能量捕获协作中继网络多中继节点选择策略

doi:10.11959/j.issn.1000-436x.2017276

Abstract

Abstract:

An energy capture cooperative relay network was studied.Unlike traditional cooperative relay networks,the relay nodes generally did not have a fixed energy supply but could carry out energy capture.For this network,a natural question was how to determine whether the relay nodes perform energy capture or data forwarding,and how to select the relay node to assist the information transmission between the source node and the destination node.Based on this problem,a multi-relay node selection scheme was proposed,which select the operation according to the energy of the current time slot of the relay node.In each time slot,the relay node that meet the battery threshold requirements was selected to assist in transmission.The Markov chain was used to model the charging and discharging process of the relay node battery,and the probability of interruption and throughput of the wireless network was obtained.And the value of the battery threshold when the throughput was maximized,that is,when the probability of network breakage was minimum was solved.Finally,the advantages of this scheme were verified by numerical experiments.

Key words: wireless network, energy capture, collaborative relay, Markov chain

CLC Number:

TN925

Xian-zhong TIAN,Min GUO,Jia-cun HE,Gao LIU,Yi-nan ZHU. Multi relay node selection strategy for energy capture collaborative relay network[J]. Journal on Communications, 2017, 38(Z2): 1-7.

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Multi relay node selection strategy for energy capture collaborative relay network

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