Performance analysis of two-way full-duplex relay with antenna selection under Nakagami channels
Performance analysis of two-way full-duplex relay with antenna selection under Nakagami channels
复制标题
DOI：
10.1186/s13638-018-1283-2
复制
发表时间：
2018-11
影响因子：
2.6
通讯作者：
Baofeng Ji;Yuqi Li;Yinghui Meng;Yi Wang;Kang Song;Congzheng Han;H. Wen;Liang Song
中科院分区：
文献类型：
--
作者：
Baofeng Ji;Yuqi Li;Yinghui Meng;Yi Wang;Kang Song;Congzheng Han;H. Wen;Liang Song
本文研究了一种全双工（FD）双向中继网络，该网络由一个基站（BS）、一个FD放大转发（AF）中继和一个用户组成，该网络配备了大量多输入多输出（MIMO）天线。为了降低BS的复杂性和成本，本文提出了一种实用的BS天线选择方法来完成双向FD中继网络的传输，以优化系统的中断概率或误码率（BER）性能。在该方案中，BS可以实现基于瞬时信道状态信息（CSI）的发射天线选择（AS），从而与传统FD中继网络相比，提高了系统性能。此外，导出了在nakagami -m信道下的中断概率和平均误码率的封闭表达式。分析结果表明，该方案与传统的自动对焦中继方案相比具有优越性，并通过蒙特卡罗仿真验证了理论分析的正确性。
This paper focuses on a full-duplex (FD) two-way relay network with one base station (BS), one FD amplify-and-forward (AF) relay, and one user, and the BS is equipped with massive multiple-input multiple-output (MIMO) antennas. To reduce the complexity and cost of BS, the paper proposes a practical antenna selection way in BS to complete transmission in two-way FD relay networks to optimize the system performance of outage probability or bit error ratio (BER). In the proposed scheme, BS can implement transmit antenna selection (AS) based on the instantaneous channel state information (CSI), thereby improving the system performance compared to the traditional FD relay networks. Furthermore, closed-form expressions for the outage probability and average BER are derived under Nakagami-mchannels. The analytical results show that the superiority of proposed scheme compared with the conventional AF relay scheme and the correctness of the theoretical analysis verified by the Monte Carlo simulations.