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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/16045

Title: Rate-Distortion and Outage Probability Analyses for Single Helper Assisted Lossy Communications
Authors: Lin, Wensheng
Xue, Qiang
He, Jiguang
Juntti, Markku
Matsumoto, Tad
Keywords: Wireless sensor network
Internet of Things
outage probability
Rayleigh fading
Issue Date: 2019-09-05
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Magazine name: IEEE Transactions on Vehicular Technology
DOI: 10.1109/TVT.2019.2939622
Abstract: The primary objective of this paper is to investigate the performance improvement provided by a helper, with the aim of applications to a lossy communication system in wireless sensor networks (WSNs) and/or Internet of Things (IoT). Initially, we formulate the system model as a problem of multiterminal source coding with a helper, and determine an inner bound on the achievable rate-distortion region for binary sources. Based on Shannon's lossy source-channel separation theorem, we further derive the outage probability of the system over block Rayleigh fading channels. The numerical results indicate that a helper can obviously expand the achievable rate-distortion region and provide diversity gains which in turn decrease the outage probability. Finally, we evaluate the practical performance of outage probability through simulations with exclusive-or (XOR) as an example of the helper structure. Both the simulation and theoretical results show second order diversity by introducing a helper, and lower outage probability by increasing the acceptable distortions.
Rights: This is the author's version of the work. Copyright (C) 2019 IEEE. IEEE Transactions on Vehicular Technology, 2019, DOI:10.1109/TVT.2019.2939622. 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/10119/16045
Material Type: author
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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