Reliable relay assisted wireless multicast using network coding

Fan, Pingyi; Chen, Zhi; Chen, Wei; Letaief, Khaled B.

doi:10.1109/jsac.2009.090615

Cited by 94 publications

(70 citation statements)

References 17 publications

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“…Instead of retransmitting each packet, Fan et al [12] opted to use network coded packets in which each combined packet is a XORing of lost packets. In such a manner a destination node may recover one lost packet out of each combined packet given that it had previously received the other packets forming part of the combined packet.…”

Section: Related Workmentioning

confidence: 99%

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Infrastructure dependent wireless multicast - The effect of spatial diversity and error correction

Vella

Zammit

2012

2012 IV International Congress on Ultra Modern Telecommunications and Control Systems

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Abstract-The use of multiple Access Points (APs) with one AP placed at the middle of a coverage area and the remaining placed at the edge may reduce the Packet Error Rate (PER) experienced by a group of multicast receivers. This paper shows that Spatial Diversity can augment the channel quality experienced especially by those nodes which are located farther from the master AP, i.e. the AP at the middle, however this study also demonstrates the need for error correction scheme. The aim of this analysis is to propose a means of enhancing the infrastructure end of an IEEE 802.11n Wireless Local Area Network (WLAN), such that multicast data can be delivered reliably in order to guarantee that the received video has an adequate Peak Signal to Noise Ratio (PSNR), but with the constraint that the Medium Access Control (MAC) and the Physical (PHY) layer of the receivers are not modified, hence a legacy IEEE 802.11n node may join the multicast group and experience good Quality of Service.

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Section: Related Workmentioning

confidence: 99%

“…The remaining 27 Table V. Nodes 4,8,12,and 16 are at the border of the sector, hence they will receive transmission from two Slave APs. Therefore, their channel experience will be better than the one indicated in Table V.…”

Section: B Spatial Diversity and Packet Redundancymentioning

confidence: 99%

Infrastructure dependent wireless multicast - The effect of spatial diversity and error correction

Vella

Zammit

2012

2012 IV International Congress on Ultra Modern Telecommunications and Control Systems

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“…Researchers have also been dedicated to investigating the application of network coding (NC) [8], [9] to improve the network throughput of some particular relay topologies, such as relayassisted broadcast channels [10], [11], multicast channels [12], [13], unicast channels [14], [15], and bidirectional channels (i.e., TWSRNs) [16], [17]. Here, we investigate the application of NC to TWSRNs, which have interested many studies [18]- [23].…”

Section: Introductionmentioning

confidence: 99%

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

Vien

Nguyen

2012

Wirel. Commun. Mob. Comput.

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an open access repository of Middlesex University research http://eprints.mdx.ac.uk Vien, Quoc-Tuan; Nguyen, Huan X., 2012. Network coding based CQI reporting for two-way multi-relay networks. Available from Middlesex University's Research Repository. Copyright:Middlesex University Research Repository makes the University's research available electronically.Copyright and moral rights to this work are retained by the author and/or other copyright owners. No part of the work may be sold or exploited commercially in any format or medium without the prior written permission of the copyright holder(s). A copy may be downloaded for personal, noncommercial, research or study without prior permission and without charge. Any use of the work for private study or research must be properly acknowledged with reference to the work's full bibliographic details.This work may not be reproduced in any format or medium, or extensive quotations taken from it, or its content changed in any way, without first obtaining permission in writing from the copyright holder(s).If you believe that any material held in the repository infringes copyright law, please contact the Repository Team at Middlesex University via the following email address: eprints@mdx.ac.ukThe item will be removed from the repository while any claim is being investigated. This results in a significant improvement of system throughput especially when the number of relays is large. 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 though an increased number of CQI levels would eventually lead to a higher data-rate transmission. Based on 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.Quoc-Tuan Vien is with School of Engineering and Built Environment,

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“…As it is illustrated, the double-hop scenario or RANC model has a higher throughput compared to the single hop model. Furthermore both models outperform [43] in terms of throughput mainly because of the following reasons: 1. In [43] retransmission occurs after a certain number of transmission.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In [43], Fan et al propose an NCC transmission protocol for a single source, a single relay and two destination nodes, specifically considering multicast services over wireless channels. This transmission protocol is compared with direct multicast and relay assisted multicast transmission protocols.…”

Section: A Introductionmentioning

confidence: 99%

Queue stability analysis in network coded wireless multicast.

Mohamadi-Moghadam¹

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In this dissertation queue stability in wireless multicast networks with packet erasure channels is studied. Our focus is on optimizing packet scheduling so as to maximize throughput.Specifically, new queuing strategies consisting of several sub-queues are introduced, where all newly arrived packets are first stored in the main sub-queue on a first-come-first-served basis. Using the receiver feedback, the transmitter combines packets from different sub-queues for transmission.Our objective is to maximize the input rate under the queue stability constraints.Two packet scheduling and encoding algorithms have been developed. First, the optimization problem is formulated as a linear programming (LP) problem, according to which a network coding based optimal packet scheduling scheme is obtained. Second, the Lyapunov optimization model is adopted and decision variables are defined to derive a network coding based packet scheduling algorithm, which has significantly less complexity and smaller queue backlog compared with the LP solution. Further, an extension of the proposed algorithm is derived to meet the requirements of time-critical data transmission, where each packet expires after a predefined deadline and then dropped from the system. To minimize the average transmission power, we further derive a v scheduling policy that simultaneously minimizes both power and queue size, where the transmitter may choose to be idle to save energy consumption. Moreover, a redundancy in the schedules is inadvertently revealed by the algorithm. By detecting and removing the redundancy we further reduce the system complexity.Finally, the simulation results verify the effectiveness of our proposed algorithms over existing works.vi

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Reliable relay assisted wireless multicast using network coding

Cited by 94 publications

References 17 publications

Infrastructure dependent wireless multicast - The effect of spatial diversity and error correction

Infrastructure dependent wireless multicast - The effect of spatial diversity and error correction

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

Queue stability analysis in network coded wireless multicast.

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