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Author Yi Fang ♦ Lin Wang ♦ Kai-Kit Wong ♦ Kin-Fai Tong
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2013
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Fading ♦ Nakagami distribution ♦ Bit error rate ♦ Decoding ♦ Relays ♦ Iterative decoding ♦ Ultra wideband technology
Abstract This work considers the protograph-coded physical network coding (PNC) based on Alamouti space-time block coding (STBC) over Nakagami-fading two-way relay channels, in which both the two sources and relay possess two antennas. We first propose a novel precoding scheme at the two sources so as to implement the iterative decoder efficiently at the relay. We further address a simplified updating rule of the log-likelihood-ratio (LLR) in such a decoder. Based on the simplified LLR-updating rule and Gaussian approximation, we analyze the theoretical biterror-rate (BER) of the system, which is shown to be consistent with the decoding thresholds and simulated results. Moreover, the theoretical analysis has lower computational complexity than the protograph extrinsic information transfer (PEXIT) algorithm. Consequently, the analysis not only provides a simple way to evaluate the error performance but also facilitates the design of the joint channel-and-PNC (JCNC) in wireless communication scenarios.
Description Author affiliation: Dept. of Electron. & Electr. Eng., Univ. Coll. London, London, UK (Kai-Kit Wong; Kin-Fai Tong) || Dept. of Commun. Eng., Xiamen Univ., Xiamen, China (Yi Fang; Lin Wang)
ISBN 9781479909698
ISSN 21626588
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-09-15
Publisher Place Australia
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 187.62 kB
Page Count 6
Starting Page 243
Ending Page 248

Source: IEEE Xplore Digital Library