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network coding for hop-by-hop communication enhancement in multi-hop networks

COMPUTER networkS 2016年 105卷 138-149页

作者： Pahlevani, Peyman Khamfroush, Hana Lucani, Daniel E. Pedersen, Morten V. Fitzek, Frank H. P. Inst Adv Studies Basic Sci Dept Comp Sci & Informat Technol Zanjan Iran Penn State Univ Dept Comp Sci University Pk PA 16802 USA Aalborg Univ Dept Elect Syst Aalborg Denmark Tech Univ Dresden Dresden Germany

In our recent study, we introduced the PlayNCool protocol that increases the throughput of the wireless networks by enabling a helper node to strengthen the communication link between two neighboring nodes and using random linear network coding. This paper focuses on design and implementation advantages of the PlayNCool protocol in a real environment of wireless mesh networks. We provide a detailed protocol to implement PlayNCool that is independent from the other protocols in the current computer network stack. PlayNCool performance is evaluated using NS-3 simulations and real-life measurements using Aalborg University's Raspberry Pi test-bed. Our results show that selecting the best policy to activate the helper node is a key to guarantee the performance of PlayNCool protocol. We also study the effect of neighbor nodes in the performance of PlayNCool. Using a helper in presence of active neighbors is useful even if the channel from helper to destination is not better than the channel between sender and destination. PlayNCool increases the gain of end-to-end communication by two-fold or more while maintaining compatibility to standard wireless ad-hoc routing protocols. (C) 2016 Elsevier B.V. All rights reserved.

关键词： Wireless communication network coding Routing protocols

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network coding for Efficient network Multicast

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BELL LABS TECHNICAL JOURNAL 2009年第3期14卷 157-166页

作者： Soljanin, Emina Gupta, Piyush Kramer, Gerhard Mathematics of Networks and Communications Research Department Alcatel-Lucent Bell Labs Murray Hill New Jersey

network coding has emerged as a powerful technique based on a simple but far-reaching observation that, in communication networks, one can allow intermediate nodes to not only forward but also combine and process the incoming information flows. Today, the field is attracting significant interest from both academia and industry, and we are beginning to see the first practical applications. In this survey paper, we first review the main ideas, concepts, and applications of network coding. We then discuss some of the algorithmic aspects of performing network multicast efficiently with network coding. Lastly, we give an overview of a few quantitative results that compare the performance of network coding with that of traditional routing in certain types of communication networks. (C) 2009 Alcatel-Lucent.

关键词： network coding

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network coding Assisted Secure Transmission in Full-Duplex Relay networks

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IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY 2020年第8期69卷 9196-9200页

作者： He, Hongliang Lyu, Shanxiang He, Qinghao Xu, Dongyang Jinan Univ Coll Informat Sci & Technol Guangzhou 510632 Peoples R China Jinan Univ Coll Cyber Secur Guangzhou 510632 Peoples R China Dongguan Technician Coll Dept Intelligent Mfg Dongguan 523808 Peoples R China Xi An Jiao Tong Univ Sch Elect & Informat Engn Xian 710049 Peoples R China

Secure transmission in full-duplex relay networks is considered in this paper. To ensure security, we propose a network coding assisted relaying scheme, where all the messages are encoded by the transmitter and the full-duplex relay respectively. Specifically, the encoding at the transmitter makes sure that all the coded messages are required to decode a private message. Consequently, security is achieved if the eavesdropper loses one or more coded messages. The encoding at the relay is operated by introducing a public auxiliary message, which changes the eavesdropper's decoding method from combining-before-decoding to combining-after-decoding, and thus decreases the eavesdropper's signal-noise-ratio (SNR) obviously. Intercept probability is used to measure the security, and results show that the proposed scheme can significantly improve the security performance of full-duplex relay networks.

关键词： Security network coding Encoding Decoding Relay networks (telecommunications) Signal to noise ratio Full-duplex physical-layer security network coding

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network coding Aware Cooperative MAC Protocol for Wireless Ad Hoc networks

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IEEE TRANSACTIONS ON PARALLEL AND DISTRIBUTED SYSTEMS 2014年第1期25卷 167-179页

作者： Wang, Xiaoyan Li, Jie Tang, Feilong Univ Tsukuba Grad Sch Syst & Informat Engn Tsukuba Ibaraki 3058573 Japan Univ Tsukuba Fac Engn Informat & Syst Tsukuba Ibaraki 3058573 Japan Shanghai Jiao Tong Univ Sch Software Shanghai 200030 Peoples R China

Cooperative communication, which utilizes neighboring nodes to relay the overhearing information, has been employed as an effective technique to deal with the channel fading and to improve the network performances. network coding, which combines several packets together for transmission, is very helpful to reduce the redundancy at the network and to increase the overall throughput. Introducing network coding into the cooperative retransmission process enables the relay node to assist other nodes while serving its own traffic simultaneously. To leverage the benefits brought by both of them, an efficient Medium Access Control (MAC) protocol is needed. In this paper, we propose a novel network coding aware cooperative MAC protocol, namely NCAC-MAC, for wireless ad hoc networks. The design objective of NCAC-MAC is to increase the throughput and reduce the delay. Simulation results reveal that NCAC-MAC can improve the network performance under general circumstances comparing with two benchmarks.

关键词： Cooperative communication network coding medium access control protocol relay selection

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network coding-based reliable multicast in wireless networks

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COMPUTER networkS 2010年第11期54卷 1823-1836页

作者： Chi, Kaikai Jiang, Xiaohong Horiguchi, Susumu Tohoku Univ Grad Sch Informat Sci Sendai Miyagi 9808579 Japan Zhejiang Univ Technol Coll Comp Sci & Technol Hangzhou 310023 Zhejiang Peoples R China

Reliable multicast, the lossless dissemination of data from one sender to a group of receivers, has a wide range of important applications. Recently, network coding has been applied to the reliable multicast in wireless networks, where multiple lost packets with distinct intended receivers are XOR-ed together as one packet and forwarded via single retransmission, resulting in a significant reduction of bandwidth consumption. However, the simple XOR operation cannot fully exploit the potential coding opportunities and finding the optimal set of lost packets for XOR-ing is a complex NP-complete optimization problem. In this work, we intend to move beyond the simple XOR to more general coding operations. Specifically, we propose two new schemes (a static scheme which repeatedly retransmits one coding packet until all intended receivers receive it and a dynamic scheme which updates the coding packet once one or more receivers receive it) to encode packets with more general coding operations, which not only can encode lost packets with common intended receivers together to fully exploit the potential coding opportunities but also have polynomial-time complexity. We demonstrate, through both analytical and simulation results, that the proposed schemes can more greatly reduce the bandwidth requirement than the available coding-based schemes, especially in the case of high packet loss probabilities and a larger number of receivers. This reduction can vary from a few percents to over 15% depending on the packet loss probabilities and the number of receivers. (C) 2010 Elsevier B.V. All rights reserved.

关键词： Wireless networks network coding Reliable multicast Physical-layer broadcast Bandwidth saving

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network coding for reliable video distribution in multi-hop device-to-device communications

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EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND networkING 2020年第1期2020卷 1-21页

作者： Wang, Lei Liu, Yu Xu, Jia Yin, Jun Xu, Lijie Yang, Yuwang Jiangsu Key Lab Big Data Secur & Intelligent Proc 9 Wenyuan Rd Nanjing Peoples R China Nanjing Univ Posts & Telecommun Sch Comp 9 Wenyuan Rd Nanjing 210023 Peoples R China Nanjing Univ Sci & Technol Sch Comp Sci & Engn 200 Xiaolingwei Rd Nanjing 210094 Peoples R China

It is becoming more and more popular to share videos among multiple users. However, sharing video in traditional cellular networks will incur high expenses. Device-to-device (D2D) communication is one of the crucial technologies in the fifth-generation network, and it enables the devices to transmit data directly without the relay of base stations. This paper proposes a network-coding-based video distribution scheme for the D2D communication environment. The proposed scheme applies the network coding technology in the H.264 video transmission, which can protect crucial information of the video. This scheme enables the receivers to decode the original video with a high probability, especially in the networks with interferences. Both the simulation results and the actual experimental results show that using network coding technology in video transmission can improve the quality of the received video. Compared with the traditional scheme, the successful decoding rate of the proposed scheme is increased by 46% in our experimental settings.

关键词： Video distribution network coding Device-to-device Wireless networks

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network coding Based Distributed Indoor Target Tracking Using Wireless Sensor networks

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WIRELESS PERSONAL COMMUNICATIONS 2017年第3期96卷 3673-3691页

作者： Pillutla, Laxminarayana S. DA IICT Post Bag 4 Gandhinagar 382007 Gujarat India

We consider the problem of indoor target tracking using wireless sensor networks. To facilitate ease of deployment and keeping the cost to a minimum we focus on devising a target tracking system based on received signal strength indicator (RSSI) measurements. We adopt a model based approach in which the targets are assumed to evolve in time according to a certain maneuver model and the deployed sensors record RSSI measurements governed by an appropriate observation model. To devise an accurate target tracking algorithm, that would account for the radio environment, we use mixed maximum likelihood (ML)-Bayesian framework. Under this framework the radio environment is estimated using the ML approach and the target tracking is accomplished using a Bayesian filtering technique namely, particle filtering. Next to create a distributed tracking algorithm which warrants that every sensor node has access to RSSI measurements of all the other sensor nodes we introduce a dissemination mechanism for the same based on the technique of random linear network coding (RLNC). In this technique every sensor node encodes RSSI measurements that it has received from other nodes (including its own) to create a network coded packet, which in turn is transmitted using the carrier-sense multiple access based access mechanism. Our simulation results demonstrate that the root mean square tracking error (RMSE) obtained by using RLNC is strictly lower than what was achieved with a competing scheme based on localized aggregation. This can be attributed to the rapid dissemination capability of the RLNC technique. Further, the growth of RMSE in a strongly connected network with noise variance was found to be much slower than in the case of a weakly connected network. This points to the potential of RLNC in improving tracking performance, especially in strongly connected networks.

关键词： Wireless sensor networks network coding Bayesian filtering and EM algorithm

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network coding in Node-Constrained Line and Star networks

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IEEE TRANSACTIONS ON INFORMATION THEORY 2011年第7期57卷 4452-4468页

作者： Yazdi, S. M. Sadegh Tabatabaei Savari, Serap A. Kramer, Gerhard Texas A&M Univ Dept Elect & Comp Engn College Stn TX 77843 USA Alcatel Lucent Bell Labs Murray Hill NJ 07974 USA

Line and star networks with both node and edge constraints are studied in the network coding framework. For line networks, the capacity region of the general multiple multicast problem is established. The coding theorem is based on a binary linear coding scheme, while the converse requires new upper bounds that improve on standard cut-based bounds. For star networks, the multiple unicast problem is examined. Capacity upper bounds are derived and a simple linear coding scheme is proposed which is based on the combinatorial optimization problem of cycle packing in directed graphs. The optimality of this scheme is established for a broad class of demands. The connection of node-constrained network coding in star networks, and index coding with side information is discussed and used to partially characterize the optimal linear code for general rates.

关键词： Index coding line network linear network coding network coding node-constrained network star network

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network coding-based multi-path routing algorithm in two-layered satellite networks

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IET COMMUNICATIONS 2018年第1期12卷 2-8页

作者： Xu, Wenchao Jiang, Meng Tang, Feilong Yang, Yanqin East China Normal Univ Shanghai Key Lab Multidimens Informat Proc Shanghai Peoples R China Shanghai Jiao Tong Univ Dept Comp Sci & Engn Shanghai Peoples R China

Satellite networks are capable of contenting a variety of data transmission needs of users in geographically diverse locations throughout the world. Multi-layered satellite networks (MLSNs) can construct efficient communications networks due to their extensive coverage and high network capacity. However, throughput degradation and severe end-to-end delay could occur in MLSNs because of the traffic congestion. To resolve these problems, the authors first propose a novel MEO/LEO satellite network architecture that construct effective inter-satellite links. Then the authors present a network coding-based multi-path routing algorithm to deliver traffic through the hybrid satellite network. The analysis of characteristics of the proposed scheme are addressed by performance evaluations in simulation.

关键词： network coding telecommunication network routing satellite links data communication telecommunication traffic network coding-based multipath routing algorithm two-layered satellite networks data transmission multilayered satellite networks MLSNs communication networks network capacity throughput degradation end-to-end delay traffic congestion MEO-LEO satellite network architecture inter-satellite links hybrid satellite network performance evaluations

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network coding-based channel quality indicator reporting for two-way multi-relay networks

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WIRELESS COMMUNICATIONS & MOBILE COMPUTING 2014年第15期14卷 1471-1483页

作者： Quoc-Tuan Vien Nguyen, Huan X. Glasgow Caledonian Univ Sch Engn & Built Environm Glasgow G4 0BA Lanark Scotland Middlesex Univ Sch Sci & Technol London NW4 4BT England

This paper considers channel quality indicator (CQI) reporting for data exchange in a two-way multi-relay network. We first propose an efficient CQI reporting scheme based on network coding, where two terminals are allowed to simultaneously estimate the CQI of the distant terminal-relay link without suffering from additional overhead. In addition, the transmission time for CQI feedback at the relays is reduced by half while the increase in complexity and the loss of performance are negligible. This results in a system throughput improvement of 16.7% with our proposed CQI reporting. Upper and lower bounds of the mean square error (MSE) of the estimated CQI are derived to study performance behaviour of our proposed scheme. It is found that the MSE of the estimated CQI increases proportionally with the square of the cardinality of CQI level sets although an increased number of CQI levels would eventually lead to a higher data rate transmission. On the basis of the derived bounds, a low-complexity relay selection (RS) scheme is then proposed. Simulation results show that, in comparison with optimal methods, our suboptimal bound-based RS scheme achieves satisfactory performance while reducing the complexity at least three times in case of large number of relays. Copyright (c) 2012 John Wiley & Sons, Ltd.

关键词： two-way wireless relay networks network coding CQI reporting

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