Opportunistic Routing And Network Coding In Multi Hop Wireless Mesh Networks

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Opportunistic Routing and Network Coding in Multi-hop Wireless Mesh Networks

Author : Chen Zhang
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (131 download)

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Book Synopsis Opportunistic Routing and Network Coding in Multi-hop Wireless Mesh Networks by : Chen Zhang

Download or read book Opportunistic Routing and Network Coding in Multi-hop Wireless Mesh Networks written by Chen Zhang and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid advancements in communication and networking technologies boost the capacity of wireless networks. Multi-hop wireless networks are extremely exciting and rapidly developing areas and have been receiving an increasing amount of attention by researchers. Due to the limited transmission range of the nodes, end-to-end nodes may situate beyond direct radio transmission ranges. Intermediate nodes are required to forward data in order to enable the communication between nodes that are far apart. Routing in such networks is a critical issue. Opportunistic routing has been proposed to increase the network performance by utilizing the broadcast nature of wireless media. Unlike traditional routing, the forwarder in opportunistic routing broadcasts date packets before the selection of the next hop. Therefore, opportunistic routing can consider multiple downstream nodes as potential candidate nodes to forward data packets instead of using a dedicated next hop. Instead of simply forwarding received packets, network coding allows intermediate nodes to combine all received packets into one or more coded packets. It can further improve network throughput by increasing the transmission robustness and efficiency. In this dissertation, we will study the fundamental components, related issues and associated challenges about opportunistic routing and network coding in multi-hop wireless networks. Firstly, we focus on the performance analysis of opportunistic routing by the Discrete Time Markov Chain (DTMC). Our study demonstrates how to map packet transmissions in the network with state transitions in a Markov chain. We will consider pipelined data transfer and evaluate opportunistic routing in different wireless networks in terms of expected number of transmissions and time slots. Secondly, we will propose a regional forwarding schedule to optimize the coordination of opportunistic routing. In our coordination algorithm, the forwarding schedule is limited to the range of the transmitting node rather than among the entire set of forwarders. With such an algorithm, our proposal can increase the throughput by deeper pipelined transmissions. Thirdly, we will propose a mechanism to support TCP with opportunistic routing and network coding, which are rarely incorporated with TCP because the frequent occurrences of out-of-order arrivals in opportunistic routing and long decoding delay in network coding overpower TCP congestion control. Our solution completes the control feedback loop of TCP by creating a bridge between the sender and the receiver. The simulation result shows that our protocol significantly outperforms TCP/IP in terms of network throughput in different topologies of wireless networks.

Multihop Wireless Networks

Author : Kai Zeng
Publisher : John Wiley & Sons
ISBN 13 : 1119974291
Total Pages : 211 pages
Book Rating : 4.1/5 (199 download)

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Book Synopsis Multihop Wireless Networks by : Kai Zeng

Download or read book Multihop Wireless Networks written by Kai Zeng and published by John Wiley & Sons. This book was released on 2011-07-13 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an introduction to opportunistic routing an emerging technology designed to improve the packet forwarding reliability, network capacity and energy efficiency of multihop wireless networks This book presents a comprehensive background to the technological challenges lying behind opportunistic routing. The authors cover many fundamental research issues for this new concept, including the basic principles, performance limit and performance improvement of opportunistic routing compared to traditional routing, energy efficiency and distributed opportunistic routing protocol design, geographic opportunistic routing, opportunistic broadcasting, and security issues associated with opportunistic routing, etc. Furthermore, the authors discuss technologies such as multi-rate, multi-channel, multi-radio wireless communications, energy detection, channel measurement, etc. The book brings together all the new results on this topic in a systematic, coherent and unified presentation and provides a much needed comprehensive introduction to this topic. Key Features: Addresses opportunistic routing, an emerging technology designed to improve the packet forwarding reliability, network capacity and energy efficiency of multihop wireless networks Discusses the technological challenges lying behind this new technology, and covers a wide range of practical implementation issues Explores many fundamental research issues for this new concept, including the basic principles of opportunistic routing, performance limits and performance improvement, and compares them to traditional routing (e.g. energy efficiency and distributed opportunistic routing protocol design, broadcasting, and security issues) Covers technologies such as multi-rate, multi-channel, multi-radio wireless communications, energy detection, channel measurement, etc. This book provides an invaluable reference for researchers working in the field of wireless networks and wireless communications, and Wireless professionals. Graduate students will also find this book of interest.

Opportunistic Networks

Author : Khaleel Ahmad
Publisher : CRC Press
ISBN 13 : 0429842694
Total Pages : 334 pages
Book Rating : 4.4/5 (298 download)

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Book Synopsis Opportunistic Networks by : Khaleel Ahmad

Download or read book Opportunistic Networks written by Khaleel Ahmad and published by CRC Press. This book was released on 2018-10-03 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Opportunistic networks allow mobile users to share information without any network infrastructure.This book is suitable for both undergraduates and postgraduates as it discusses various aspects of opportunistic networking including, foundations of ad hoc network; taxonomy of mobility models, etc.

Network Coding

Author : Somayeh Kafaie
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (132 download)

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Book Synopsis Network Coding by : Somayeh Kafaie

Download or read book Network Coding written by Somayeh Kafaie and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Network coding is an innovative idea to boost the capacity of wireless networks. However, there are not enough analytical studies on throughput and end-to-end delay of network coding in multi-hop wireless mesh network that incorporates the specifications of IEEE 802.11 Distributed Coordination Function. In this dissertation, we utilize queuing theory to propose an analytical framework for bidirectional unicast flows in multi-hop wireless mesh networks. We study the throughput and end-to-end delay of inter-flow network coding under the IEEE 802.11 standard with CSMA/CA random access and exponential back-o↵ time considering clock freezing and virtual carrier sensing, and formulate several parameters such as the probability of successful transmission in terms of bit error rate and collision probability, waiting time of packets at nodes, and retransmission mechanism. Our model uses a multi-class queuing network with stable queues, where coded packets have a non-preemptive higher priority over native packets, and forwarding of native packets is not delayed if no coding opportunities are available. The accuracy of our analytical model is verified using computer simulations. Furthermore, while inter-flow network coding is proposed to help wireless networks approach the maximum capacity, the majority of research conducted in this area is yet to fully utilize the broadcast nature of wireless networks, and to perform e↵ectively under poor channel quality. This vulnerability is mostly caused by assuming fixed route between the source and destination that every packet should travel through. This assumption not only limits coding opportunities, but can also cause bu↵er overflow at some specific intermediate nodes. Although some studies considered scattering of the flows dynamically in the network, they still face some limitations. This dissertation explains pros and cons of some prominent research in network coding and proposes a Flexible and Opportunistic Network Coding scheme (FlexONC) as a solution to such issues. Moreover, this research discovers that the conditions used in previous studies to combine packets of di↵erent flows are overly optimistic and would a↵ect the network performance adversarially. Therefore, we provide a more accurate set of rules for packet encoding. The experimental results show that FlexONC outperforms previous methods especially in networks with high bit error rates, by better utilizing redundant packets permeating the network, and benefiting from precise coding conditions.

Multi-hop Routing for Wireless Mesh Networks

Author : Abhijeet Bhorkar
Publisher :
ISBN 13 : 9781267259707
Total Pages : 138 pages
Book Rating : 4.2/5 (597 download)

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Book Synopsis Multi-hop Routing for Wireless Mesh Networks by : Abhijeet Bhorkar

Download or read book Multi-hop Routing for Wireless Mesh Networks written by Abhijeet Bhorkar and published by . This book was released on 2012 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless Mesh networks have the potential to provide inexpensive and quick access to the internet for military communications, surveillance, education, healthcare and disaster management. This work caters to the growing high-bandwidth demands by providing low delay and high throughput by designing efficient, robust routing algorithms for wireless mesh networks. Chapters 2 and 3 of this dissertation describe adaptive routing algorithms that opportunistically route the packets in the absence of reliable knowledge about channel statistics and the network model. We design two adaptive routing algorithms, Distributed Opportunistic Routing (d-AdaptOR) and No Regret Routing (NRR), which minimize the expected number of transmissions and thus improving the throughput. The remainder of the dissertation concerns with the design routing algorithms to avoid congestion in the network. In Chapter 4, we describe a Distributed Opportunistic Routing algorithm with Congestion Diversity (ORCD) which employs receiver diversity and minimizes end-end delay. In Chapter 5, we present the Congestion Diversity Protocol (CDP), a distributed routing protocol for 802.11-based multi-hop wireless networks that combines important aspects of shortest-path and back-pressure routing to achieve improved end-end delay performance. This work reports on a practical (hardware and software) implementation of CDP in an indoor Wi-Fi testbed.

The Application of Network Coding to Multicast Routing in Wireless Networks

Author : Michael Vincent Jennings
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (191 download)

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Book Synopsis The Application of Network Coding to Multicast Routing in Wireless Networks by : Michael Vincent Jennings

Download or read book The Application of Network Coding to Multicast Routing in Wireless Networks written by Michael Vincent Jennings and published by . This book was released on 2007 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis considers the application of network coding and opportunistic routing to improve the performance of multicast flows in wireless networks. Network coding allows routers to randomly mix packets before forwarding them. This randomness ensures that routers that hear the same transmission are unlikely to forward the same packets, which permits routers to exploit wireless opportunism with minimal coordination. By mixing packets, network coding is able to reduce the number of transmissions necessary to convey packets to multiple receivers, which can lead to a large increase in throughput for multicast traffic. We discuss the design of a multicast enabled variant of MORE, a network coding based protocol for file transfer in wireless mesh networks, and evaluate this extension, which we call MORE-M, in a 20-node indoor wireless testbed. We compare MORE-M to a wireless multicast protocol that takes an approach similar to that of wired multicast by using the ETX metric to build unicast routing trees. We also compare MORE-M to a multicast enabled variant of the ExOR routing protocol. Experiments show that MORE-M's gains increase with the number of destinations, and are 35-200% greater than that of ExOR. We then consider the problem of video streaming in a wireless local area network for applications such as video conferencing. A network coding based protocol that uses opportunistic receptions at clients is proposed. We evaluate the design in our testbed and demonstrate that the use of network coding and, in particular, the use of wireless opportunism increase the quality of the video stream.

Integration of Network Coding, Spatial Diversity and Opportunistic Routing/forwarding in Wireless Mesh Networks

Author : Mohammad Rizwan Khan
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Integration of Network Coding, Spatial Diversity and Opportunistic Routing/forwarding in Wireless Mesh Networks by : Mohammad Rizwan Khan

Download or read book Integration of Network Coding, Spatial Diversity and Opportunistic Routing/forwarding in Wireless Mesh Networks written by Mohammad Rizwan Khan and published by . This book was released on 2017 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

On Throughput Efficiency of Cooperative Opportunistic Routing in Multi-hop Wireless Mesh Networks

Author : 陳沛汝
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (858 download)

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Book Synopsis On Throughput Efficiency of Cooperative Opportunistic Routing in Multi-hop Wireless Mesh Networks by : 陳沛汝

Download or read book On Throughput Efficiency of Cooperative Opportunistic Routing in Multi-hop Wireless Mesh Networks written by 陳沛汝 and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Network Coding at Different Layers in Wireless Networks

Author : Yang Qin
Publisher : Springer
ISBN 13 : 3319297708
Total Pages : 187 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Network Coding at Different Layers in Wireless Networks by : Yang Qin

Download or read book Network Coding at Different Layers in Wireless Networks written by Yang Qin and published by Springer. This book was released on 2016-05-14 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on how to apply network coding at different layers in wireless networks – including MAC, routing, and TCP – with special focus on cognitive radio networks. It discusses how to select parameters in network coding (e.g., coding field, number of packets involved, redundant information ration) in order to be suitable for the varying wireless environments. The author explores how to deploy network coding in MAC to improve network performance and examine joint network coding with opportunistic routing to improve the successful rate of routing. In regards to TCP and network coding, the author considers transport layer protocol working with network coding to overcome the transmission error rate, particularly with how to use the ACK feedback of TCP to enhance the efficiency of network coding. The book pertains to researchers and postgraduate students, especially whose interests are in opportunistic routing and TCP in cognitive radio networks.

Routing for Wireless Multi-Hop Networks

Author : Sherin Abdel Hamid
Publisher : Springer Science & Business Media
ISBN 13 : 1461463572
Total Pages : 81 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Routing for Wireless Multi-Hop Networks by : Sherin Abdel Hamid

Download or read book Routing for Wireless Multi-Hop Networks written by Sherin Abdel Hamid and published by Springer Science & Business Media. This book was released on 2013-01-18 with total page 81 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this brief is to identify what unifies and what distinguishes the routing functions in four wireless multi-hop network paradigms. The brief introduces a generic routing model that can be used as a foundation of wireless multi-hop routing protocol analysis and design. It demonstrates that such model can be adopted by any wireless multi-hop routing protocol. Also presented is a glimpse of the ideal wireless multi-hop routing protocol along with several open issues.

Routing in Opportunistic Networks

Author : Isaac Woungang
Publisher : Springer Science & Business Media
ISBN 13 : 1461435145
Total Pages : 421 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Routing in Opportunistic Networks by : Isaac Woungang

Download or read book Routing in Opportunistic Networks written by Isaac Woungang and published by Springer Science & Business Media. This book was released on 2013-09-10 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Routing in Opportunistic Networks focuses on the basics of opportunistic networks, modeling and communication in opportunistic networks, routing in opportunistic networks, and collaboration and cooperation in opportunistic networks. The editors will cover such topics as mobility characterization and discovery in opportunistic networks, scheduling and medium access control in opportunistic networks as well as testbed, tools, and measurements for opportunistic networks.

Network Coding for Quality of Service in Wireless Multi-hop Networks

Author : Youghourta Benfattoum
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (835 download)

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Book Synopsis Network Coding for Quality of Service in Wireless Multi-hop Networks by : Youghourta Benfattoum

Download or read book Network Coding for Quality of Service in Wireless Multi-hop Networks written by Youghourta Benfattoum and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis we deal with the application of Network Coding to guarantee the Quality of Service (QoS) for wireless multi-hop networks. Since the medium is shared, wireless networks suffer from the negative interference impact on the bandwidth. It is thus interesting to propose a Network Coding based approach that takes into account this interference during the routing process. In this context, we first propose an algorithm minimizing the interference impact for unicast flows while respecting their required bandwidth. Then, we combine it with Network Coding to increase the number of admitted flows and with Topology Control to still improve the interference management. We show by simulation the benefit of combining the three fields: Network Coding, interference consideration and Topology Control. We also deal with delay management for multicast flows and use the Generation-Based Network Coding (GBNC) that combines the packets per blocks. Most of the works on GBNC consider a fixed generation size. Because of the network state variations, the delay of decoding and recovering a block of packets can vary accordingly degrading the QoS. To solve this problem, we propose a network-and content-aware method that adjusts the generation size dynamically to respect a certain decoding delay. We also enhance it to overcome the issue of acknowledgement loss. We then propose to apply our approach in a Home Area Network for Live TV and video streaming. Our solution provides QoS and Quality of Experience for the end user with no additional equipment. Finally, we focus on a more theoretical work in which we present a new Butterfly-based network for multi-source multi-destination flows. We characterize the source node buffer size using the queuing theory and show that it matches the simulation results.

Cross-layer Design for Wireless Mesh Networks with Advanced Physical and Network Layer Techniques

Author : Mina Yazdanpanah
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Cross-layer Design for Wireless Mesh Networks with Advanced Physical and Network Layer Techniques by : Mina Yazdanpanah

Download or read book Cross-layer Design for Wireless Mesh Networks with Advanced Physical and Network Layer Techniques written by Mina Yazdanpanah and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Practical Opportunistic Routing in Wireless Mesh Networks

Author : Wei Hu
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (859 download)

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Book Synopsis Practical Opportunistic Routing in Wireless Mesh Networks by : Wei Hu

Download or read book Practical Opportunistic Routing in Wireless Mesh Networks written by Wei Hu and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Wireless mesh network is usually used to provide Internet access to communities or citywide. Opportunistic Routing (OR) exploits overheard packets in a wireless network and has been proven to be effective for wireless mesh networks. However, the existing OR protocols cannot meet all the requirements for high-speed, multi-rate wireless mesh networks, including- running on commodity Wi-Fi interface, low complexity, supporting multiple link layer data rates, and exploiting partial packets. We propose POR, a new Opportunistic Routing protocol that is the first OR protocol to meet all the critical requirements in practical wireless mesh networks. POR forwards individual packets and does not forward a packet if it has been already received correctly by the downstream nodes according to the feedback sent by the downstream nodes. The individual packet forwarding of POR makes it more friendly with popular protocols such as TCP than existing opportunistic routing protocols that requires packet batching. POR incorporates a block-based partial packet recovery scheme by retransmitting corrupted parts of the packet. POR employs a multi-hop link rate adaptation scheme to adapt to the wireless channel conditions by selectively probing rates that are potentially better with small dummy packets. POR also employs a new path metric that considers the cost in sending feedbacks as well as the capability of the nodes to select appropriate rates to track the channel conditions. POR is a software-only solution. We implement POR within the Click modular routing and our experiments in a 16-node wireless testbed confirm that POR achieves significantly better performance than the compared protocols. We run TCP on top of POR and results show that POR can achieve higher TCP throughput than the compared protocol, which is the first demonstration of TCP on top of any OR protocols.

Opportunistic Network Coding in Wireless Mesh Networks

Author : Kemal Alič
Publisher :
ISBN 13 :
Total Pages : 87 pages
Book Rating : 4.:/5 (951 download)

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Book Synopsis Opportunistic Network Coding in Wireless Mesh Networks by : Kemal Alič

Download or read book Opportunistic Network Coding in Wireless Mesh Networks written by Kemal Alič and published by . This book was released on 2015 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Network Coding For Star and Mesh Networks

Author : Juma Ben Saleh
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Network Coding For Star and Mesh Networks by : Juma Ben Saleh

Download or read book Network Coding For Star and Mesh Networks written by Juma Ben Saleh and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Opportunistic Networks

Author : Anshul Verma
Publisher : CRC Press
ISBN 13 : 100042975X
Total Pages : 330 pages
Book Rating : 4.0/5 (4 download)

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Book Synopsis Opportunistic Networks by : Anshul Verma

Download or read book Opportunistic Networks written by Anshul Verma and published by CRC Press. This book was released on 2021-08-18 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The opportunistic network is an emerging and recent area of research. To make this research area more adaptable for practical and industrial use, there is a need to further investigate several research challenges in all aspects of opportunistic networks. Therefore, Opportunistic Networks: Fundamentals, Applications and Emerging Trends provides theoretical, algorithmic, simulation, and implementation-based research developments related to fundamentals, applications, and emerging research trends in opportunistic networks. The book follows a theoretical approach to describe fundamentals to beginners and incorporates a practical approach depicting the implementation of real-life applications to intermediate and advanced readers. This book is beneficial for academicians, researchers, developers, and engineers who work in or are interested in the fields related to opportunistic networks, delay tolerant networks, and intermittently connected ad hoc networks. This book also serves as a reference book for graduate and postgraduate courses in computer science, computer engineering, and information technology streams.