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首页> 外文期刊>Wireless Communications Letters, IEEE >NOMA Inspired Cooperative Relaying System Using an AF Relay
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NOMA Inspired Cooperative Relaying System Using an AF Relay

机译:使用AF中继的NO​​MA启发式合作中继系统

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摘要

In this letter, we propose a cooperative relaying system (CRS) based on non-orthogonal multiple access (NOMA) which uses an amplify-and-forward relay. This letter proposes a novel detection scheme in which the received signals of two consecutive time slots at destination is applied. We calculate asymptotic outage probability and derive diversity order of two for each symbol. Simulations show that our system has much better outage performance than NOMA-based CRS with decode-and-forward (DF) relay. Also, asymptotic ergodic sum rate increases log-linearly with transmit SNR and outperforms NOMA-based CRS with DF relay and conventional CRS. Finally, we verify analytical results by Monte-Carlo simulations.
机译:在这封信中,我们提出了一种基于非正交多路访问(NOMA)的协作中继系统(CRS),该系统使用放大转发中继。这封信提出了一种新颖的检测方案,其中应用了目的地处两个连续时隙的接收信号。我们计算渐近中断概率,并得出每个符号的分集阶数为2。仿真表明,我们的系统比具有解码转发(DF)中继的基于NOMA的CRS具有更好的中断性能。此外,渐近遍历总和率随发送SNR呈对数线性增长,并且优于具有DF中继和常规CRS的基于NOMA的CRS。最后,我们通过蒙特卡洛模拟验证分析结果。

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