NDLI: Efficient retransmission with network coding for multiple flows in wireless networks

Content Provider	IEEE Xplore Digital Library
Author	Zhiheng Zhou Liang Zhou Gang Feng
Copyright Year	2011
Description	Author affiliation: National Key Laboratory of Communication, University of Electronic Science and Tech of China, Chengdu, China (Zhiheng Zhou; Liang Zhou; Gang Feng)
Abstract	Recently, network coding technique has emerged as a promising data transport paradigm for communication networks. In wireless networks, when network coding is applied to data recovery, an intermediate node is able to simultaneously delivery multiple loss packets destined to different destinations with a single retransmission. However, in existing retransmission scheme with opportunistic network coding for multiple unicast flows, only native packets are used in coding process. In addition, destination nodes usually erase the encoded packets they cannot decode. In this paper, we propose an efficient retransmission approach that employs opportunistic network coding for multiple unicast flows. Our approach enables nodes to exploit the potential benefits of encoded packets to create more coding opportunities. Moreover, we present a redistribution algorithm to further reduce the number of retransmissions. Simulation results for wheel networks indicate that significant performance improvement in term of the average number of retransmissions, compared with existing schemes that can be achieved.
Starting Page	1126
Ending Page	1131
File Size	486923
Page Count	6
File Format	PDF
ISBN	9781457701009
e-ISBN	9781457701016
DOI	10.1109/ChinaCom.2011.6158325
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Unicast Bit error rate Wheels Receivers Network coding Encoding Automatic repeat request
Content Type	Text
Resource Type	Article

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