NDLI: Multiple-Access Relay Channel with Network Coding and Non-Ideal Source-Relay Channels

Content Provider	IEEE Xplore Digital Library
Author	Woldegebreal, D.H. Karl, H.
Copyright Year	2007
Description	Author affiliation: Univ. of Paderborn, Paderborn (Woldegebreal, D.H.; Karl, H.)
Abstract	The multiple-access relay channel (MARC) based on network coding has been proposed in recent papers as a means to achieve diversity gain in wireless networks, at the same time reducing the number of transmissions by a relay node. In MARC, multiple sources transmit to a common destination with the assistance of a single relay. In a network-coding-based realization of MARC, the relay merges the messages received from the two sources and forwards them to the destination; at the destination, the sources' messages can be recovered from either their direct transmissions or by performing additional network coding. In this work, performance analysis in the form of outage probability and coverage area, when non-ideal source-relay links exist, is performed. The relay is assumed to operate either in static or adaptive mode, and comparisons with the conventional MARC and point-to-point transmission are made. The outage results show that the conventional MARC system perform better when the source-relay links are high quality. Network-coding- based MARC operated in adaptive mode has better performance when the quality of the source-relay links are poor, and this system has better coverage area.
Starting Page	732
Ending Page	736
File Size	309278
Page Count	5
File Format	PDF
ISBN	9781424409785
DOI	10.1109/ISWCS.2007.4392437
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-17
Publisher Place	Norway
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	network coding Redundancy Protective relaying Diversity methods coverage area Decoding Relays Multiple access relay channel outage probability Wireless networks Diversity reception Network coding Broadcasting Performance analysis
Content Type	Text
Resource Type	Article

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