Spectrum and Energy Efficiency in Two-Way Multi-Relay Networks with Selective Relaying

被引：0
|
作者：
Chen, Qing [1 ]
Gursoy, Mustafa Cenk [2 ]
机构：
[1] Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA
[2] Syracuse Univ, Dept Elect Engn & Comp Sci, Syracuse, NY 13244 USA
来源：
2012 IEEE MILITARY COMMUNICATIONS CONFERENCE (MILCOM 2012) | 2012年
关键词：
D O I：
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中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper, we study two-way multi-relay networks (TWMRNs) in which two nodes exchange information indirectly via an optimal relay node in Rayleigh fading channels. An amplify-and-forward (AF) scheme has been employed and the network mechanism is investigated in depth using a Markov chain model. Automatic Repeat-reQuest (ARQ) retransmission has been applied to guarantee successful packet delivery. The bit energy consumption and goodput are analyzed as functions of the signal-to-noise ratio and transmission rate. Through numerical results, it is demonstrated that selective relaying in TWMRNs can potentially increase the network reliability and achieve higher spectrum and energy efficiency than two-way networks with a single relay.
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页数：6
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