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Title: Selection of spatially-distributed relays for two-way relaying with network coding
Authors: Jiang, Y
Lau, FCM 
Sattar, Z
Zhou, QF
Keywords: keywords: {Network coding
Relay selection
Two-way relaying
Issue Date: 2013
Publisher: IEEE
Source: 2013 IEEE Wireless Communications and Networking Conference (WCNC), 7-10 April 2013, Shanghai, Shanghai, China, p. 2966-2970 How to cite?
Abstract: To help exchanging information between two sources in a two-way relaying network with multiple relays, we consider selecting one “best” relay or a pair of “best” relays that broadcast network-coded information to other nodes (source or relay). Further, we assume that the multiple relays are random distributed in a one-dimensional or two-dimensional space between the sources and we take the path loss between the nodes into consideration. We also select the relay(s) based on the max-min criterion in both the Single Relay Selection (SRS) scheme and the Paired-Relay Selection (PRS) scheme. In particular, we propose a Distributed VIterbi Selection Algorithm (DVISA) that selects the pair of “best” relays in the PRS scheme and we describe how the nodes exchange information in a frame consisting of 4 time slots. Both our analytical and simulation results show that when the path-loss exponent is large and/or there is a sufficient number of relays to choose from, using two relay nodes can provide a lower outage compared with using only one relay node even under the same total transmit power.
ISBN: 978-1-4673-5938-2
978-1-4673-5937-5 (E-ISBN)
ISSN: 1525-3511
DOI: 10.1109/WCNC.2013.6555033
Appears in Collections:Conference Paper

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