disaat terjadinya perebutan kuota pada bandwidth membuat akses internet cenderung menjadi tidak stabil. Untuk membuat keadaannya menjadi lebih baik maka perlu dilakukannya memanajemen bandwidth dengan Mikrotik RB750 menggunakan sistem Queue Tree. Dengan ini maka download, upload, dan browsing akan di bagi menggunakan sistem Queue Tree yang ada pada Mikrotik. Sistem yang ada pada Mikrotik akan dibuka dengan menggukan aplikasi Winbox untuk memanajemen bandwidth sehingga perebuant kuota tidak terjadi seperti sebelumnya.
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Hidayatulloh, Syarif, and Muhamad Mastur Rifa’i. "Penerapan Simple Queue Dalam Pengelolaan Bandwidth Local Area Network (Studi Kasus: PT Sumber Berkah Niaga)." Jurnal Infortech 2, no. 2 (December 15, 2020): 217–22. http://dx.doi.org/10.31294/infortech.v2i2.9228.
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Bandwidth merupakan bagian penting dalam jaringan komputer yang dipakai sebagai data transfer rate, yaitu jumlah data yang bisa dialirkan dari satu titik ke titik lain. Jaringan komputer yang terintegrasi dengan internet pada PT Sumber Berkah Niaga merupakan unsur penting dalam aktifitas produktif perusahaan. Penggunaan bandwidth internet tentunya sangat mempengaruhi kinerja pegawai dalam menggunakan jaringan komputer. Namun pengelolaan dari jaringan komputer pada PT Sumber Berkah Niaga khususnya pengelolaan bandwidth masih belum terintegrasi dengan baik. Tidak adanya pengaturan pembagian bandwidth terhadap client dalam jaringan mengakibatkan terhambatnya aktifitas perusahaan. Penelitian ini bertujuan untu menyelesaikan masalah tersebut dengan menerapkan pengelolaan bandwidth dengan membatasi penggunaan secara maksimal terhadap client dalam jaringan komputer PT Sumber Berkah Niaga dengan metode simple queue pada Mikrotik. Setelah penerapan simple queue dilakukan pengujian terhadap client dan menunjukkan bahwa pembatasan maksimal penggunaan bandwidth upload maupun download berhasil dibuktikan dengan tidak ada client yang melebihi batas bandwidth yang telah ditentukan.
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Arifin, M. Agus Syamsul. "Penerapan Bandwidth Management Untuk Dynamic User Pada Mikrotik Menggunakan Per Connection Queue (PCQ)." JATISI (Jurnal Teknik Informatika dan Sistem Informasi) 4, no. 2 (March 18, 2018): 194–98. http://dx.doi.org/10.35957/jatisi.v4i2.102.
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Simple Queue adalah sebuah solusi yang paling mudah untuk di gunakan dalam melakukan Bandwidth Management dengan mengisikan jumlah Bandwidth yang akan di gunakan dan alamat IP yang akan di batasi Bandwidthnya. Permasalahan akan muncul jika ternyata jumlah User yang ada merupakan User dengan jumlah yang cukup banyak. Belum lagi jika User tersebut bersifat Dynamic. User dapat tersambung atau punter putus sesuai kemauan User. Akan sangat merepotkan jika harus membuat Simple Queue satu per satu untuk setiap User. Salah satu cara yang dapat digunakan untuk mengatasi permasalah ini adalah dengan PCQ (Per Connection Queue), PCQ merupakan salah satu cara melakukan manajemen Bandwidth yang cukup mudah dimana PCQ bekerja dengan sebuah algoritma yang akan membagi Bandwidth secara merata kesejumlah User yang aktif. PCQ ideal diterapkan apabila dalam pengaturan Bandwidth kesulitan dalam penentuan Bandwidth per User. Cara kerja PCQ adalah dengan menambahkan Sub-Queue, berdasar klasifikasi tertentu dengan memasukkan jumlah besaran Bandwidth Upload dan Download. PCQ membagi Banwidth secara merata ke setiap User.
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Jumiati, Sukri,. "ANALISA BANDWIDTH MENGGUNAKAN METODE ANTRIAN Per Connection Queue." Rabit : Jurnal Teknologi dan Sistem Informasi Univrab 2, no. 2 (August 7, 2017): 244–57. http://dx.doi.org/10.36341/rabit.v2i2.213.
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The existing internet network in several places such as internet cafes (internet cafes), often there is a dominance of bandwidth between clients caused by one or several clients to download so that it will interfere with other clients. To overcome the problem of bandwidth domination between clients, a division of bandwidth is carried out. By utilizing a network router, network administrators can easily manage bandwidth on client computers connected to the network. The technology used to implement it is based on an approach called QoS (Quality of Service) and adjusted to the TIPHON standard. The way it works is by identifying data traffic through the network, then implementing a QoS policy that is used to protect and prioritize it. The goal to be achieved by the author is to balance the bandwidth allocation according to user needs, apply queue rules to data traffic so that queues do not occur. The queuing method used in this study is to use the Per Connection Queue and winbox methods as software for remote routers.
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Koubeissi, M., E. Arnaud, M. Thevenot, T. Monediere, E. Peragin, and H. Diez. "Wide aperture circularly polarized antenna for small telemetry satellites." International Journal of Microwave and Wireless Technologies 4, no. 6 (September 19, 2012): 623–28. http://dx.doi.org/10.1017/s1759078712000608.
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This paper focuses on the design of a telemetry antenna system intended for small satellites. It provides an axial ratio (AR) lower than 3 dB over ±60° conical space angle with over 20% of bandwidth. The antenna consists of a multilayer patch element fed by a wideband feeding circuit. The latter is an appropriate adjustment of 90° hybrid couplers and 180° ring coupler. We show that this design provides high-quality circular polarization properties for agile small satellites without having to suspend their mission to download their data and also without sacrificing the antenna low profile and wide bandwidth. The antenna is fabricated and the experimental performance is presented and followed by a discussion.
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Simbolon, Jesika Marsaulina, Hani Harafani, and Rachmawati Darma Astuti. "Indonesia Perancangan Jaringan Komputer untuk Sekolah Dasar Dengan Sistem Manajemen Bandwidth Hierarchical Token Bucket." Jurnal Bumigora Information Technology (BITe) 3, no. 1 (July 10, 2021): 56–68. http://dx.doi.org/10.30812/bite.v3i1.966.
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Pada perkembangan teknologi layanan internet menjadi kebutuhan utama sebagai sarana komunikasi dan bertukar informasi. Terutama pada bidang pendidikan seperi sekolah dasar sangat diperlukan fasilitas internet yang penggunanya adalah staff administrasi, guru, siswa melalui internet dapat mengakses berbagai ilmu pengetahuan yang dibutuhkan dengan cepat, sehingga dapat mempermudah proses belajar. Dari sekian banyak pengguna internet layanan internet menjadi buruk. Maka dari itu sistem pembagian bandwidth atau bisa disebut dengan manajemen bandwidth haruslah sesuai dengan kondisi layanan jaringan yang akan diterapkan dan manajemen bandwidth menjadi hal yang sangat diperlukan bagi jaringan multi layanan, karena semakin banyak dan bervariasinya aplikasi yang dapat dilayani oleh suatu jaringan berpengaruh pada penggunaan link dalam jaringan tersebut. Metode dalam penelitian ini menggunakan studi pustaka (library research) dan pengimplementasian menggunakan metode Heararchical Token Bucket yaitu sebuah aplikasi yang berfungsi untuk mengatur pembagian bandwidth. Tujuan analisis ini untuk memberikan adanya sistem management bandwidth menjadikan pembagian secara adil bagi pengguna yang terhubung ke jaringan. Hasil penelitian menunjukkan bahwa metode Hierarchical Token Bucket dapat mengatur streaming dan browsing. Berdasarkan analisis penelitian yang telah dilakukan didapatkan kesimpulan yaitu pengimpelemntasian metode HTB (Hierarchical Token Bucket) untuk manajemen bandwidth telah sesuai dengan kebutuhan dan standar dalam penggunaan internet untuk kegiatan download, upload, streaming dan browsing.
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Putra, Ketut Gede Widia Pratama, Gede Saindra Santyadiputra, and Made Windu Antara Kesiman. "Penerapan Manajemen Bandwidth Menggunakan Metode Hierarchical Token Bucket Pada Layanan Hotspot Mikrotik Undiksha." CESS (Journal of Computer Engineering, System and Science) 5, no. 1 (January 31, 2020): 146. http://dx.doi.org/10.24114/cess.v5i1.14959.
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Penelitian ini bertujuan untuk mengetahui (1) Penerapan manajemen bandwidth menggunakan metode Hierarchical Token Bucket (HTB) pada layanan hotspot mikrotik Undiksha. (2) Hasil pengujian kualitas layanan internet dari parameter Quality of Service (QoS) yang sudah diterapkan menggunakan metode Hierarchical Token Bucket (HTB).Metode penelitian yang digunakan adalah menggunakan pendekatan Network Development Life Cycle (NDLC), dengan melalui beberapa tahapan yaitu analisis, desain, simulasi, implementasi, monitoring, dan manajemen. Hasil penelitian menunjukkan (1) Penerapan manajemen bandwidth HTBpada router mikrotik dengan menggabungkan layanan hotspot mikrotik, sudah berjalan dengan baik, yang dibuktikan dengan fungsi dari metode HTB bisa berjalan dengan baik. (2) Hasil pengukuran dengan menggunakan 2 metode manajemen bandwidth, diperoleh hasil rata-rata download dan upload dari metode HTB lebih besar dibandingkan dengan metode simple queue. Dan parameter packet loss, throughput, delay dan jitter yang dilakukan uji menggunakan aplikasi wireshark menerangkan bahwa metode HTB mendapatkan nilai rata-rata yang lebih baik dibandingkan dengan metode simple queue.
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Chang, Ruay-Shiung, Ming-Huang Guo, and Hau-Chin Lin. "A multiple parallel download scheme with server throughput and client bandwidth considerations for data grids." Future Generation Computer Systems 24, no. 8 (October 2008): 798–805. http://dx.doi.org/10.1016/j.future.2008.04.006.
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Chen, Qianqiao, Vaibhawa Mishra, Jose Nunez-Yanez, and Georgios Zervas. "Reconfigurable Network Stream Processing on Virtualized FPGA Resources." International Journal of Reconfigurable Computing 2018 (2018): 1–11. http://dx.doi.org/10.1155/2018/8785903.
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The software defined network and network function virtualization are proposed to address the network ossification issue in current Internet infrastructure. Network functions and services are implemented as software applications to increase the programmability of network. However, involving general purpose processors in data plane restricts the bandwidth of network services. Therefore, to keep both the bandwidth and flexibility, a FPGA platform is suggested as a reconfigurable platform to deliver high bandwidth virtual network functions on data plane. In this paper, the FPGA resource has been virtualized by interconnecting partial reconfigurable regions to deliver high bandwidth reconfigurable processing on network streams. With the help of partial reconfiguration technology, network functions on our platform can be configured without affecting other functions on the same FPGA device. The on-chip interconnect system is further evaluated by comparing with existing network-on-chip system. A reconfiguration process is also proposed and demonstrated that it can be performed on our platform. The process can happen in the real time of network services and it is able to keep the original function working during the download of partial bitstream.
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Mukherjee, Rahul, and Abhigyan Singh. "Reconfiguring Mobile Media Assemblages: Download Cultures and Translocal Flows of Affective Platforms." Asiascape: Digital Asia 4, no. 3 (September 8, 2017): 257–84. http://dx.doi.org/10.1163/22142312-12340080.
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Abstract Memory cards are flash memory devices that enable storage and circulation of music in audio and video formats. In some regions in Asia, the bandwidth to stream musical content is unavailable, and people go to ‘download vendors’, who add content to their memory cards. We investigate regional standards/formats that allow Chinese dvd players to be sold in India and North Korea that can play not only vcds/dvds but also memory cards. Contemporary platform discourse disproportionately studies algorithm and-interface-based online platforms that support streaming cultures. We explore offline digital platforms that enable download cultures by considering memory cards as medial objects that are attached to various platform ecosystems. Such ecosystems based on informal business models and network logic act as both intermediaries and foundations that provide users with opportunities to share and participate. Going beyond instrumental uses of platforms, we discern their affectivity: their ability to provide pleasurable entertainment and aesthetic experiences.
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Prihantoro, Cahyo, Agung Kharisma Hidayah, and Sandhy Fernandez. "Analisis Manajemen Bandwidth Menggunakan Metode Queue Tree pada Jaringan Internet Universitas Muhammadiyah Bengkulu." Just TI (Jurnal Sains Terapan Teknologi Informasi) 13, no. 2 (July 30, 2021): 81. http://dx.doi.org/10.46964/justti.v13i2.750.
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Internet merupakan hal penting dan sudah menjadi kebutuhan bagi manusia di dunia pada umumnya, terlebih seperti kondisi sekarang ini. Jaringan internet bisa dijadikan konsep dimana beberapa komputer dalam suatu Perguruan Tinggi dapat saling berhubungan dan dapat berbagi data serta informasi yang terhubung dengan koneksi dunia. Dosen, karyawan, maupun mahasiswa (user) suatu waktu mengeluh karena penggunaan internet sangat lambat jika sedang padat pengguna. Karena adanya penggunaan Bandwidth yang berlebihan dan kurang termanajemennya dengan baik pada traffic jaringan, sehingga merugikan user lain. Tanpa adanya manajemen Bandwidth pada jaringan internet Universitas Muhammadiyah Bengkulu ini mengakibatkan pembagian Bandwidth tidak merata atau kurang maksimal. Berdasarkan hasil penelitian terdahulu pembagian Bandwidth pada jaringan internet Universitas Muhammadiyah Bengkulu menggunakan Simple Queue yang tidak teroptimalkan, namun seiring berjalannya waktu tidak digunakan lagi karena adanya perombakan topologi jaringan pada akhir Desember 2019. Oleh karenaitu coba diterapkanlah Manajemen Bandwidth dengan metode Queue Tree pada jaringan internet Universitas Muhammadiyah Bengkulu ini agar Bandwidth lebih stabil. Queue Tree memberikan limit kecepatan yang berbeda antara traffic game online dan browsing, kebutuhan Queue lebih detail berdasarkan service, protokol, port, dsb. Oleh karena itu manajemen Bandwidth di jaringan internet Universitas Muhammadiyah Bengkulu ini sangatlah dibutuhkan agar user tidak kecewa karena koneksi internet yang dirasa lambat. Hasil yang didapat dengan adanya pemisahan Queue Tree akses Upload maupun download kesumber internet serta akses user berdasarkan aktivitas dapat dipisah sehingga tidak saling mengganggu kebutuhan akses internet. Penerapan Queue Tree cukup rumit dan menguras energi, sehingga diharapkan admin jaringan memiliki pemahaman dasar jaringan yang baik.
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Rodiyah, Afifatur. "Implementation of Bandwidth Management in Cafe Billing Systems Using QR Code Authentication." Jurnal Jartel: Jurnal Jaringan Telekomunikasi 7, no. 2 (November 1, 2018): 1–7. http://dx.doi.org/10.33795/jartel.v7i2.170.
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Seeing the high demand for internet, this research will design an implementation of bandwidth management using a user manager, which will be applied to the billing system in public places with internet services. This aims to regulate the bandwidth or internet bandwidth that will be used by each customer in accordance with the total payment. This implementation utilizes a QR Code which will be used as authentication. This QR Code will be printed on the customer's payment receipt / receipt and will be scanned through the application installed on the android mobile phone. The application will be connected to a server which will later connect the customer's smartphone to connect to the internet service. After making the application, it is tested to check the accuracy of the bandwidth received by the customer. From the bandwidth accuracy testing, the results show that the delivery of bandwidth to the customer has an error with an average error in the download bandwidth of 6.5% and the upload bandwidth of 17%. The occurrence of this error is due to the ping and jitter values ??during data transmission, with an average ping of 78.7 ms and a jitter of 82.7 ms. Whereas in reading the QR Code, it was found that when using a camera with a 5MP resolution the QR Code can be read up to a distance of 90 cm and when using a camera with a resolution of 20.7MP, the QR Code can be read up to a distance of 110 cm.
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Mor, Jyoti, Dr Dinesh Rai, and Dr Naresh Kumar. "An XML based Web Crawler with Page Revisit Policy and Updation in Local Repository of Search Engine." International Journal of Engineering & Technology 7, no. 3 (June 23, 2018): 1119. http://dx.doi.org/10.14419/ijet.v7i3.12924.
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In a large collection of web pages, it is difficult for search engines to keep their online repository updated. Major search engines have hundreds of web crawlers that crawl the WWW day and night and send the downloaded web pages via a network to be stored in the search engine’s database. These results in over utilization of network resources like bandwidth, CPU cycles and so on. This paper proposes an architecture that tries to reduce the utilization of shared network resources with the help of an advanced XML based approach. This focused crawling based architecture is trained to download only the high quality data from the internet leaving behind the web pages which are not relevant to the desired domain. Here, a detailed layout of the proposed system is described which is capable of reducing the load on network and reducing the problem arise in residency of mobile agent at the remote server.
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Gañán, Carlos, Jose L. Muñoz, Oscar Esparza, Jonathan Loo, Jorge Mata-Díaz, and Juanjo Alins. "BECSI: Bandwidth Efficient Certificate Status Information Distribution Mechanism for VANETs." Mobile Information Systems 9, no. 4 (2013): 347–70. http://dx.doi.org/10.1155/2013/139246.
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Certificate revocation is a challenging task, especiallyin mobile network environments such as vehicular ad Hoc networks (VANETs).According to the IEEE 1609.2 security standard for VANETs, public keyinfrastructure (PKI) will provide this functionality by means of certificate revocation lists (CRLs).When a certificate authority (CA)needs to revoke a certificate, itglobally distributes CRLs.Transmitting these lists pose a problem as they require high update frequencies and a lot of bandwidth. In this article, we propose BECSI, aBandwidth Efficient Certificate Status Informationmechanism to efficiently distributecertificate status information (CSI) in VANETs.By means of Merkle hash trees (MHT), BECSI allowsto retrieve authenticated CSI not onlyfrom the infrastructure but also from vehicles actingas mobile repositories.Since these MHTs are significantly smaller than the CRLs, BECSIreduces the load on the CSI repositories and improves the response time for the vehicles.Additionally, BECSI improves the freshness of the CSIby combining the use of delta-CRLs with MHTs.Thus, vehicles that have cached the most current CRLcan download delta-CRLs to have a complete list of revoked certificates.Once a vehicle has the whole list of revoked certificates, it can act as mobile repository.
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Kubde, Vidya S., and Sudhir Sawarkar. "Evaluation of MPTCP Schedulers in Diverse Scenarios." European Journal of Electrical Engineering and Computer Science 5, no. 2 (April 23, 2021): 50–54. http://dx.doi.org/10.24018/ejece.2021.5.2.275.
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Multipath Transmission Control Protocol (MPTCP) is an extension of TCP meant for multihomed devices, which uses all the available interfaces for a single connection. MPTCP was evolved for Bandwidth aggregation and re silence to network failure. The wireless networks of multihomed devices are of different characteristics, when used together decreases Quality of Service (QoS). MPTCP schedulers tried to fill this gap with different approaches. In this paper we tried to study these schedulers in different network scenarios and came with the findings that to achieve good throughput and decrease download time, only fast paths are preferred.
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Kim, Hyun-Wook, and Sung-Hyun Yang. "Region of interest–based segmented tiled adaptive streaming using head-mounted display tracking sensing data." International Journal of Distributed Sensor Networks 15, no. 12 (December 2019): 155014771989453. http://dx.doi.org/10.1177/1550147719894533.
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To support 360 virtual reality video streaming services, high resolutions of over 8K and network streaming technology that guarantees consistent quality of service are required. To this end, we propose 360 virtual reality video player technology and a streaming protocol based on MPEG Dynamic Adaptive Streaming over HTTP Spatial Representation Description to support the player. The player renders the downsized video as the base layer, which has a quarter of the resolution of the original video, and high-quality video tiles consisting of tiles obtained from the tiled-encoded high-quality video (over 16K resolution) as the enhanced layer. Furthermore, we implemented the system and conducted experiments to measure the network bandwidth for 16K video streaming and switching latency arising from changes in the viewport. From the results, we confirmed that the player has a switching latency of less than 1000 ms and a maximum network download bandwidth requirement of 100 Mbps.
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Sokolov, Volodymyr, Bohdan Vovkotrub, and Yevhen Zotkin. "COMPARATIVE BANDWIDTH ANALYSIS OF LOWPOWER WIRELESS IOT-SWITCHES." Cybersecurity: Education, Science, Technique, no. 5 (2019): 16–30. http://dx.doi.org/10.28925/2663-4023.2019.5.1630.
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The article presents the research and comparative analysis of the bandwidth of low-power wireless IoT devices as wireless switches. The following IoT devices were investigated: Raspberry Pi 3 Model B and Raspberry Pi Zero W. The DS18B20 and INA219 sensors investigated and analyzed the dependence of FTP multimedia data transmission speed on wireless Wi-Fi network on the temperature of the switch processor, temperature. The environment and the current and voltage consumed by the switch. Advantages of sensors with GPIO interface over analog meters for this experiment are revealed. Much of the work is devoted to the development of automation of results from GPIO interfaces, which helped eliminate human error and get more accurate metrics. Measurement automation was developed using Python 3.7 programming language. Using the INA219 library we were able to obtain current and voltage indicators from the ina219 board. To get temperature indicators sufficiently built into Python libraries to read temperature files in Raspbian. The article focuses on the synchronicity of measurement results records for more accurate analysis. Therefore, an FTP client was developed that measures the download speed of the file from the FTP server and records the results simultaneously with temperature, current and voltage measurements. To this end, attention is drawn to the multithreading in Python programming language and the transmission of commands using TCP sockets in that language. As a result, the dependence of the measured factors was calculated using the Pearson correlation formula. These measurement factors affect the autonomy and energy consumption, which is very important for IoT devices, and therefore, among the devices tested, recommendations were made regarding their choice when used depending on the conditions.
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Branch, Philip. "Fifth Generation Cellular Networks." Australian Journal of Telecommunications and the Digital Economy 4, no. 3 (September 29, 2016): 96. http://dx.doi.org/10.18080/ajtde.v4n3.63.
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In this article the emerging requirements that are driving the fifth generation of mobile cellular networks are discussed and the technologies that will most likely be used to satisfy those requirements are identified. Proposals for 5G are at an early stage, but there is an expectation that the early 2020s will see the first deployments.The requirements for 5G are increased download speeds, the need to deal with increased cell density, increased bandwidth efficiency and availability of new bandwidth. It is likely that 5G will play a role in the emerging Internet of Things, potentially resulting in enormous increase in the number of attached devices.To meet the expected requirements 5G is likely to make use of spectrum in the millimetre range, beam-forming antenna arrays, massive Multi-Input Multi-Output, and fundamental changes to base station design. In this paper the key drivers for 5G are discussed including the very large numbers of devices in cells, the need to make available new spectrum, energy efficient ways of implementing base station capabilities, standards developments so far and 5G related issues for Australia.
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Branch, Philip. "Fifth Generation Cellular Networks." Journal of Telecommunications and the Digital Economy 4, no. 3 (September 29, 2016): 96–109. http://dx.doi.org/10.18080/jtde.v4n3.63.
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In this article the emerging requirements that are driving the fifth generation of mobile cellular networks are discussed and the technologies that will most likely be used to satisfy those requirements are identified. Proposals for 5G are at an early stage, but there is an expectation that the early 2020s will see the first deployments.The requirements for 5G are increased download speeds, the need to deal with increased cell density, increased bandwidth efficiency and availability of new bandwidth. It is likely that 5G will play a role in the emerging Internet of Things, potentially resulting in enormous increase in the number of attached devices.To meet the expected requirements 5G is likely to make use of spectrum in the millimetre range, beam-forming antenna arrays, massive Multi-Input Multi-Output, and fundamental changes to base station design. In this paper the key drivers for 5G are discussed including the very large numbers of devices in cells, the need to make available new spectrum, energy efficient ways of implementing base station capabilities, standards developments so far and 5G related issues for Australia.
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Indrianti, Rizka Kurnia. "Build a Rectangular Patch Single Microstrip Antenna with Aperture Coupled for Wifi Application 2.4 Ghz." JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING 3, no. 1 (July 25, 2019): 8. http://dx.doi.org/10.31289/jite.v3i1.2464.
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<p><span>Wifi technology is a means of obtaining information in a fast way, to strengthen the signal, for that it is required that the functioning antenna emit and receive electromagnetic waves in which contained the information signal. A wide range of antennas have been developed for a wide range of applications, one of which is a microstrip antenna. Microstrip antennas have small characteristics, are lightweight, thin, easy to fabricate, and can be used at very long distances. The results of single rectangular patch microstrip antenna measurements indicate that the antenna can work optimally with a frequency of 2,440 GHz, has a return loss-22,182 dB value, VSWR 1,169 value, 0.3452 dB bandwidth value, LOS-45.6 dBm power value with Percentage upload is 97% higher than the reference antenna and the download percentage is 88% higher than the reference antenna, NLOS-79 dBm value with a percentage upload of 33% compared to the reference antenna and the download percentage 12% higher than the Reference antenna, for the range of distances capable of receiving signals up to 120 meters with a percentage of percentage of is 16% higher than the reference antenna.</span></p>
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Huang, Tianyu, Xijuan Guo, Yue Zhang, and Zheng Chang. "Collaborative Content Downloading in VANETs with Fuzzy Comprehensive Evaluation." Symmetry 11, no. 4 (April 6, 2019): 502. http://dx.doi.org/10.3390/sym11040502.
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Vehicle collaborative content downloading has become a hotspot in current vehicular ad-hoc network (VANET) research. However, in reality, the highly dynamic nature of VANET makes users lose resources easily, and the transmission of invalid segment data also wastes valuable bandwidth and storage of the users’ vehicles. In addition, the individual need of each customer vehicle should also be taken into consideration when selecting an agent vehicle for downloading. In this paper, a novel scheme is proposed for vehicle selection in the download of cooperative content from the Internet, by considering the basic evaluation information of the vehicle. To maximize the overall throughput of the system, a collaborative content downloading algorithm is proposed, which is based on fuzzy evaluation and a customer’s own expectations, in order to solve the problems of agent vehicle selection. With the premise of ensuring successful downloading and the selection preferences of customer vehicles, linear programming is used to optimize the distribution of agent vehicles and maximize customer’s satisfaction. Simulation results show that the proposed scheme works well in terms of average quality of service, average bandwidth efficiency, failure frequency, and average consumption.
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Yu, Hsiang-Fu. "Single-Channel Data Broadcasting under Small Waiting Latency." Journal of Applied Mathematics 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/629350.
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Due to the advancement of network technology, video-on-demand (VoD) services are growing in popularity. However, individual stream allocation for client requests easily causes a VoD system overload; when its network and disk bandwidth cannot match client growth. This study thus presents a fundamentally different approach by focusing solely on a class of applications identified as latency tolerant applications. Because video broadcasting does not provide interactive (i.e., VCR) functions, a client is able to tolerate playback latency from a video server. One efficient broadcasting method is periodic broadcasting, which divides a video into smaller segments and broadcasts these segments periodically on multiple channels. However, numerous practical systems, such as digital video broadcasting-handheld (DVB-H), do not allow clients to download video data from multiple channels because clients usually only have one tuner. To resolve this problem in multiple-channel broadcasting, this study proposes a novel single-channel broadcasting scheme, which leverages segment-broadcasting capability further for more efficient video delivery. The comparison results show that, with the same settings of broadcasting bandwidth, the proposed scheme outperforms the alternative broadcasting scheme, the hopping insertion scheme, SingBroad, PAS, and the reverse-order scheduling scheme for the maximal waiting time.
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Giustiniano, Domenico, Eduard Goma, Alberto Lopez Toledo, and George Athanasiou. "Optimizing TCP Performance in Multi-AP Residential Broadband Connections via Minislot Access." Journal of Computer Networks and Communications 2013 (2013): 1–12. http://dx.doi.org/10.1155/2013/752363.
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The high bandwidth demand of Internet applications has recently driven the need of increasing the residential download speed. A practical solution to the problem is to aggregate the bandwidth of 802.11 access points (APs) backhauls in range. Since 802.11 devices are usually single radio, the communication to APs on different radio channels requires a time-division multiple access (TDMA) policy at the client station. With an in-depth experimental analysis and a customized 802.11 driver, in this paper, we show that the usage of multi-AP TDMA policy may cause degradation of the TCP throughput and an underutilization of the AP backhauls. We then introduce a simple analytical model that accurately predicts the TCP round-trip time (RTT) with a multi-AP TDMA policy and propose a resource allocation algorithm to reduce the observed TCP RTT with a very low computational cost. Our proposed scheme runs locally at the client station and improves the aggregate throughput up to 1.5 times compared to state-of-the-art allocations. We finally show that the throughput achieved by our algorithm is very close to the theoretical upper bound in key simulation scenarios.
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Kusbandono, Hendrik, and Eva Mirza Syafitri. "Penerapan Quality Of Service (QoS) dengan Metode PCQ untuk Manajemen Bandwidth Internet pada WLAN Politeknik Negeri Madiun." RESEARCH : Computer, Information System & Technology Management 2, no. 1 (April 23, 2019): 7. http://dx.doi.org/10.25273/research.v2i1.3743.
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Teknologi <em>Wireless</em> LAN difungsikan untuk memfasilitasi kemudahan untuk koneksi jaringan, tidak lain termasuk jaringan internet. Manajemen <em>bandwidth</em> merupakan mengalokasikan suatu <em>bandwidth</em> yang berfungsi untuk mendukung kebutuhan atau keperluan suatu jaringan internet agar memberikan jaminan kualitas layanan suatu jaringan QoS (<em>Quality of Services</em>). Dengan tujuan untuk mengetahui bagaimana kualitas layanan dan kinerja jaringan <em>Wireless</em> LAN (WLAN), serta mengoptimalkan pembagian <em>bandwidth</em> secara merata ke sejumlah <em>client</em> yang aktif. Metode penelitian ini adalah penerapan <em>Quality </em><em>of Service</em> (QoS) yang digunakan untuk mengukur kualitas <em>b</em><em>andwidth</em> internet yang berjalan pada Wireless LAN dengan parameter <em>download</em>, <em>upload</em>, <em>throughput</em>, <em>delay</em>, <em>jitter</em>, dan <em>packet loss</em><em> </em>dan manajemen <em>bandwidth</em> dengan PCQ (<em>Per Connection Queue</em>). Hasil penelitian ini adalah pada rentang waktu 08.00 s/d 16.00 WIB quota IP Address dinamis habis, sehingga tidak dapat mengkoneksikan ke hotspot PNM-MHS. Menunjukkan rata-rata nilai sebelum dilakukan manajemen <em>bandwidth </em>metode PCQ pada <em>throughput</em> adalah 374,98 Kbps, nilai <em>delay</em> adalah 40,16 ms dengan kategori latensi “Sangat Bagus”, nilai <em>jitter</em> adalah 99,43 ms dengan kategori degradasi “Sedang”, nilai <em>packet loss</em> adalah 23,94 % dengan kategori degredasi “Sedang”. Sedangkan setelah melakukan manajemen <em>bandwidth </em>nilai <em>throughput</em> adalah 362,56 Kbps, nilai <em>delay</em> adalah 29,84 ms dengan kategori latensi “Sangat Bagus”, nilai <em>jitter</em> adalah 55,53 ms dengan kategori degradasi “Bagus”, nilai <em>packet loss</em> adalah 14,29 % dengan kategori degredasi “Bagus”. Manajemen <em>bandwidth </em>metode PCQ bekerja dengan sebuah algoritma yang akan membagi <em>bandwidth</em> secara merata ke sejumlah client yang aktif. PCQ ideal diterapkan apabila dalam pengaturan <em>bandwidth</em> kesulitan dalam penentuan <em>bandwidth</em> per client.
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Rahman, Waqas ur, Md Delowar Hossain, and Eui-Nam Huh. "Fuzzy-Based Quality Adaptation Algorithm for Improving QoE from MPEG-DASH Video." Applied Sciences 11, no. 11 (June 6, 2021): 5270. http://dx.doi.org/10.3390/app11115270.
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Video clients employ HTTP-based adaptive bitrate (ABR) algorithms to optimize users’ quality of experience (QoE). ABR algorithms adopt video quality based on the network conditions during playback. The existing state-of-the-art ABR algorithms ignore the fact that video streaming services deploy segment durations differently in different services, and HTTP clients offer distinct buffer sizes. The existing ABR algorithms use fixed control laws and are designed with predefined client/server settings. As a result, adaptation algorithms fail to achieve optimal performance across a variety of video client settings and QoE objectives. We propose a buffer- and segment-aware fuzzy-based ABR algorithm that selects video rates for future video segments based on segment duration and the client’s buffer size in addition to throughput and playback buffer level. We demonstrate that the proposed algorithm guarantees high QoE across various video player settings and video content characteristics. The proposed algorithm efficiently utilizes bandwidth in order to download high-quality video segments and to guarantee high QoE. The results from our experiments reveal that the proposed adaptation algorithm outperforms state-of-the-art algorithms, providing improvements in average video rate, QoE, and bandwidth utilization, respectively, of 5% to 18%, about 13% to 30%, and up to 45%.
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Sullivan, Woodruff T., Dan Werthimer, Stuart Bowyer, Jeff Cobb, David Gedye, and David Anderson. "A New Major Seti Project Based on Project Serendip Data and 100,000 Personal Computers." International Astronomical Union Colloquium 161 (January 1997): 729–34. http://dx.doi.org/10.1017/s0252921100015311.
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AbstractWe are now developing an innovative SETI project, tentatively named seti@home, involving massively parallel computation on desktop computers scattered around the world. The public will be uniquely involved in a real scientific project. Individuals will download a Screensaver program that will not only provide the usual attractive graphics when their computer is idle, but will also perform sophisticated analysis of SETI data using the host computer. The data are tapped off Project Serendip IV’s receiver and SETI survey operating on the 305-meter diameter Arecibo radio telescope. We make a continuous tape-recording of a 2 MHz bandwidth signal centered on the 21 cm H I line. The data on these tapes are then preliminarily screened and parceled out by a server that supplies small chunks of data (50 sec of 20 kHz bandwidth, a total of 0.25 MB) over the Internet to clients possessing the screen-saver software. After the client computer has automatically analyzed a complete chunk of data (in a much more detailed manner than Serendip normally does) a report on the best candidate signals is sent back to the server, whereupon a new chunk of data is sent out. If 50,000-100,000 customers can be achieved, the computing power will be equivalent to a substantial fraction of a typical supercomputer, and seti@home will cover a comparable volume of parameter space to that of Serendip IV.
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Yamazaki, Taku, Kazuma Asano, Satoshi Arai, Yusuke Shimomura, and Takumi Miyoshi. "LoCO: Local Cooperative Data Offloading System Based on Location Information." Journal of Telecommunications and Information Technology 1 (March 29, 2019): 67–75. http://dx.doi.org/10.26636/jtit.2019.130518.
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The development of high speed mobile networks and the widespread use of smartphones have enabled users to easily obtain large data volumes via the Internet. This causes a heavy consumption of network resources, a burden on the available bandwidth. To solve such problems, a data offloading method with a wireless LAN access point has been used to distribute traffic from mobile to fixed networks. However, the method using wireless LAN access points can only change the communication paths but cannot reduce the overall traffic. This paper proposes a local cooperative data offloading system (LoCO) that reduces the overall traffic by sharing data, with direct communication between neighbors based on their location-related information. Moreover, the authors implemented the LoCO system on Android smartphones and clarified its performance in comparison with a traditional client/server system through experiments to download data in a real-world environment.
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Lelkes, Yphtach. "A Bigger Pie: The Effects of High-Speed Internet on Political Behavior." Journal of Computer-Mediated Communication 25, no. 3 (May 1, 2020): 199–216. http://dx.doi.org/10.1093/jcmc/zmaa002.
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Abstract The impact of broader media choice on political behavior is central to the study of political communication. The availability of high-speed Internet, which allows for high bandwidth media on demand, has given consumers virtually unlimited information choices. Most research assumes that the time spent online is fixed; therefore, broader media choice decreases news consumption, political knowledge, and turnout, especially among the politically uninterested. In this article, I explore another possibility: as Internet quality improves, we spend more time online and consume more information, which subsequently increases knowledge and turnout. To test this possibility, I link geocoded Internet download speed data with survey data. A series of studies indicate that higher quality Internet increases political information search, news consumption, and political knowledge, although perhaps not turnout. This work suggests that our assumption of trade-offs between news consumption and entertainment may need reconsideration.
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Branca, Giovanni, Thomas Schierl, and Luigi Atzori. "Theoretical Models for Video on Demand Services on Peer-to-Peer Networks." International Journal of Digital Multimedia Broadcasting 2009 (2009): 1–8. http://dx.doi.org/10.1155/2009/263936.
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Peer-to-peer networks (P2Ps) are becoming more and more popular in video content delivery services, such as TV broadcast and Video on Demand (VoD), thanks to their scalability feature. Such characteristic allows for higher numbers of simultaneous users at a given server load and bandwidth with respect to alternative solutions. However, great efforts are still required to study and design reliable and QoS-guaranteed solutions. In this paper, within the scenario of P2P-based VoD services, we study the phenomenon of peer churns and propose four models of the peer behaviour to evaluate its impact on the system performance, which are based on the Gilbert-Elliot chain, the fluidic representation of the user behavior, and a queuing analysis of the system. The models are compared by computing the resources the system has to add on top of the P2P network to satisfy all the download requests. Simulations show important relationships between playback buffer length, peer request rate, peer average lifetime, and server upload rate.
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Quinlan, Jason. "TV on the move: How the growth in Internet streaming influences the video quality on your mobile device." Boolean: Snapshots of Doctoral Research at University College Cork, no. 2014 (January 1, 2014): 159–63. http://dx.doi.org/10.33178/boolean.2014.32.
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Every day, millions of people logon to the Internet to view their favorite TV show on Netflix, or similar streaming services, or to watch the latest viral video on YouTube. Two things are paramount, 1) that they receive the best streaming quality available, and 2) the video starts to play as quickly as possible. There is nothing worse than a video that stops and starts, takes forever to view or constantly changes between viewable qualities (resolutions). Due to our limited download speeds (bandwidth), in most houses it is not uncommon to hear “Stop downloading, I’m trying to watch something on Netflix”. When we couple this rise in online streaming with the growing number of portable devices (smart phones, tablets, laptops) we see an ever-increasing demand for high-definition online videos while on the move. This demand for mobile streaming highlights the need for adaptive video streaming schemes that can adjust to ...
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Lindra, Ayu Maulisa, Suroso Suroso, and Jon Endri. "Rancang Bangun Aplikasi Monitoring Performance WiFi.Id PT.Telekomunikasi Berbasis Web." Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) 4, no. 1 (July 17, 2019): 106. http://dx.doi.org/10.30645/jurasik.v4i1.123.
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Internet is the nessecity that widely used today. One of the way to access the internet it self, we can use the facilities provides by PT.Telekomunikasi that is WiFi.Id. in this application, namely “The WiFi.Id Performance Monitoring Application” can be used to improving the WiFi.Id performance for making it always in good condition and stable. This application is made in web base application where is can be useful for checking WiFi.Id performance that distributed in several point in the fields, the preference from this application we can check in one point from several acceess point without needed to check every point with the provision we still getting a signal that emitted by WiFi.Id access point it self. From this application we can check the quality of bandwidth in every access point, we will know speeds of upload and download that giving and also know the value of ping and jitter in every access point that emitte the signal. This application also can show some of active access point in that location.
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Chen, Lien-Wu, Yu-Hao Peng, Yu-Chee Tseng, and Ming-Fong Tsai. "Cooperative Sensing Data Collection and Distribution with Packet Collision Avoidance in Mobile Long-Thin Networks." Sensors 18, no. 10 (October 22, 2018): 3588. http://dx.doi.org/10.3390/s18103588.
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Mobile ad hoc networks (MANETs) have gained a lot of interests in research communities for the infrastructure-less self-organizing nature. A MANET with fleet cyclists using smartphones forms a two-tier mobile long-thin network (MLTN) along a common cycling route, where the high-tier network is composed of 3G/LTE interfaces and the low-tier network is composed of IEEE 802.11 interfaces. The low-tier network may consist of several path-like networks. This work investigates cooperative sensing data collection and distribution with packet collision avoidance in a two-tier MLTN. As numbers of cyclists upload their sensing data and download global fleet information frequently, serious bandwidth and latency problems may result if all members rely on their high-tier interfaces. We designed and analyzed a cooperative framework consisting of a distributed grouping mechanism, a group merging and splitting method, and a sensing data aggregation scheme. Through cooperation between the two tiers, the proposed framework outperforms existing works by significantly reducing the 3G/LTE data transmission and the number of 3G/LTE connections.
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Azhar, Raesul. "Analisa Perbandingan Penerapan PBR Dan Non PBR Pada Protocol OSPF Untuk Koneksi Internet." Jurnal Matrik 15, no. 1 (July 26, 2017): 29. http://dx.doi.org/10.30812/matrik.v15i1.26.
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The implementation of quota policies to limit the use of the Internet, such as limiting the use of streaming media applications, download and upload activity has a purpose in order to maintain the performance of computer networks, especially companies / organizations that have low Internet bandwidth capacity. Implementation of Policy Based Routing (PBR) means choosing a path or a different route from the routing table to reach the destination address of data packets transmitted. Router device without applying the PBR will choose a path based on the IP address of the destination.This research was conducted by adopting the method NDLC in comparing the routing policy. Thestages through which the problem analysis, design and simulation prototype network topology. At this stage of prototype Simulation is done by confiuring and testing the Quality of Service (QoS) for network design. Results achieved in the form of comparisons PBR application on the router and use of NON PBR for the implementation of a policy to optimize traffi transmission of data packets or internet traffi usage by users.
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Domingues, Guilherme, Gabriel Mendonça, Edmundo De Souza E. Silva, Rosa M. M. Leão, Daniel S. Menasché, Ori Rottenstreich, Mostafa Dehghan, and Don Towsley. "The Role of Hysteresis in Caching Systems." ACM Transactions on Modeling and Performance Evaluation of Computing Systems 6, no. 1 (June 2021): 1–38. http://dx.doi.org/10.1145/3450564.
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Caching is a fundamental element of networking systems since the early days of the Internet. By filtering requests toward custodians, caches reduce the bandwidth required by the latter and the delay experienced by clients. The requests that are not served by a cache, in turn, comprise its miss stream. We refer to the dependence of the cache state and miss stream on its history as hysteresis. Although hysteresis is at the core of caching systems, a dimension that has not been systematically studied in previous works relates to its impact on caching systems between misses, evictions, and insertions. In this article, we propose novel mechanisms and models to leverage hysteresis on cache evictions and insertions. The proposed solutions extend TTL-like mechanisms and rely on two knobs to tune the time between insertions and evictions given a target hit rate. We show the general benefits of hysteresis and the particular improvement of the two thresholds strategy in reducing download times, making the system more predictable and accounting for different costs associated with object retrieval.
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Nugroho, Fredy Aga, Raden Sumiharto, and Roghib Muhammad Hujja. "Pengembangan Sistem Ground Control Station Berbasis Internet Webserver pada Pesawat Tanpa Awak." IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) 8, no. 1 (April 30, 2018): 1. http://dx.doi.org/10.22146/ijeis.30126.
Full textAbstract:
In unmanned aerial operations, the ground control station duties as a monitoring and command station so that operators on land can send mission orders, monitor the mission's course and monitor the condition of the UAV during the mission. It is necessary to have a GCS system capable of connecting with UAV that not limited with control transmitter range.This research develops GCS system using internet network and web server based. the system consists of two units, namely flying units and GCS units. The flying unit consists of Raspberry pi, modem, webcam, ADAHRS module and quadrotor with MultiWii controller. on the GCS unit consists of Raspberry pi connected on the internet network with 10Mbps download speed and 1.5Mbps upload.The GCS system can display aircraft conditions, stream video and perform command controls. Configure streaming video for delay time of no more than one second with 240x144 pixel resolution, 256kbps maximum bitrate and 5 fps framerate. This configuration runs at a 1.1 Mbps upload speed with a percentage of 93.83% bitrate compression. Aircraft condition data sent to GCS is optimal if internet bandwidth exceeds the bitrate of streaming video used on the system
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Lie, D. Y. C., J. C. Mayeda, Y. Li, and J. Lopez. "A Review of 5G Power Amplifier Design at cm-Wave and mm-Wave Frequencies." Wireless Communications and Mobile Computing 2018 (July 4, 2018): 1–16. http://dx.doi.org/10.1155/2018/6793814.
Full textAbstract:
The 5G wireless revolution presents some dramatic challenges to the design of handsets and communication infrastructures, as 5G targets higher than 10 Gbps download speed using millimeter-wave (mm-Wave) spectrum with multiple-input multiple-output (MIMO) antennas, connecting densely deployed wireless devices for Internet-of-Everything (IoE), and very small latency time for ultrareliable machine type communication, etc. The broadband modulation bandwidth for 5G RF transmitters (i.e., maximum possibly even above 1 GHz) demands high-power efficiency and stringent linearity from its power amplifier (PA). Additionally, the phased-array MIMO antennas with numerous RF front-ends (RFFEs) will require unprecedented high integration level with low cost, making the design of 5G PA one of the most challenging tasks. As the centimeter-wave (cm-Wave) 5G systems will probably be deployed on the market earlier than their mm-Wave counterparts, we will review in this paper the latest development on 15 GHz and 28 GHz 5G cm-Wave PAs extensively, while also covering some key mm-Wave PAs in the literature. Our review will focus on the available options of device technologies, novel circuit and system architectures, and efficiency enhancement techniques at power back-off for 5G PA design.
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Rossi, Dario, and Paolo Veglia. "A Hybrid Approach to Assess the Network Awareness of P2P-TV Applications." International Journal of Digital Multimedia Broadcasting 2010 (2010): 1–11. http://dx.doi.org/10.1155/2010/826351.
Full textAbstract:
In this work, we develop a general methodology to assess the level of network awareness and friendliness of P2P-TV applications. The methodology is based on a combination of active and passive measurement techniques and can be applied to any P2P-TV system since it is designed to work considering such systems as a black-boxes. As an interesting case study, we then apply this methodology to PPLive, one of the most popular P2P-TV systems nowadays. Focusing on the video content distribution, we consider several per-path and per-peer metrics, investigating which of them mostly biases PPLive download preferences. Furthermore, in order to refine the picture of PPLive peer selection policy, we not only study the impact of different metrics in isolation, but also assess the joint impact of different metrics at the same time. Our main finding is that PPLive seems mainly bandwidth greedy, but does not show any preference toward peer proximity based on RTT delay; at the same time, our results also suggest that this choice alone may provide a nonnegligible level of geographical clustering among peers as a beneficial side effect.
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Al-Abbasi, Abubakr O., and Vaneet Aggarwal. "VidCloud." ACM Transactions on Modeling and Performance Evaluation of Computing Systems 5, no. 4 (March 2021): 1–32. http://dx.doi.org/10.1145/3442187.
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As video-streaming services have expanded and improved, cloud-based video has evolved into a necessary feature of any successful business for reaching internal and external audiences. In this article, video streaming over distributed storage is considered where the video segments are encoded using an erasure code for better reliability. We consider a representative system architecture for a realistic (typical) content delivery network (CDN). Given multiple parallel streams/link between each server and the edge router, we need to determine, for each client request, the subset of servers to stream the video, as well as one of the parallel streams from each chosen server. To have this scheduling, this article proposes a two-stage probabilistic scheduling. The selection of video quality is also chosen with a certain probability distribution that is optimized in our algorithm. With these parameters, the playback time of video segments is determined by characterizing the download time of each coded chunk for each video segment. Using the playback times, a bound on the moment generating function of the stall duration is used to bound the mean stall duration. Based on this, we formulate an optimization problem to jointly optimize the convex combination of mean stall duration and average video quality for all requests, where the two-stage probabilistic scheduling, video quality selection, bandwidth split among parallel streams, and auxiliary bound parameters can be chosen. This non-convex problem is solved using an efficient iterative algorithm. Based on the offline version of our proposed algorithm, an online policy is developed where servers selection, quality, bandwidth split, and parallel streams are selected in an online manner. Experimental results show significant improvement in QoE metrics for cloud-based video as compared to the considered baselines.
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Zeng, Li, Hong Ni, and Rui Han. "An Incrementally Deployable IP-Compatible-Information-Centric Networking Hierarchical Cache System." Applied Sciences 10, no. 18 (September 8, 2020): 6228. http://dx.doi.org/10.3390/app10186228.
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The major advantage of information-centric networking (ICN) lies in in-network caching. Ubiquitous cache nodes reduce the user’s download latency of content and the drain of network bandwidth, which enables efficient content distribution. Due to the huge cost of updating an entire network infrastructure, it is realistic for ICN to be integrated into an IP network, which poses new challenges to design a cache system and corresponding content router. In this paper, we firstly observed that the behavior pattern of data requests based on a name resolution system (NRS) makes an ICN cache system implicitly form a hierarchical and nested structure. We propose a complete design and an analytical model to characterize an uncooperative hierarchical ICN caching system compatible with IP. Secondly, to facilitate the incremental deployment of an ICN cache system in an IP network, we designed and implemented a cache-supported router with multi-terabyte cache capabilities. Finally, the simulation and measurement results show the accuracy of proposed analytical model, the significant gains on hit ratio, and the access latency of the hierarchical ICN cache system compared with a flat cache system based on naming routing, as well as the high performance of the implemented ICN router.