Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18977
Title: Paired-relay-selection schemes for two-way relaying with network coding
Authors: Jiang, Y
Lau, FCM 
Sattar, Z
Ho, IWH
Zhou, QF
Issue Date: 2015
Source: IET Communications, 2015, v. 9, no. 6, p. 888-896
Abstract: To exchange information between two sources in a two-way relaying network with multiple potential relays, most researches focus on two-hop relay system with single-relay-selection (SRS) scheme. Comparing with SRS scheme, the authors first design a paired-relay-selection (PRS) scheme in which a pair of 'best' relays broadcast network-coded information to other nodes (source or relay). They propose an optimal selection algorithm and a suboptimal algorithm that selects the pair of 'best' relays in the PRS scheme and they describe how the nodes exchange information in a frame consisting of four timeslots. Both the analytical and simulation results show that when the pathloss 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 in uniformly distributed relay networks. In addition, to reduce the overhead of the PRS scheme, they propose an iterative-PRS (I-PRS) scheme in which the paired relay is selected in an iterative and opportunistic way. Simulation results show that the I-PRS scheme has nearly the same outage performance as the PRS scheme under time-invariant channels and significantly outperforms the PRS scheme under time-varying channels.
Publisher: Institution of Engineering and Technology
Journal: IET Communications 
ISSN: 1751-8628
DOI: 10.1049/iet-com.2014.0726
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

2
Last Week
0
Last month
0
Citations as of Sep 4, 2020

WEB OF SCIENCETM
Citations

2
Last Week
0
Last month
0
Citations as of Sep 15, 2020

Page view(s)

144
Last Week
3
Last month
Citations as of Sep 16, 2020

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.