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Achieving Diversity for Physical-Layer Network Coding Based Two-Way Multiple-Antenna Relay: A Two-Phase Diversity Scheme
Hui GAO Xin SU Tiejun LV Ruohan CAO Taotao WANG
IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Cooperative Communications for Cellular Networks)
physical-layer network coding, two-way relay, multiple-antenna relay, diversity,
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We propose a two-phase diversity scheme to achieve the end-to-end spatial diversity gain for physical-layer network coding (PNC) based two-way relay with a multiple-antenna relay node. A novel binary PNC-specific maximal-ratio-combining like (MRC-L) scheme is proposed to obtain receive diversity in the multiple-access (MA) phase with linear complexity; the Max-Min criterion based transmit antenna selection (TAS) is adopted to obtain transmit diversity in the broadcast (BC) phase. Both the brief diversity analysis and the Monte Carlo (MC) simulation results demonstrate that the proposed scheme achieves full diversity and outperforms other comparable schemes in terms of end-to-end diversity or power advantage.