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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/15778

Title: Lossy-Forward Relaying for Lossy Communications: Rate-Distortion and Outage Probability Analyses
Authors: Lin, Wensheng
Qian, Shen
Matsumoto, Tad
Keywords: Relaying system
lossy-forward
distributed lossy source coding
rate-distortion
outage probability
Issue Date: 2019-06-05
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Magazine name: IEEE Transactions on Wireless Communications
DOI: 10.1109/TWC.2019.2919831
Abstract: This paper presents an in-depth performance analysis of lossy communications in a single-relay system, where the recovered information is not necessarily lossless in both the relay and the destination. In this system, the relay continues transmitting the sequence with source-relay link errors to the destination even if errors are detected after decoding, i.e., so-called Lossy-Forward (LF) strategy. The problem can be decomposed into two parts as follows: a point-to-point coding problem in the source-relay (S-R) link, and a lossy source coding problem with a LF relay in the source-destination (S-D) and relay-destination (R-D) links. To begin with, we derive the admissible rate region of the lossy source coding problem with a LF relay for a specified distortion requirement. Then, we focus on the analysis of outage probability over block Rayleigh fading channels. Finally, a practical encoding/decoding scheme is proposed for the evaluation of system performance by computer simulations. Due to the suboptimal channel coding and incomplete utilization of joint typicality, the theoretical performance cannot be achieved in the simulation; however, the tendency of curves in simulations matches that in theoretical calculation.
Rights: This is the author's version of the work. Copyright (C) 2019 IEEE. IEEE Transactions on Wireless Communications, 2019, DOI: 10.1109/TWC.2019.2919831. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
URI: http://hdl.handle.net/10119/15778
Material Type: author
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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