Buffer-Aided Virtual Full-Duplex Cooperative Networks Exploiting Source-to-Relay Broadcast Channels
Buffer-Aided Virtual Full-Duplex Cooperative Networks Exploiting Source-to-Relay Broadcast Channels
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DOI：
10.1109/vtcfall.2019.8891481
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发表时间：
2019-09
期刊：
影响因子：
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通讯作者：
Tatsuya Mishina;Miharu Oiwa;R. Nakai;S. Sugiura
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文献类型：
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作者：
Tatsuya Mishina;Miharu Oiwa;R. Nakai;S. Sugiura
本文提出了一种虚拟全双工中继协议的帮助下，多个半双工中继节点配备缓冲区和多个天线元件。该协议增加了频谱效率，相比传统的半双工对应。更具体地，多个中继节点同时接收源分组，而单个中继节点在相同时隙将缓冲的分组重传到目的地节点。为了消除中继间干扰的不利影响，在中继节点处使用多个天线元件。我们的性能结果表明，所提出的虚拟全双工协议是能够实现较低的延迟配置文件比传统的虚拟全双工最大-最大中继选择，同时打击中继间干扰所施加的限制。
This paper proposes a virtual full-duplex relaying protocol with the aid of multiple half-duplex relay nodes equipped with buffers and multiple antenna elements. The protocol increases the spectral efficiency, in comparison to the conventional half-duplex counterpart. More specifically, multiple relay nodes simultaneously receive a source packet, while a single relay node retransmits a buffered packet to the destination node at the same time slot. In order to eliminate the detrimental effects of inter-relay interference, multiple antenna elements are used at relay nodes. Our performance results show that the proposed virtual full-duplex protocol is capable of achieving a lower delay profile than that of the conventional virtual full-duplex max- max relay selection, while combating limitations imposed by inter-relay interference.