论文标题
基于NOMA的钻石继电器网络的错误概率分析
Error Probability Analysis of NOMA-based Diamond Relaying Network
论文作者
论文摘要
基于非正交的多重访问（NOMA）的合作继电器系统（CRS）非常有希望克服传统合作通信效率低下的光谱。尽管NOMA-CRS最近受到了极大的关注，但几乎所有研究仅根据容量和中断概率研究NOMA-CR。 Noma-CR的错误性能尚未得到充分研究。在本文中，我们将基于NOMA的钻石继电器网络（NOMA-DRN）的错误性能分析为NOMA-CRS方案不完善的连续干扰取消器（SIC）。我们为Noma-DRN得出了确切的位误差概率（BEP），并在封闭形式中提供了紧密的近似BEP。此外，进行了高SNR分析以表明Noma-DRN具有误差地板。此外，事实证明，Noma-DRN原来是一种不可设备的通信系统，我们提出了符号的先验概率。所有派生表达式均通过计算机模拟验证。
Non-orthogonal multiple access (NOMA)-based cooperative relaying systems (CRS) are very promising to overcome spectral inefficiency of conventional cooperative communications. Although NOMA-CRS have great recent attention, almost all studies investigate NOMA-CRS only in terms of capacity and outage probability. Error performances of NOMA-CRS have not been well-studied. In this paper, we analyze error performance of NOMA-based diamond relaying network (NOMA-DRN) with imperfect successive interference canceler (SIC) as a NOMA-CRS scheme. We derive exact bit error probability (BEP) for NOMA-DRN and provide a tight approximated BEP in the closed-form. In addition, high-SNR analysis is conducted to present that NOMA-DRN has an error floor. Moreover, it is proved that NOMA-DRN turns out to be a non-equiprobable communication system and we derive priori probabilities of symbols. All derived expressions are validated via computer simulations.
