多中继去噪重传物理层网络编码自适应分集策略

doi:10.11959/j.issn.1000-436x.2017031

Abstract

Abstract:

The capacity issue of a denoise-and-forward(DNF) protocol was focused on based PNC system of frequency non-selective Rayleigh fading channel.First,the total sum-rate of the system was derived.With the derived sum-rate expression,two policies maximizing the system sum-rate are proposed.On this basis,a novel adaptive diversity scheme was proposed.Closed-form expressions of the system outage probability with the new proposed scheme as well as the amplify-and-forward (AF) based PNC system and the conventional direct transmission were derived over frequency-nonselective Rayleigh fading channels.Simulation experiments are conducted and the results show that the outage performance of the system can be im-proved significantly compared to the AF based PNC system and the conventional direct transmission scheme.

Key words: physical-layer network coding, adaptive diversity, relay selection, outage probability

CLC Number:

TN925

Rui-feng GAO,Xiao-dong JI,Zhi-hua BAO,Shi-bing ZHANG,Chen XU. Denoise-and-forward based adaptive diversity scheme for physical-layer network coding with multiple relay node[J]. Journal on Communications, 2017, 38(2): 81-93.

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References 15

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