论文标题
错误分析中Nakagami-M-M褪色通道的解释合作中继的NOMA方案
Error Analysis of Decode-Forward Cooperative Relaying NOMA Schemes over Nakagami-m Fading Channels
论文作者
论文摘要
由于其高光谱效率，非正交的多重访问（NOMA）引起了最近的关注。此外，NOMA可以轻松地在物理层中实施，因此，研究已通过研究广泛分析了其与其他心理层技术的相互作用。在这些相互作用中，合作的NOMA方案是最受调查的计划。但是，这些研究主要是根据可实现的率和中断概率分析合作的NOMA方案，而对于这些系统的位错误概率（BEP）却没有得到很好的研究，尽管它是最重要的性能指标之一。在本文中，我们调查了合作NOMA方案的错误性能，在该方案中解释后继电器可以帮助NOMA使用者。我们在Nakagami-M褪色通道上的封闭形式中得出了精确的BEP表达式。所有派生表达式均通过计算机模拟验证。
Non-orthogonal multiple access (NOMA) has attracted great recent attention due to its high spectral efficiency. Besides, NOMA can be easily implemented in physical layer, thus its interplays with other psychical layer techniques have been analyzed widely by researches. Cooperative NOMA schemes are the most investigated among these interplays. However, these studies mostly analyze cooperative NOMA schemes in terms of achievable rate and outage probability whereas bit error probability (BEP) for those systems has not been studied well although it is one of the most important performance metrics. In this paper, we investigate the error performance of cooperative NOMA schemes where a decode-forward relay helps NOMA users. We derive exact BEP expressions in closed-form over Nakagami-m fading channels. All derived expressions are validated via computer simulations.
