Relevant bibliographies by topics / Packet transport networks

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Packet transport networks'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 March 2023

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Journal articles on the topic "Packet transport networks"

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TADIĆ, BOSILJKA, and G. J. RODGERS. "PACKET TRANSPORT ON SCALE-FREE NETWORKS." Advances in Complex Systems 05, no. 04 (December 2002): 445–56. http://dx.doi.org/10.1142/s021952590200064x.

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We introduce a model of information packet transport on networks in which the packets are posted by a given rate and move in parallel according to a local search algorithm. By performing a number of simulations we investigate the major kinetic properties of the transport as a function of the network geometry, the packet input rate and the buffer size. We find long-range correlations in the power spectra of arriving packet density and the network's activity bursts. The packet transit time distribution shows a power-law dependence with average transit time increasing with network size. This implies dynamic queuing on the network, in which many interacting queues are mutually driven by temporally correlated packet streams.
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Lometti, Alberto, Italo Busi, Pietro Grandi, Vincenzo Sestito, and Andrea Paparella. "Packet Transport Technologies for Optical Networks." Fiber and Integrated Optics 27, no. 4 (July 31, 2008): 237–48. http://dx.doi.org/10.1080/01468030802191882.

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Afferton, T. S., R. D. Doverspike, C. R. Kalmanek, and K. K. Ramakrishnan. "Packet-aware transport for metro networks." IEEE Communications Magazine 42, no. 3 (March 2004): 120–27. http://dx.doi.org/10.1109/mcom.2004.1273783.

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Díaz-Cacho Medina, Miguel, Emma Delgado Romero, and Antonio Barreiro Blas. "Control/Network Codesign Basics for IP-Based Shared Networks." Mathematical Problems in Engineering 2011 (2011): 1–23. http://dx.doi.org/10.1155/2011/239512.

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Network and control relationship is an essential aspect in the design of networked control systems (NCSs). The design parameters are mainly centered in the transmission rate and in the packet structure, and some studies have been made to determine how transmission rate affects the network delay and consequently the stability of the control. In Internet, these analysis are mathematically complex due to the large number of different potential scenarios. Using empirical methods, this work deduces that the transmission scheduling problem of an NCS can be solved by designing an appropriate transport protocol, taken into account high and periodic sampling rates. The transport protocol features are determined by simulation, using a new test platform based on the NS2 network simulation suite, to develop control/network codesign solutions. Conclusions of this paper are that the transport features are packet-loss-based flow control, best effort, and fairness, supplemented by a packet priority scheme.
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Cortés-Polo, David, José-Luis González-Sánchez, Francisco-Javier Rodríguez-Pérez, and Javier Carmona-Murillo. "Mobility management in packet transport networks for network convergence." Transactions on Emerging Telecommunications Technologies 26, no. 5 (September 24, 2013): 749–59. http://dx.doi.org/10.1002/ett.2705.

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Lavanya, K., Dr R.Kanthavel, and Dr R.Dhaya. "Efficient Streaming of Video Frames over Heterogeneous Wireless Network." International Journal of Engineering & Technology 7, no. 3.34 (September 1, 2018): 226. http://dx.doi.org/10.14419/ijet.v7i3.34.18970.

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Transferring high quality video stream through a heterogeneous wireless network has many challenges due to the varying data rate and round trip time(RTT) involved in the network and the more stringent quality of service(QoS) requirements of the multimedia application such as on time delivery , minimum delay etc. User datagram protocol (UDP), a connectionless, unreliable transport protocol has been widely used for transferring video frames.UDP cannot guarantee reliable information delivery and may lead to packet loss. The packet loss, increases with time varying bandwidth availability in the heterogeneous wireless networks. Transmission control protocol(TCP) can be an alternate transport layer protocol to provide reliable delivery of video information. But, using TCP for wireless networks has limitations due to misinterpretation of packet loss, frequent link failure, asymmetric link behaviour etc.,. which minimizes the throughput and in turn degrades the quality of the video frames transmitted. This paper analyses an efficient scheme to use Heterogeneous Environment Retransmission algorithm with SCTP (HERTS) to transfer video data in the heterogeneous environment. By using multi-homing and multi-streaming feature of Stream control transmission protocol (SCTP), the packet delivery rate, through put and delay requirements can be optimized. The transport layer model suggested in this paper aims at reducing the occupancy of the retransmitted packets in the link, by using a separate end to end path allotted for retransmission.
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LI, KUN, XIAOFENG GONG, SHUGUANG GUAN, and C. H. LAI. "ANALYSIS OF TRAFFIC FLOW ON COMPLEX NETWORKS." International Journal of Modern Physics B 25, no. 10 (April 20, 2011): 1419–28. http://dx.doi.org/10.1142/s0217979211100655.

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We propose a new routing strategy for controlling packet routing on complex networks. The delivery capability of each node is adopted as a piece of local information to be integrated with the load traffic dynamics to weight the next route. The efficiency of transport on complex network is measured by the network capacity, which is enhanced by distributing the traffic load over the whole network while nodes with high handling ability bear relative heavier traffic burden. By avoiding the packets through hubs and selecting next routes optimally, most travel times become shorter. The simulation results show that the new strategy is not only effective for scale-free networks but also for mixed networks in realistic networks.
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Shelkovoy, D. V., and A. A. Chernikov. "Simulation modeling of packet switching network segment functioning." Issues of radio electronics, no. 12 (December 28, 2019): 75–82. http://dx.doi.org/10.21778/2218-5453-2019-12-75-82.

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The testing results of required channel resource mathematical estimating models for the for serving the proposed multimedia load in packet-switched communication networks are presented in the article. The assessment of the attainable level of quality of service at the level of data packet transportation was carried out by means of simulation modeling of the functioning of a switching node of a communication network. The developed modeling algorithm differs from the existing ones by taking into account the introduced delay for processing each data stream packet arriving at the switching node, depending on the size of the reserved buffer and the channel resource for its maintenance. A joint examination of the probability of packet loss and the introduced delay in the processing of data packets in the border router allows a comprehensive assessment of the quality of service «end to end», which in turn allows you to get more accurate values of the effective data transmitted rate by aggregating flows at the entrance to the transport network.
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Ben Halima, Nadhir, Dzmitry Kliazovich, and Fabrizio Granelli. "Service-Aware Retransmission Control in Cellular Networks." Journal of Computer Systems, Networks, and Communications 2010 (2010): 1–8. http://dx.doi.org/10.1155/2010/256964.

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This paper proposes a service-aware cross-layer approach between application/transport layers on the mobile terminal and link layer on the wireless base station to enable dynamic control on the level of per-packet error protection for multimedia data streams. Specifically, in the context of cellular networks, the proposed scheme enables the mobile terminal to specify to the base station the desired level of Hybrid ARQ (HARQ) protection by using an in-band control feedback channel. Such protection is dynamically adapted on a per-packet basis and depends on the perceptual importance of different packets as well as on the reception history of the flow. Experimental results demonstrate the potential benefits deriving from the proposed strategy either for audio and video real-time streams as well as for TCP-based data transfers.
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Lin, Yi-Bing, Chien-Chao Tseng, and Ming-Hung Wang. "Effects of Transport Network Slicing on 5G Applications." Future Internet 13, no. 3 (March 11, 2021): 69. http://dx.doi.org/10.3390/fi13030069.

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Network slicing is considered a key technology in enabling the underlying 5G mobile network infrastructure to meet diverse service requirements. In this article, we demonstrate how transport network slicing accommodates the various network service requirements of Massive IoT (MIoT), Critical IoT (CIoT), and Mobile Broadband (MBB) applications. Given that most of the research conducted previously to measure 5G network slicing is done through simulations, we utilized SimTalk, an IoT application traffic emulator, to emulate large amounts of realistic traffic patterns in order to study the effects of transport network slicing on IoT and MBB applications. Furthermore, we developed several MIoT, CIoT, and MBB applications that operate sustainably on several campuses and directed both real and emulated traffic into a Programming Protocol-Independent Packet Processors (P4)-based 5G testbed. We then examined the performance in terms of throughput, packet loss, and latency. Our study indicates that applications with different traffic characteristics need different corresponding Committed Information Rate (CIR) ratios. The CIR ratio is the CIR setting for a P4 meter in physical switch hardware over the aggregated data rate of applications of the same type. A low CIR ratio adversely affects the application’s performance because P4 switches will dispatch application packets to the low-priority queue if the packet arrival rate exceeds the CIR setting for the same type of applications. In our testbed, both exemplar MBB applications required a CIR ratio of 140% to achieve, respectively, a near 100% throughput percentage with a 0.0035% loss rate and an approximate 100% throughput percentage with a 0.0017% loss rate. However, the exemplar CIoT and MIoT applications required a CIR ratio of 120% and 100%, respectively, to reach a 100% throughput percentage without any packet loss. With the proper CIR settings for the P4 meters, the proposed transport network slicing mechanism can enforce the committed rates and fulfill the latency and reliability requirements for 5G MIoT, CIoT, and MBB applications in both TCP and UDP.
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Dissertations / Theses on the topic "Packet transport networks"

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Martins, Pedro Miguel Marques. "Optical packet transport networks." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/16320.

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Mestrado em Engenharia Eletrónica e Telecomunicações
In this dissertation is performed a study of packet and circuit switch on optical transport networks, considering network nodes architecture specifications, functionalities and limitations. It is presented an optimization model for nodes dimensioning, considering network traffic requirements and associated costs, using integer linear programming (ILP) tools. To start, an analysis of the client signal is done, before it enters the optical domain, presenting the main protocols, procedures and transport containers for data. When in optical domain, various grooming configurations, considering client signals bit rate are analysed. Considering the node's architecture and transport modes, mathematical models capable to minimize the costs associated with the network nodes are developed for each considered architecture. Results for different simulation scenarios, continuously increasing network traffic are presented and discussed. This document is finalized with the main conclusions driven by techno-economic analysis.
Nesta dissertação é efetuado um estudo sobre comutação de pacotes e circuitos em redes de transporte óticas, considerando especificidades da arquitetura dos nós, funcionalidades e limitações. É apresentado um modelo de optimização para dimensionamento dos nós, considerando requisitos de tráfego da rede e custos associados, utilizando ferramentas de programação linear inteira (PLI). Analisando o sinal de cliente, antes de este entrar no domínio ótico, apresentando os principais protocolos, procedimentos e contentores para transporte de dados. No domínio ótico, diversas configurações de agregação são analisadas, considerando o bit rate dos sinais. Após análise da arquitetura dos nós e modos de transporte, desenvolve- -se um modelo matemático capaz de minimizar os custos associados aos nós da rede, para as arquiteturas consideradas. Os resultados dos diferentes cenários de simulação, com crescimento constante do tráfego são discutidos, finalizando o documento com as principais conclusões obtidas através de análise técnico-económica.
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Kang, Jianghui. "Multi-layer control plane for optical packet switched networks utilising WDM transport." Thesis, University of Essex, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429297.

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Shi, Xiaohan. "A reliable real-time transport protocol for networked control systems over wireless networks." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/60160/1/Xiaohan_Shi_Thesis.pdf.

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Deploying wireless networks in networked control systems (NCSs) has become more and more popular during the last few years. As a typical type of real-time control systems, an NCS is sensitive to long and nondeterministic time delay and packet losses. However, the nature of the wireless channel has the potential to degrade the performance of NCS networks in many aspects, particularly in time delay and packet losses. Transport layer protocols could play an important role in providing both reliable and fast transmission service to fulfill NCS’s real-time transmission requirements. Unfortunately, none of the existing transport protocols, including the Transport Control Protocol (TCP) and the User Datagram Protocol (UDP), was designed for real-time control applications. Moreover, periodic data and sporadic data are two types of real-time data traffic with different priorities in an NCS. Due to the lack of support for prioritized transmission service, the real-time performance for periodic and sporadic data in an NCS network is often degraded significantly, particularly under congested network conditions. To address these problems, a new transport layer protocol called Reliable Real-Time Transport Protocol (RRTTP) is proposed in this thesis. As a UDP-based protocol, RRTTP inherits UDP’s simplicity and fast transmission features. To improve the reliability, a retransmission and an acknowledgement mechanism are designed in RRTTP to compensate for packet losses. They are able to avoid unnecessary retransmission of the out-of-date packets in NCSs, and collisions are unlikely to happen, and small transmission delay can be achieved. Moreover, a prioritized transmission mechanism is also designed in RRTTP to improve the real-time performance of NCS networks under congested traffic conditions. Furthermore, the proposed RRTTP is implemented in the Network Simulator 2 for comprehensive simulations. The simulation results demonstrate that RRTTP outperforms TCP and UDP in terms of real-time transmissions in an NCS over wireless networks.
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Karlsson, Jonas. "Transport-Layer Performance in Wireless Multi-Hop Networks." Doctoral thesis, Karlstads universitet, Institutionen för matematik och datavetenskap, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-15603.

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Wireless communication has seen a tremendous growth in the last decades. Continuing on this trend, wireless multi-hop networks  are nowadays used or planned for use in a multitude of contexts, spanning from Internet access at home to emergency situations. The Transmission Control Protocol (TCP) provides reliable and ordered delivery of a data and is used by major Internet applications such as web browsers, email clients and file transfer programs. TCP traffic is also the dominating traffic type on the Internet. However, TCP performs less than optimal in wireless multi-hop networks due to packet reordering, low link capacity, packet loss and variable delay. In this thesis, we develop novel proposals for enhancing the network and transport layer to improve TCP performance in wireless multi-hop networks. As initial studies, we experimentally evaluate the performance of different TCP variants, with and without mobile nodes. We further evaluate the impact of multi-path routing on TCP performance and propose packet aggregation combined with aggregation aware multi-path forwarding as a means to better utilize the available bandwidth. The last contribution is a novel extension to multi-path TCP to  enable single-homed hosts to fully utilize the network capacity.

Opponent changed. Prof. C. Lindeman from the University of Leipzig was substituted by Prof. Zhang.

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SZABAS, CLAUDIO ALEJANDRO. "FOUNTAIN CODES AND OTHER CHANNEL CODING SCHEMES FOR PROTECTION OF TRANSPORT STREAMS OVER IP NETWORKS WITH PACKET ERASURE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2011. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=17792@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO
COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE EXCELENCIA ACADEMICA
Há, nos dias atuais, uma crescente demanda pelo transporte de video sobre IP, i.e., para distribuição de conteúdo pela Internet, por serviços de IPTV em definição padrão e em alta definição e, mesmo para uso interno nas redes de emissoras tradicionais de televisão, que transportam contribuições de elevada qualidade para seus programas. Em tais aplicações, o conteúdo dos programas é transportado usando MPEG-2 ou MPEG-4, sob a forma de MPEG-2 Transport Streams, encapsulados com protocolos tais como RTP, UDP e IP. As redes IP, que são modelizadas como Redes com Apagamento de Pacotes (PEC) não foram, no entanto, concebidas para o transporte de mídias em tempo real, esbarra portanto em problemas comuns como perdas de pacotes e jitter, gerando perturbações que se refletem na recepção do conteúdo. Os métodos tradicionais para superar estas dificuldades, como por exemplo, os que se baseiam em retransmissões usando protocolos ARQ (Automatic Repeat on Request), não são uma solução eficiente para proteger a transmissão de multimídia em tempo real. A proteção de multimídia transmitida em tempo real via IP recorre, neste caso, aos códigos para canal. Há códigos para canal recomendados em RFC s e Padrões, usados amplamente pelos fabricantes de equipamento. Os modernos Códigos Fontanais, possuem características atraentes para o transporte de conteúdos multimídia em tempo real. Neste trabalho, simulações são realizadas, onde o conteúdo encapsulado em Transport Stream, é protegido com Códigos Fontanais antes do encapsulamento para o envio através da rede. A título de comparação, o experimento é realizado também usando outros códigos para canal recomendados. Para realizar a comparação são usadas medições padronizadas do Transport Stream, medições objetivas como artefatos de blocagem e finalmente uma análise subjetiva do conteúdo recebido é usada. O trabalho conclui com a proposta de um Codificador de canal adaptável para Transport Stream.
There is a growing demand for the transport of video over IP today, i.e., for content distribution over the Internet, IPTV services in Standard and High Definition, or even inside traditional broadcasters networks, transporting broadcast quality contributions to the main program. In such applications, the source encoded MPEG-2 or -4 content is transported in the form of MPEG-2 Transport Streams, encapsulated over network protocols. However, IP networks, which can be modeled as Packet Erasure Networks (PEC), were not originally designed for the transport of real time media. There are problems, such as packet drops and jitter, which generate severe impairments in the content that is decoded at the reception. Traditional methods for overcoming these problems, as for example retransmissions performed by Automatic Repeat Request (ARQ) protocols, are not suitable for real-time multimedia protection. Channel coding is the solution of choice for protecting real-time multimedia over IP. There are channel coding schemes specified in open recommendations and Standards, widely adopted by equipment vendors today. Fountain Codes present very attractive characteristics for the transport of real-time multimedia. In the present work, simulations with a Fountain code, protecting Transport Stream contents prior to network encapsulation, are presented. The experiment if repeated with other channel coding techniques commonly employed today. In order to analyze the decoded contents and obtain comparative results, standardized Transport Stream measurements, objective Blocking Artifacts measurements and subjective analysis of the decoded samples are employed. This work is concluded with the proposal of a Transport Stream Adaptive channel encoder, that is explained in Appendix-B.
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Karlsson, Jonas. "Improving TCP Performance in Wireless Multi-hop Networks : Design of Efficient Forwarding and Packet Processing Techniques." Licentiate thesis, Karlstads universitet, Avdelningen för datavetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-6820.

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Due to the high availability of cheap hardware, wireless multi-hop networks and in particular Wireless Mesh Networks (WMNs) are becoming popular in more and more contexts. For instance, IEEE 802.11 based WMNs have already started to be deployed as means to provide Internet access to rural areas in the developing world. To lower the cost and increase the coverage in such deployments, the wired network is extended with a wireless backbone of fixed mesh routers. With advances in technology and reduction in price comes also the possibility for more powerful wireless nodes, having multiple radios that allow transmitting on different channels in parallel. To be a successful platform for providing general Internet access, wireless multi-hop networks must provide support for common Internet applications. As most of the applications in the Internet today use the Transmission Control Protocol (TCP), TCP performance is crucial. Unfortunately, the design of TCP’s congestion control that made it successful in today’s Internet makes it perform less than optimal in wireless multi-hop networks. This is due to, among others, TCP’s inability to distinguish wireless losses from congestion losses. The current trend for operating system designers is also to focus TCP development on high-speed fixed networks, rather than on wireless multi-hop networks. To enable wireless multi hop networks as a successful platform there is therefore a need to provide good performance using TCP variants commonly deployed in the Internet. In this thesis, we develop novel proposals for the network layer in wireless multi-hop networks to support TCP traffic more efficiently. As an initial study, we experimentally evaluate different TCP variants, with and without mobile nodes, in a MANET context. Our results show that TCP Vegas, which does not provoke packet loss to determine available bandwidth, reduces the stress on the network while still providing the same or slightly increased performance, compared to TCP Newreno. We further propose and evaluate packet aggregation combined with aggregation aware multi-path forwarding to better utilize the available bandwidth. IP layer packet aggregation, where small packets are combined to larger ones before sent to the link layer, has been shown to improve the performance in wireless multi-hop networks for UDP and small packet transfers. Only few studies have been made on the impact of packet aggregation on TCP traffic, despite the fact that TCP traffic constitutes the majority of the Internet traffic. We propose a novel aggregation algorithm that is specifically addressing TCP relevant issues like packet reordering, fairness and TCP timeouts. In a typical WMN scenario, the aggregation algorithm increases TCP performance by up to 70 % and decreases round trip time (RTT) by up to 40 %. A detailed evaluation of packet aggregation in a multi radio setting has shown that a naive combination of multi path routing and packet aggregation can cause valuable aggregation opportunities to be lost. Therefore, we propose a novel combined packet aggregation and aggregation aware forwarding strategy that can reduce delay, packet loss and increase TCP performance by around 30 %.
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Eddy, Wesley M. "Improving Transport Control Protocol Performance With Path Error Rate Information." Ohio University / OhioLINK, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1087844627.

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Le, Quéré Damien. "Conception et étude des performances d'une solution auto-configurable pour les réseaux de transport du futur." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S098.

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Dans cette thèse, nous étudions la solution LOCARN : ''Low Opex & Capex Architecture for Resilient Networks''. LOCARN est une architecture de réseaux paquet alternative conçue dans une optique de simplicité de sa structure et ses mécanismes tout en permettant par sa conception la résilience et l'auto-adaptation des services de transport clients. Compte tenu de la complexification croissante des réseaux de transport opérateurs ces dernières décennies, nous prenons ces réseaux comme cas d'usage privilégié. Dans ce cadre, LOCARN permet une simplification considérable des composants et de leur gestion en comparaison des solutions actuelles des opérateurs – ce qui implique respectivement des réductions de CAPEX et d'OPEX. Dans le travail qui suit, nous présentons LOCARN techniquement et mettons en évidence ses intérêts pour les opérateurs par rapport aux autres technologies de transport. Puis, la question prioritaire étant la capacité de mise à l'échelle de LOCARN pour des réseaux de grandes dimensions, nous étudions cette question en détails ce qui nous permet d'établir que l'architecture est tout à fait capable de passer à l'échelle dans des réseaux de transport réalistes. En outre, pour améliorer les performances nous avons également spécifié et évalué deux améliorations de conception permettant à l'architecture de transporter d'un très grand nombre de services, les résultats obtenus sont très encourageants
In this thesis, we study the LOCARN solution “Low Opex & Capex Architecture for Resilient Networks". LOCARN is an alternative packet network architecture that has been conceived with a special attention to the simplicity of its structure and mechanisms while allowing by design the resiliency and the self-adaptation of clients transportation services. Considering the growing complexification of operators transport networks during the last decades, we consider these latter as the privileged use case. In such a context, LOCARN would allow a drastical simplification of devices and their operation compared to common operator solutions – this involves respectively reductions of CAPEX and OPEX. In this work, we first present LOCARN technically and we bring out its interests for operators beside other transport technologies. Then, since the primary issue of LOCARN is it scalability for large networks, we study this point in details which allow us to establish that the architecture is altogether capable to scale in realistics transport networks. Moreover, to increase the performances we specified two design improvements allowing the architecture to transport a huge amount of clients, the obtained results are very encouraging
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Underhill, K. "Network analysis for modelling transport in packed bed reactors." Thesis, University of Leeds, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.382920.

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Gui, Li. "A transport protocol for real-time applications in wireless networked control systems." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/45460/1/Li_Gui_Thesis.pdf.

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A Networked Control System (NCS) is a feedback-driven control system wherein the control loops are closed through a real-time network. Control and feedback signals in an NCS are exchanged among the system’s components in the form of information packets via the network. Nowadays, wireless technologies such as IEEE802.11 are being introduced to modern NCSs as they offer better scalability, larger bandwidth and lower costs. However, this type of network is not designed for NCSs because it introduces a large amount of dropped data, and unpredictable and long transmission latencies due to the characteristics of wireless channels, which are not acceptable for real-time control systems. Real-time control is a class of time-critical application which requires lossless data transmission, small and deterministic delays and jitter. For a real-time control system, network-introduced problems may degrade the system’s performance significantly or even cause system instability. It is therefore important to develop solutions to satisfy real-time requirements in terms of delays, jitter and data losses, and guarantee high levels of performance for time-critical communications in Wireless Networked Control Systems (WNCSs). To improve or even guarantee real-time performance in wireless control systems, this thesis presents several network layout strategies and a new transport layer protocol. Firstly, real-time performances in regard to data transmission delays and reliability of IEEE 802.11b-based UDP/IP NCSs are evaluated through simulations. After analysis of the simulation results, some network layout strategies are presented to achieve relatively small and deterministic network-introduced latencies and reduce data loss rates. These are effective in providing better network performance without performance degradation of other services. After the investigation into the layout strategies, the thesis presents a new transport protocol which is more effcient than UDP and TCP for guaranteeing reliable and time-critical communications in WNCSs. From the networking perspective, introducing appropriate communication schemes, modifying existing network protocols and devising new protocols, have been the most effective and popular ways to improve or even guarantee real-time performance to a certain extent. Most previously proposed schemes and protocols were designed for real-time multimedia communication and they are not suitable for real-time control systems. Therefore, devising a new network protocol that is able to satisfy real-time requirements in WNCSs is the main objective of this research project. The Conditional Retransmission Enabled Transport Protocol (CRETP) is a new network protocol presented in this thesis. Retransmitting unacknowledged data packets is effective in compensating for data losses. However, every data packet in realtime control systems has a deadline and data is assumed invalid or even harmful when its deadline expires. CRETP performs data retransmission only in the case that data is still valid, which guarantees data timeliness and saves memory and network resources. A trade-off between delivery reliability, transmission latency and network resources can be achieved by the conditional retransmission mechanism. Evaluation of protocol performance was conducted through extensive simulations. Comparative studies between CRETP, UDP and TCP were also performed. These results showed that CRETP significantly: 1). improved reliability of communication, 2). guaranteed validity of received data, 3). reduced transmission latency to an acceptable value, and 4). made delays relatively deterministic and predictable. Furthermore, CRETP achieved the best overall performance in comparative studies which makes it the most suitable transport protocol among the three for real-time communications in a WNCS.
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Books on the topic "Packet transport networks"

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Fen zu chuan song wang. Beijing Shi: Ren min you dian chu ban she, 2009.

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Thie, Johnson. Optimal erasure protection assignment for scalable data: Protecting scalably compressed images and videos against erasure over packet-based networks. Köln: Lambert Academic Pub., 2009.

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Joseph, Vinod, and Srinivas Mulugu. Network Convergence: Ethernet Applications and Next Generation Packet Transport Architectures. Elsevier Science & Technology Books, 2013.

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Joseph, Vinod, and Srinivas Mulugu. Network Convergence: Ethernet Applications and Next Generation Packet Transport Architectures. Elsevier Science & Technology Books, 2013.

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Datta, Debasish. Optical Networks. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198834229.001.0001.

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This book presents an in-depth deliberation on optical networks in four parts, capturing the past, present, and ensuing developments in the field. Part I has two chapters presenting an overview of optical networks and the enabling technologies. Part II has three chapters dealing with the single-wavelength optical networks: optical LANs/MANs, optical access networks using passive optical network architecture, SONET/SDH, optical transport network and resilient packet ring. Part III consists of four chapters on WDM-based optical networks, including WDM-based local/metropolitan networks (LANs/MANs) using single and multihop architectures over passive-star couplers, WDM/TWDM access networks as an extension of PONs with WDM transmission, WDM metro ring networks covering circuit-switched (using point-to-point WDM and wavelength-routed transmission) plus packet-switched architectures and WDM long-haul backbone networks presenting the offline and online design methodologies using wavelength-routed transmission. Part IV deals with some selected topics in six chapters. The first deals with transmission impairments and power-consumption issues in optical networks, while the next three chapters deal with the survivable optical networks, network control and management techniques, including GMPLS, ASON, and SDN/SDON, and datacenter networks using electrical, optical, and hybrid switching techniques. The final two chapters present elastic optical networks using flexible grid for better utilization of the optical-fiber spectrum and optical packet and burst-switched networks. The three appendices present the basics of the linear programming techniques, noise processes encountered in the optical communication systems, and the fundamentals of queuing theory and its applications in telecommunication networks. (238 words)
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Novell network transports: Services 4.1 for AIX : AIX version 4.3. [United States?: International Business Machines Corp.], 1997.

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Cohen, Margaret, ed. A Cultural History of the Sea in the Age of Empire. Bloomsbury Publishing Plc, 2021. http://dx.doi.org/10.5040/9781474207218.

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Across the 19th century, maritime globalization expanded at a hitherto unimaginable pace, transforming transport and communications over the seas into oceanic networks at a planetary scale. These networks shaped culture in its most expansive sense, affecting seafaring, warfare, empire, commerce, communications, passenger travel, leisure and science. Authors recover the sea experience of people and groups entangled with and yet neglected in an earlier generation of maritime history focused on conquest, empire, and knowledge. Thus, across a century when Britannia nominally ruled the waves, military control emerges as both opportunistic, harboring slavers, as well as partial, giving agency to mutineers and enslaved crew members, including on the Royal Navy’s own fleet; the wreck of Arctic exploring voyages such as the Erebus and the Terror takes readers to PanInuit exploration over sea ice around the Arctic circle; colonial and mercantile transport in the Indian Ocean reveals the role of lascars, the seafarers of color who for centuries had practiced these waters; on the coasts of industrial nations, the professional establishment of marine sciences depends on the pathbreaking contributions of female amateur naturalists. As part of its revisionary aim, this volume gives voice to the physical environment. Thus, we discover contrasting perspectives about this environment under threat today of European mariners for whom it was deadly and treacherous, and for maritime Aborigines who lived in its shelter. Considering literature and art as well as history, authors further trace how the paradoxes of sea practice shape some of the most memorable ocean fantasies of the Western tradition, fostering both a celebration of work and technology, and a preservation of secular magic in a disenchanted world.
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Book chapters on the topic "Packet transport networks"

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Raychaudhuri, D. "Video and Multimedia Transport Over Packet Media." In Worldwide Advances in Communication Networks, 9–18. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4899-1355-5_2.

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Bregni, Stefano, Giacomo Guerra, and Achille Pattavina. "Optical Packet Switching for IP-over-WDM Transport Networks." In Lecture Notes in Computer Science, 10–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-45400-4_2.

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Goh, K. I., B. Kahng, and D. Kim. "Packet Transport and Load Distribution in Scale-Free Networks." In Traffic and Granular Flow’01, 365–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-10583-2_37.

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Alekseev, Igor V., and Valery A. Sokolov. "ARTCP: Efficient Algorithm for Transport Protocol for Packet Switched Networks." In Lecture Notes in Computer Science, 159–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-44743-1_15.

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Kujawski, Bernard, G. J. Rodgers, and Bosiljka Tadić. "Local Information Based Algorithms for Packet Transport in Complex Networks." In Computational Science – ICCS 2006, 1024–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11758532_140.

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Dzogovic, Bruno, Bernardo Santos, Boning Feng, Van Thuan Do, Niels Jacot, and Thanh Van Do. "Optimizing 5G VPN+ Transport Networks with Vector Packet Processing and FPGA Cryptographic Offloading." In Mobile Web and Intelligent Information Systems, 85–98. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-83164-6_7.

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Chaly, Dmitry J., and Valery A. Sokolov. "An Extensible Coloured Petri Net Model of a Transport Protocol for Packet Switched Networks." In Lecture Notes in Computer Science, 66–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-45145-7_6.

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Lu, ZhiXin, LianYu Fu, YiZhao Liu, and XiYang Yin. "Resource Modeling of Power Communication Packet Optical Transport Network." In Lecture Notes in Computer Science, 14–25. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-97774-0_2.

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Zeng, Lingchuan, Yabo Yuan, Bingli Guo, Bo Yin, Xiaochun Lu, Yan Bai, and Ting Liu. "Architecture of Space-Based Packet Transport Network Based on Laser Crosslinks." In China Satellite Navigation Conference (CSNC) 2020 Proceedings: Volume III, 154–63. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-3715-8_15.

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Salvador, Marcos Rogério, Sonia Heemstra de Groot, and Diptish Dey. "A Preemptable Slotted Access Protocol to Transport Variable Size Packets in All-Optical Ring Lans/Mans." In Next Generation Optical Network Design and Modelling, 35–49. New York, NY: Springer US, 2003. http://dx.doi.org/10.1007/978-0-387-35670-9_3.

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Conference papers on the topic "Packet transport networks"

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Addeo, Christian, and Italo Busi. "Protection switching in Packet Transport Rings." In 2012 XVth International Telecommunications Network Strategy and Planning Symposium (NETWORKS). IEEE, 2012. http://dx.doi.org/10.1109/netwks.2012.6381702.

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Bruckman, Leon, and E. Bert Basch. "OAM in Packet Transport Networks." In OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference. IEEE, 2007. http://dx.doi.org/10.1109/ofc.2007.4348527.

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Kralevska, Katina, Harald Overby, and Danilo Gligoroski. "Coded Packet Transport for Optical Packet/Burst Switched Networks." In GLOBECOM 2015 - 2015 IEEE Global Communications Conference. IEEE, 2014. http://dx.doi.org/10.1109/glocom.2014.7417372.

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Kralevska, Katina, Harald Overby, and Danilo Gligoroski. "Coded Packet Transport for Optical Packet/Burst Switched Networks." In GLOBECOM 2015 - 2015 IEEE Global Communications Conference. IEEE, 2015. http://dx.doi.org/10.1109/glocom.2015.7417372.

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Nagarajan, R., Y. T. Wang, and M. Qureshi. "Reliable packet transport technologies for MPLS networks." In 11th International Telecommunications Network Strategy and Planning Symposium. IEEE, 2004. http://dx.doi.org/10.1109/netwks.2004.241086.

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Doverspike, R., K. K. Ramakrishnan, J. Wei, J. Pastor, and C. Kalmanek. "Service-driven networks for packet-aware transport." In 2005 Optical Fiber Communications Conference Technical Digest. IEEE, 2005. http://dx.doi.org/10.1109/ofc.2005.193013.

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Lometti, Alberto. "Transport-MPLS (T-MPLS): an enabling technology for packet transport networks." In 2006 32nd European Conference on Optical Communications - (ECOC 2006). IEEE, 2006. http://dx.doi.org/10.1109/ecoc.2006.4801030.

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Lee, S. H., and L. T. Wu. "Variable Rate Video Transport In Broadband Packet Networks." In Visual Communications and Image Processing '88: Third in a Series, edited by T. Russell Hsing. SPIE, 1988. http://dx.doi.org/10.1117/12.969047.

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Roth, Moran, and Gady Rosenfeld. "Achieving 100G Transmission Rates in Packet Transport Networks." In 2008 Conference on Optical Fiber Communication - OFC 2008 Collocated National Fiber Optic Engineers. IEEE, 2008. http://dx.doi.org/10.1109/ofc.2008.4528265.

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Sunan Han, D. O'Connor, W. Yue, and P. Havala. "Next-generation packet-based transport networks economic study." In OFCNFOEC 2006. 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference. IEEE, 2006. http://dx.doi.org/10.1109/ofc.2006.215675.

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Reports on the topic "Packet transport networks"

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Frost, D., and S. Bryant, eds. A Packet Loss and Delay Measurement Profile for MPLS-Based Transport Networks. RFC Editor, September 2011. http://dx.doi.org/10.17487/rfc6375.

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Chen, Yongzhou, Ammar Tahir, and Radhika Mittal. Controlling Congestion via In-Network Content Adaptation. Illinois Center for Transportation, September 2022. http://dx.doi.org/10.36501/0197-9191/22-018.

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Realizing that it is inherently difficult to match precisely the sending rates at the endhost with the available capacity on dynamic cellular links, we built a system, Octopus, that sends real-time data streams over cellular networks using an imprecise controller (that errs on the side of overestimating network capacity) and then drops appropriate packets in the cellular-network buffers to match the actual capacity. We designed parameterized primitives for implementing the packet-dropping logic, which the applications at the endhost can configure differently to express various content-adaptation policies. Octopus transport encodes the app-specified parameters in packet header fields, which the routers can parse to execute the desired dropping behavior. Our evaluation shows how real-time applications involving standard and volumetric videos can be designed to exploit Octopus for various requirements and achieve a performance that is 1.5 to 18 times better than state-of-the-art schemes.
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Filsfils, C., U. Drafz, V. Kompella, J. Regan, and S. Amante. Flow-Aware Transport of Pseudowires over an MPLS Packet Switched Network. Edited by S. Bryant. RFC Editor, November 2011. http://dx.doi.org/10.17487/rfc6391.

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Chimiak, W. A Comment on Packet Video Remote Conferencing and the Transport/Network Layers. RFC Editor, April 1993. http://dx.doi.org/10.17487/rfc1453.

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