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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/15510

Title: Performance Analysis of Distortion-Acceptable Cooperative Communications in Wireless Sensor Networks for Internet of Things
Authors: Lin, Wensheng
Matsumoto, Tad
Keywords: Wireless sensor networks
Internet of Things
cooperative communications
side information
Issue Date: 2018-11-22
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Magazine name: IEEE Sensors Journal
DOI: 10.1109/JSEN.2018.2882839
Abstract: This paper analyzes the performance limit of cooperative communications in wireless sensor networks (WSNs), with the aim of utilizing the analytical results to practical applications, for example, Internet of Things (IoT). The observation of a primary sensor is not necessarily to be reconstructed losslessly, as long as the system can still make correct judgements and operations. First of all, we perform the theoretical analysis to derive an inner bound on the achievable rate-distortion region for lossy communications with helpers. The numerical results precisely match the Wyner-Ziv theorem when there is only one assisting link and no rate constraint on the assisting link. Then, we present a distributed encoding and joint decoding scheme for cooperative communications in WSNs. Moreover, a series of simulations are conducted for the performance evaluation and verification. Although there is an obvious gap between the theoretical and simulation results, the performance curves show similar tendencies in terms of the signal-to-noise ratio (SNR) versus bit error rate (BER).
Rights: This is the author's version of the work. Copyright (C) 2018 IEEE. IEEE Sensors Journal, 2018, DOI:10.1109/JSEN.2018.2882839. 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/10119/15510
Material Type: author
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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