NDLI: An efficient retransmission strategy for multisource multidestination relay networks over rayleigh flat fading channels

Content Provider	IEEE Xplore Digital Library
Author	Quoc-Tuan Vien Tianfield, H. Stewart, B.G. Nguyen, H.X. Jinho Choi
Copyright Year	2011
Description	Author affiliation: School of Engineering and Information Sciences, Middlesex University, The Burroughs, London NW4 4BT, UK (Nguyen, H.X.) \|\| School of Engineering and Built Environment, Glasgow Caledonian University, Cowcaddens Road, G4 0BA, UK (Quoc-Tuan Vien; Tianfield, H.; Stewart, B.G.) \|\| School of Engineering, Swansea University, Singleton Park, Swansea SA2 8PP, UK (Jinho Choi)
Abstract	This paper considers the reliable transmission for wireless multisource multidestination relay networks where multiple sources want to distribute information to a set of destinations with the assistance of a relay. Simply, applying automatic repeat request (ARQ) protocols for retransmission of lost or erroneous packets may cause a considerable delay with a significantly increased number of retransmissions when multiple sources and multiple destinations are taken into consideration. To solve this problem, we propose a new ARQ protocol based on network coding (NC) to significantly reduce the number of retransmissions of the lost packets. In our proposed NC-based ARQ protocol, the relay detects packets from different sources, then combines and forwards the packets which are lost at the destinations using NC. In order to guarantee that all lost packets are retransmitted in an efficient way, we propose two packet-combination algorithms for the retransmissions at the relay and sources. Furthermore, we analyze the transmission bandwidth of different ARQ protocols over Rayleigh flat fading channels and provide the numerical results to demonstrate the superior performance of the proposed NC-based ARQ protocol over some existing schemes.
Starting Page	1
Ending Page	5
File Size	146831
Page Count	5
File Format	PDF
ISBN	9781457717864
ISSN	18825621
e-ISBN	9782908849257
e-ISBN	9782908849264
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-03
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	National Institute of Inform
Subject Keyword	Fading Protocols Bandwidth Silicon Reliability Relays Automatic repeat request
Content Type	Text
Resource Type	Article

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