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Dissertations / Theses on the topic 'Sdn-based'

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Published: 5 June 2025

Last updated: 1 August 2025

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1

Hossen, Md Sazzad. "Traffic Steering in SDN Based Cellular Networks." Thesis, The University of Sydney, 2019. http://hdl.handle.net/2123/20878.

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To handle the increased traffic demands on cellular networks, ultra-dense and heterogeneous deployments are required. The natural evolution of the existing cellular networks will lead towards the multi-tier structure of overlapping coverage and heterogeneous resources pool. The spatial-temporal traffic dynamics and non-uniformity of traffic cause inefficient utilization of radio resources and energy. A strong desire of finding the way to make an optimal use of diverse network resources while providing satisfactory services to the users which has shifted the interest of researchers towards traf

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SILVA, Lucas do Rego Barros Brasilino da. "HOTOM: a SDN based network virtualization for datacenters." Universidade Federal de Pernambuco, 2015. https://repositorio.ufpe.br/handle/123456789/20211.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-08-03T12:15:02Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) MSc_LucasBrasilino_Final_1.pdf: 2345785 bytes, checksum: 9f48d20f1b438a184562636ba3112aeb (MD5)<br>Made available in DSpace on 2017-08-03T12:15:02Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) MSc_LucasBrasilino_Final_1.pdf: 2345785 bytes, checksum: 9f48d20f1b438a184562636ba3112aeb (MD5) Previous issue date: 2015-07-27<br>Although datacenter’s ser

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Lejaha, Retselisitsoe. "SDN based security solutions for multi-tenancy NFV." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/24474.

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The Internet continues to expand drastically as a result of explosion of mobile devices, content, server virtualization, and advancement of cloud services. This increase has significantly changed traffic patterns within the enterprise data centres. Therefore, advanced technologies are needed to improve traditional network deployments to enable them to handle the changing network patterns. Software defined networks (SDN) and network function virtualisation (NFV) are innovative technologies that enable network flexibility, increase network and service agility, and support service-driven virtual

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Faizan, Shah Ali. "SDN based security using cognitive algorithm against DDOS." Master's thesis, University of Cape Town, 2018. http://hdl.handle.net/11427/29880.

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The internet and communication industry continue to develop new technologies rapidly, which has caused a boom in smart and networking device manufacturing. With new trends, operators are constantly battling towards deploying multiple systems to cater for the need of all users. The higher bandwidth utilization and flexibility demanded new networking solutions which paved way for Software Defined Network (SDN). SDN is centralized platform which works with other technologies such as Network Function Virtualization (NFV) to offer reliable, flexible and centrally controllable network solutions. It

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Ekanayake, Mudiyanselage Wijaya Dheeshakthi. "An SDN-based Framework for QoSaware Mobile Cloud Computing." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/35117.

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In mobile cloud computing (MCC), rich mobile application data is processed at the cloud infrastructure by reliving resource limited mobile devices from computationally complex tasks. However, due to the ubiquitous and mobility nature, providing time critical rich applications over remote cloud infrastructure is a challenging task for mobile application service providers. Therefore, according to the literature, close proximity placement of cloud services has been identified as a way to achieve lower end-to-end access delay and thereby provide a higher quality of experience (QoE) for rich mobile

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Isolani, Pedro Heleno. "Interactive monitoring, visualization, and configuration of openflow-based SDN." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/127452.

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Redes Definidas por Software (Software-Defined Networking – SDN) é um paradigma emergente que sem dúvida facilita a inovação e simplifica o gerenciamento da rede. SDN provém esses recursos baseado em quatro princípios fundamentais: (i) os planos de controle e encaminhamento da rede são claramente desacoplados, (ii) as decisões de encaminhamento são baseadas em fluxo ao invés de baseadas em destino, (iii) a lógica de encaminhamento é abstraída do hardware para uma camada de software e (iv) um elemento, chamado controlador, é introduzido para coordenar as decisões de encaminhamento. Atualmente m

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Silva, Eduardo Germano da. "A one-class NIDS for SDN-based SCADA systems." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/164632.

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Sistemas elétricos possuem grande influência no desenvolvimento econômico mundial. Dada a importância da energia elétrica para nossa sociedade, os sistemas elétricos frequentemente são alvos de intrusões pela rede causadas pelas mais diversas motivações. Para minimizar ou até mesmo mitigar os efeitos de intrusões pela rede, estão sendo propostos mecanismos que aumentam o nível de segurança dos sistemas elétricos, como novos protocolos de comunicação e normas de padronização. Além disso, os sistemas elétricos estão passando por um intenso processo de modernização, tornando-os altamente dependen

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Stagkopoulou, Alexandra. "Simulative Evaluation of Security Monitoring Systems based on SDN." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-193710.

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Software Defined Networks (SDN) constitute the new communication paradigm ofprogrammable computer networks. By decoupling the control and date plane the networkmanagement is easier and more flexible. However, the new architecture is vulnerable to anumber of security threats, which are able to harm the network. Network monitoringsystems are pivotal in order to protect the network. To this end, the evaluation of a networkmonitoring system is crucial before the deployment of it in the real environment. Networksimulators are the complementary part of the process as they are necessary during theeva

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Alizadeh, Noghani Kyoomars. "Towards Seamless Live Migration in SDN-Based Data Centers." Licentiate thesis, Karlstads universitet, Institutionen för matematik och datavetenskap (from 2013), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-70166.

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Live migration of Virtual Machines (VMs) has significantly improved the flexibility of modern Data Centers (DCs). Ideally, live migration ought to be seamless which in turn raises challenges on how to minimize service disruption and avoid performance degradation. To address these challenges, a comprehensive support from the underlying network is required. However, legacy DC networks fall short to help as they take a reactive approach to live migration procedure. Moreover, the complexity and inflexibility of legacy DC networks make it difficult to deploy, manage, and improve network technologie

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Montero, Herrera Rafael. "Resource optimization in SDN-based inter/intra data centre networks." Doctoral thesis, Universitat Politècnica de Catalunya, 2020. http://hdl.handle.net/10803/669476.

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Upon the demanding requirements brought by next-generation services, current network infrastructures are required to evolve in the way they manage different types of resources at the data layer. To this end, a set of novel technologies have risen to provide the functionalities needed for this evolution, thus representing also a change in the architectural paradigm for future network implementations.Regarding this, the following PhD Thesis presents an analysis on these specific technologies, focusing on the particular case scenario of inter/intra-DCNs. In this way, the introduction of SDN, NFV,

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Arif, Muhammad. "Scalable 5-Tuple Packet Classification in Overlay Network-Based SDN." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-195084.

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Traditional networking paradigm, with destination-based forwarding, provides low processing latency in terms of lookup time and it can scale to huge number of rules for traffic engineering. On the other hand, it lacks flexibility in terms of the packet header fields that can be used to implement the traffic engineering rules. The global view of the network or network abstraction is also lacking here, hence it is harder to program the network. The flexibility and programmability problem are two reasons, among others, that motivate the rise of the Software-Defined Network (SDN) paradigm: higher

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BOERO, LUCA. "Advanced SDN-Based QoS and Security Solutions for Heterogeneous Networks." Doctoral thesis, Università degli studi di Genova, 2019. http://hdl.handle.net/11567/940881.

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This thesis tries to study how SDN can be employed in order to support Quality of Service and how the support of this functionality is fundamental for today networks. Considering, not only the present networks, but also the next generation ones, the importance of the SDN paradigm become manifest as the use of satellite networks, which can be useful considering their broadcasting capabilities. For these reasons, this research focuses its attention on satellite - terrestrial networks and in particular on the use of SDN inside this environment. An important fact to be taken into account is that t

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Davoli, Gianluca. "Intent-based approach to virtualized infrastructure management in SDN/NFV deployments." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13106/.

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Telecommunication networks are meant to be efficient, transparent, and accessible to the broadest possible set of users. However, they are very complex systems, in which a large number of components cooperates, posing a challenge to the desired efficiency, transparency and ease of access. Emerging technological paradigms such as Software Defined Networking (SDN), Network Function Virtualization (NFV) and Cloud Computing open up to a whole new set of possible applications for the infrastructure, or better ways to implement traditional services, but also introduce new environments to be contro

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Zaman, Faisal Ameen. "VN Embedding in SDN-based Metro Optical Network for Multimedia Services." Thesis, Université d'Ottawa / University of Ottawa, 2017. http://hdl.handle.net/10393/35933.

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Currently a growing number of users depend on the Edge Cloud Computing Paradigm in a Metro Optical Network (MON). This has led to increased competition among the Cloud Service Providers (CPs) to supply incentives for the user through guaranteed Quality of Service (QoS). If the CP fails to guarantee the QoS for the accepted request, then the user will move to another CP. Making an informed decision dynamically in such a sensitive situation demands that the CP knows the user's application requirements. The Software Defined Networking (SDN) paradigm enabled the CP to achieve such desired require

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Aravinthan, Gopalasingham. "SDN based service oriented control approach for future radio access networks." Thesis, Evry, Institut national des télécommunications, 2017. http://www.theses.fr/2017TELE0013.

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Le SDN (Software-Defined Networking) émerge comme une nouvelle architecture pour la programmation des réseaux. A l'origine, l'idée du SDN est de déplacer le plan de contrôle à l'extérieur des équipements, et de permettre ainsi un contrôle déporté de l'ensemble depuis une entité logicielle logique nommée "contrôleur". Le principal avantage d'une telle approche est de centraliser donc toute l'intelligence de gestion du réseau dans le contrôleur, qui s'appuie pour cela sur des protocoles standard et assure par ce biais la reprogrammation de la totalité de la partie du réseau sous son contrôle. L'

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Aravinthan, Gopalasingham. "SDN based service oriented control approach for future radio access networks." Electronic Thesis or Diss., Evry, Institut national des télécommunications, 2017. http://www.theses.fr/2017TELE0013.

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Le SDN (Software-Defined Networking) émerge comme une nouvelle architecture pour la programmation des réseaux. A l'origine, l'idée du SDN est de déplacer le plan de contrôle à l'extérieur des équipements, et de permettre ainsi un contrôle déporté de l'ensemble depuis une entité logicielle logique nommée "contrôleur". Le principal avantage d'une telle approche est de centraliser donc toute l'intelligence de gestion du réseau dans le contrôleur, qui s'appuie pour cela sur des protocoles standard et assure par ce biais la reprogrammation de la totalité de la partie du réseau sous son contrôle. L'

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Twayej, Wasan Adnan. "Network performance evaluation for M2M WSN and SDN based on IOT applications." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/17020.

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This thesis introduces different mechanisms for energy efficiency in Wireless Sensor Networks (WSNs) along with maintaining high levels of Network Performance (N.P) with reduced complexity. Firstly, a Machine-to-Machine (M2M) WSN is arranged hierarchically in a fixed infrastructure to support a routing protocol for energy-efficient data transmission among terminal nodes and sink nodes via cluster heads (CHs). A Multi-Level Clustering Multiple Sinks (MLCMS) routing protocol with the IPv6 protocol over Low Wireless Personal Area Networks (6LoWPAN) is proposed to prolong network lifetime. The sim

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Alharbi, Faisal. "SDN-BASED MECHANISMS FOR PROVISIONING QUALITY OF SERVICE TO SELECTED NETWORK FLOWS." UKnowledge, 2018. https://uknowledge.uky.edu/cs_etds/72.

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Despite the huge success and adoption of computer networks in the recent decades, traditional network architecture falls short of some requirements by many applications. One particular shortcoming is the lack of convenient methods for providing quality of service (QoS) guarantee to various network applications. In this dissertation, we explore new Software-Defined Networking (SDN) mechanisms to provision QoS to targeted network flows. Our study contributes to providing QoS support to applications in three aspects. First, we explore using alternative routing paths for selected flows that have Q

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Nguyen, Van-Giang. "Towards SDN/NFV-based Mobile Packet Core : Benefits, Challenges, and Potential Solutions." Licentiate thesis, Karlstads universitet, Institutionen för matematik och datavetenskap (from 2013), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-67132.

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In mobile networks, the mobile core plays a crucial role in providing connectivity between mobile user devices and external packet data networks such as the Internet. Through the years, along with the dramatical changes in radio access networks, the mobile core has also been evolved from being a circuit-based analog telephony system in its first generation (1G) to become a purely packet-based network called the Evolved Packet Core (EPC) in the current generation (4G). In recent years, the explosion of mobile data traffic and devices and the advent of new services have led to the investigation

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BONAFIGLIA, ROBERTO. "Improving the performance of Virtualized Network Services based on NFV and SDN." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2707078.

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Network Functions Virtualisation (NFV) proposes to move all the traditional network appliances, which require dedicated physical machine, onto virtualised environment (e.g,. Virtual Machine). In this way, many of the current physical devices present in the infrastructure are replaced with standard high volume servers, which could be located in Datacenters, at the edge of the network and in the end user premises. This enables a reduction of the required physical resources thanks to the use of virtualization technologies, already used in cloud computing, and allows services to be more dynamic

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Mouawad, Nadia. "SDN based Mobility Management and Quality of Service Provisioning for 5G Vehicular Networks." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASV003.

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Vehicle to Everything (V2X), y compris véhicule à véhicule (V2V) et véhicule à infrastructure (V2I), est la base de communications véhiculaires, où Les messages de sécurité routière active, d’infotainment et de gestion du trafic sont transmis sur des liaisons à bande passante élevée, à faible temps de latence et à haute fiabilité, ouvrant ainsi la voie à une conduite totalement autonome. L’objectif ultime des systèmes de communication V2X de la prochaine génération est de permettre une conduite coopérative sans accident. Pour atteindre cet objectif, le système de communication devra permettre

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Guo, Zheng-Ping, and 郭正屏. "An SDN-Based Hyper File System." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/649p7j.

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碩士<br>國立中央大學<br>資訊工程學系<br>104<br>In this study, we propose a hyper file system, named Reef, which is a combination of the technologies of Software Defined Networking (SDN) and the Distributed File System (DFS). Reef uses the SDN controller to manage network traffic in a centralized way so that the network resources can be allocated more efficiently to reduce network latency, congestion, and bandwidth consumption. Furthermore, Reef uses DFS storage nodes to store data to keep high scalability; operators can increase or decrease storage resources dynamically according to users demands, leading t

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YAN, JHIH-YING, and 顏志穎. "SDN-based Management Framework for IoT." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/cxcbvk.

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碩士<br>國立高雄應用科技大學<br>電子工程系<br>105<br>Due to the popularity of Internet of Things (IoT), the numbers of terminal devices and facilities growth rapidly and the amount of data has skyrocketed. This phenomenon makes traditional networking overwhelmed and leads to increased administration costs, especially for situations demanding high flexibility in the deployment. It becomes more and more challenging in network administration and data management as the scope and coverage of an IoT expands. As a potential solution to this issue, this study proposes a management framework featuring Software-defined

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Yang, Kai-Hsiang, and 楊凱翔. "SDN-enabled Edge-based Refactored EPC." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/3x6j5r.

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碩士<br>國立中正大學<br>資訊工程研究所<br>106<br>As the Internet, mobile devices, and the Internet of Things develop, the number of Internet data transmitted rapidly rises, and the demand for high-quality data transmission increases. Current mobile network service technology is no longer able to support an increasing number of network packet. In order to make the telecommunication network more efficient in handling the huge amount of data, telecom operators have increased many network components to improve the quality of network services. However, in order to reduce the difficulty of managing network compone

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Lin, Ting-Kuan, and 林庭寬. "SDN based Smart Traffic Control Platform." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/26h8a2.

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碩士<br>國立政治大學<br>資訊科學系<br>106<br>With the trend of the rapid development of the Internet of Things (IoT), the related applications are becoming more and more diverse. Gartner predicted that by 2020, there are up to 26 billion devices connected via the IoT devices. Among these, one major part is the automotive IoT devices. The concept of the IoT is to connect every device that can be connected, share information, to achieve the purpose of information sharing, and open up new application areas for data analysis and machine learning. This research is based on the assumption that there are IoT devi

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Tseng, Yen-Lun, and 曾彥綸. "Range Encoding-Based Network Verification in SDN." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/79350506838767085155.

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碩士<br>國立中央大學<br>資訊工程學系<br>103<br>Modern networks are complex and prone to a lots of failures. Existing approach that verify data-plane information operate offline at timescales of seconds to hours, thus cannot detect or prevent failures as they arise. The main challenge here is to achieve extremely low latency during the verification so that network performance is not affected. In this thesis, we present our work, which achieves this goal. Our work find faulty rules issued by SDN applications, and optionally prevent them from reaching the data plane of network and causing anomalous network beh

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HUHG, YI-HAN, and 洪義涵. "SDN-based Multi-Level Traffic Management Mechanism." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/44063820230962494291.

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碩士<br>銘傳大學<br>電腦與通訊工程學系碩士班<br>105<br>This thesis is to design a multi-level traffic management mechanism based on SDN (Software Defined Networking). The traffic management mechanism is composed of three modules, including "Traffic Monitoring Module", "Data Analysis Module" and "Quota Assignment Module". In SDN, multi-level policy and secondary link is used to manage traffic more effectively. Each user will be limited by the multi-level limitations according to the amount of transmission, and then the user who exceeded his quota will be serviced by the secondary link. The secondary link keep th

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CHENG, WEI-KANG, and 鄭瑋剛. "Implementation of PageRank-based SDN Adaptive Routing." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/cr3gqc.

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碩士<br>銘傳大學<br>電腦與通訊工程學系碩士班<br>107<br>As the increasing of network traffic, the links will be congested. In this thesis, we use the characteristic of SDN(Software Defined Networking) to balance the loads. The controller will capture the flow from switches, and use the PageRank algorithm to calculate the popularity of each switch. Based on the popularity, the best path will be re-routed so that the traffic will not go through the popular switch and the loads will be shared by each link.

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Hsu, Ming-Chao, and 許銘洲. "SDN-based Heterogeneous Network Offloading Mechanism and Implementation." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/kppa3d.

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碩士<br>國立交通大學<br>網路工程研究所<br>103<br>Because of the emerging of next-generation mobile networks, mobile phone users are increasing every year. Hence, mobile network bandwidth and quality of experience are important research issues. At a crowed place, users usually face network congestion. One of the reasons is that mobile phones cannot know the base station's load and always select the nearest base station. Therefore, we should dynamically offload users to other non-3GPP networks, such as Wi-Fi system, when the serving base station is congested. It will not only reduce the cellular network's load

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"An Evaluation of SDN Based Network Virtualization Techniques." Master's thesis, 2016. http://hdl.handle.net/2286/R.I.38629.

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abstract: With the software-defined networking trend growing, several network virtualization controllers have been developed in recent years. These controllers, also called network hypervisors, attempt to manage physical SDN based networks so that multiple tenants can safely share the same forwarding plane hardware without risk of being affected by or affecting other tenants. However, many areas remain unexplored by current network hypervisor implementations. This thesis presents and evaluates some of the features offered by network hypervisors, such as full header space availability, isolatio

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Liu, Shen Lun, and 劉昇倫. "Power Adjustment Algorithm for SDN-based Wireless Networks." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/29423346671389938408.

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碩士<br>國立清華大學<br>資訊工程學系<br>104<br>In a high density enterprises wireless networks, high interference resulting from the co-channel cells is the main challenge to be solved. Power level is one of the variable can be tuned to mitigate interference. The total throughput of clients is depend on the Bit-rate between the AP and the client. Adjust power level from AP will affect the Bit-rate to other transmission links. In this thesis, we introduced a SDN-based power adjustment algorithm to mitigate interference in such a high density enterprises wireless networks. To the best of our knowledge, we are

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Yeh, Pin-Wei, and 葉品緯. "A RPi Server Consolidation Scheme Based on SDN." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/12979364849067358454.

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碩士<br>國立臺灣海洋大學<br>資訊工程學系<br>104<br>Relying on low-cost hardware and free software, Raspberry Pi has attracted a lot of teaching and application development recently. To follow these principles, we try to design a server farm which consisting of several RPi servers. There are two major requirements for server consolidation, the first is the client communication needs to be directed to an appropriate server. And, in considering energy saving, an individual server may start or shutdown based on the loading conditions. 　　In traditional network architecture, the forwarding decision and forwarding p

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Lei, Yi-Chih, and 雷逸志. "Multipath Routing in SDN-based Data Center Networks." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/09757755323041122687.

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碩士<br>國立交通大學<br>網路工程研究所<br>102<br>Software-Defined Networking (SDN), which decouples data and control planes, allows network administrators to have a global view of available network resources and to directly manage the network resources with a central controller. More and more data center networks (DCNs) use multi-rooted network topologies which offer multipath capability for each host pair. Traditional single path routing cannot fully utilize the network resources that DCNs provide. Existing multipath routing algorithms cannot select multiple paths in a global view and cannot determine a pro

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Huang, Bo-Sheng, and 黃柏勝. "SDN/NFV Based Moving Target DDoS Defense Mechanism." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/j992av.

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碩士<br>國立中央大學<br>資訊工程學系<br>105<br>With the advancement of technology and popularity of networking devices, network security is facing severe challenges. The rapid development of Internet technology also makes the hacker's attack more mature and diversified. Such as Trojan virus, Denial of Service (DoS) and Distributed Denial of Service (DDoS). One of the most serious security problems is DDoS attack.The Development of Internet technology have made hacker's attack more diversified and can be switched to different DDoS attacks (UDP flooding, ICMP flooding, etc.). If the attacker found that the at

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Hsu, Huai-Wen, and 許懷文. "An SDN Campus Network based on Cloud Architecture." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/j88263.

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Lin, Yu-Syun, and 林育勳. "Network Topology Comparisons in SDN-based Data Centers." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5u2hzu.

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碩士<br>國立中央大學<br>資訊工程學系<br>106<br>With the development of cloud applications, well-known companies, such as Google and Facebook, have focused on the data center based on SDN (Software Defined Networking) to manage their network devices by SDN controllers for processing large amounts of data. In addition, traffic in data center have gradually changed from the client-server (i.e., north-south) traffic pattern to the server-server (i.e., east-west) traffic pattern, which calls for flatten network topologies, such as the Google Fat Tree and the Facebook Leaf Spine. In this study, we compare sev

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Tang, Ching, and 唐敬. "SDN and NFV Enabled Network-Based VPN Services." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2v393j.

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Liu, Ya-han, and 劉亞翰. "A SDN-based Approach for Flow Analysis Attack." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/926qf9.

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碩士<br>國立中央大學<br>資訊工程學系<br>102<br>VoIP (voice over IP) networks are becoming more and more popular in modern society. One of the most important features of a VoIP network is privacy (for VoIP users). Unfortunately, most peer-to-peer VoIP networks neither provide personalization nor guarantee a quantifiable privacy level. In this thesis, we propose a SDN-based approach to prevent flow analysis attack trying to trace user’s identity. Flow analysis attack will trace the flow which specific caller transmits, and try to find possible receiver, threat user’s privacy. We present the latency and number

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Chou, Hsin-Yao, and 周新堯. "SDN-based Network Resource Management with Service Function Chain." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/qrnak9.

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碩士<br>國立中央大學<br>資訊工程學系<br>103<br>In recent years, as growth of the cloud computing technology, more demand for network resources allocation and management of value-added services are appeared. The new concept of network service architecture, Service Function Chain (SFC), has been proposed. The specification of various vendor equipments is unique, prompts the traditional network to change. The purpose of Software-Defined Network (SDN) is to change the physical, complex network into a virtual, programmable and open network architecture. OpenFlow protocol is the most common technology for SDN arc

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Lee, Yi-Jui, and 李易叡. "Load Balancing on SDN-Based Service Chaining using Openstack." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/6fxb9f.

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CHENG, WEI-CHUNG, and 鄭為中. "A SDN-based Qos Mechanism for Wireless Sensor Networks." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/4qkcn6.

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碩士<br>國立臺中教育大學<br>資訊工程學系<br>104<br>Recently, the applications of Internet of Things (IoTs) are growing rapidly. Wireless Sensor Networks (WSN) becomes an emerging technology to provide the low power wireless connectivity for Internet of Things. The IPv6 over low-power wireless personal area networks (6LoWPAN) has been proposed by IETF, which give each WSN device an IPv6 address to connect with the Internet. It is a possibility of congestion of IoTs when a large number of sensors are deployed in the field. However, it is necessary to consider whether the devices of WSNs should be completely in

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Chen, Yan-Ting, and 陳彥廷. "Genetic Algorithm based Load Balancing for SDN Multiple Controllers." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/t5k7v5.

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碩士<br>國立交通大學<br>資訊科學與工程研究所<br>105<br>The software-defined network (SDN), which targets the improvement of network flexibility, is now putting efforts on deploying the multi-controller architecture for scalability. One major issue of the multi-controller architecture is that loads may be not evenly distributed among multiple controllers, thereby resulting in long response time of data traffic. Though there exist several load balancing mechanisms designed for the multi-controller architecture, they have two drawbacks. First, all of them seek to rely on a heuristic that the switch which generates

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Liu, Hung-Wei, and 劉泓緯. "Design and Implementation of SDN-based QoS Management System." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/10620283586847420164.

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碩士<br>國立清華大學<br>資訊工程學系<br>102<br>In previous decades, along with the continuous evolution of the Internet Protocol-based network, numerous Internet programs that have played critical roles in the current technological era are being developed inclusive of interactive applications like VoIP, video conferencing with audio, and video streaming. Nevertheless, the transmission performance and user experience of these instant services that require high bandwidth or low latency may suffer when serious traffic congestion occurs. In approaching this issue, two mechanisms – Integrated Service and Differe

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Hong, Wei-Fan, and 洪維藩. "Application-aware Resource Allocation for SDN-based Cloud Datacenters." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/30178627860023124177.

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碩士<br>國立交通大學<br>資訊科學與工程研究所<br>101<br>In cloud datacenters, since resource requirements change frequently, how to assign and manage resources efficiently while meeting service level agreements (SLAs) of different types of applications is an important research issue. In this paper, we propose an Application-aware Resource Allocation (App-RA) scheme to predict resource requirements and allocate the appropriate number of virtual machines (VMs) for each application in SDN-based cloud datacenters. To the best of our knowledge, the proposed App-RA is the first application-aware resource allocation sc

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Liu, Jyun-Chen, and 劉駿成. "An event-based SDN architecture for network security analysis." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/35829828142809001251.

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碩士<br>國立中正大學<br>資訊工程研究所<br>103<br>Software-defined network (SDN) has attracted much attention in recent years. The central idea of SDN is decoupling the control plane from traditionally proprietary network devices, so that innovations in packet processing can be easily developed and deployed. When a network device encounters the packets in a new flow, it will forward the packet information to a centralized controller, which determines the processing policy on the flow and then instructs the network device to process the packets based on the policy. The SDN architecture is highly flexible and s

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"SDN-based Proactive Defense Mechanism in a Cloud System." Doctoral diss., 2015. http://hdl.handle.net/2286/R.I.34850.

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abstract: Cloud computing is known as a new and powerful computing paradigm. This new generation of network computing model delivers both software and hardware as on-demand resources and various services over the Internet. However, the security concerns prevent users from adopting the cloud-based solutions to fulfill the IT requirement for many business critical computing. Due to the resource-sharing and multi-tenant nature of cloud-based solutions, cloud security is especially the most concern in the Infrastructure as a Service (IaaS). It has been attracting a lot of research and development

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AlZailaa, Alaa Rashed. "Enhanced video transmission using SDN in cloud-based environment." Master's thesis, 2019. http://hdl.handle.net/10773/29663.

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The great technological development of informatics has opened the way for provisioning various services and new online-based entertainment services, which have expanded significantly after the increase in social media applications and the number of users. This significant expansion has posed an additional challenge to Internet Service Providers (ISP)s in terms of management for network, equipment and the efficiency of service delivery. New notions and techniques have been developed to offer innovative solutions such as SDN for network management, virtualization for optimal resource util

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Lin, Fang-Yu, and 林芳伃. "An SDN-based Service Function Chaining and Bypassing Mechanism." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/hu499t.

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Chang, Chun-Wei, and 張君維. "Implementation of Hybrid Network Management System based on SDN." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/68rx4b.

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碩士<br>國立中興大學<br>資訊科學與工程學系<br>106<br>Along with the use of traditional information devices and various mobile devices, modern Internet connections is an indispensable demand, the complexity of the network management also will increase, unregulated or traditional way of network management have been unable to meet the growing network environment. Software-Defined Networking (SDN) provides a new and flexible management function, but a large number of SDN network devices are replaced, which represents an increase in device and management costs. In the environment where SDN and traditional network c

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Chen, Chien-Pang, and 陳建邦. "Machine Learning Based Deployment Strategy of Multiple SDN Controllers." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/4qch88.

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碩士<br>國立臺灣大學<br>電信工程學研究所<br>106<br>Nowadays Software-Defined Networks(SDN) paradigm becomes more popular in computer networking society, therefore it is applied in various networked environments. Although the literature has articulated several benefits of this approach in terms of improved flexibility and performance, the major problem of Out-of-Band mode for Software-Defined Networks (SDN) deployment is the expensive cost of the controller, especially in large network topology and multiple controller deployments. However, the multiple controllers of In-Band mode for Software-Defined Networks

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