论文标题
在存在添加剂广义高斯噪声的情况下，非正交的多个访问
Non-Orthogonal Multiple Access in the Presence of Additive Generalized Gaussian Noise
论文作者
论文摘要
在这封信中，我们在瑞利褪色通道上研究了普通高斯噪声（GGN）的假设下的非正交多重访问（NOMA）的性能。具体来说，我们考虑使用$ L $用户的Noma系统，每个系统都配备了单个天线，并为成对误差概率（PEP）提供了精确的表达式。随后，派生的PEP表达式被用来得出与位错误率（BER）结合的联合，并量化Noma用户在存在添加剂白（AW）GGN的情况下实现的多样性顺序。利用派生的PEP表达和联合结合，对AWGGN的不同特殊情况进一步评估了NOMA用户的错误率性能。通过模拟结果证实的衍生分析结果表明，GGN $（α）$的塑料参数对Noma用户的多样性增长的影响可忽略不计，尤其是对于大$α$值。因此，与加性白色高斯噪声（AWGN）一样，最大可实现的多样性顺序取决于用户的订单。
In this letter, we investigate the performance of non-orthogonal multiple access (NOMA), under the assumption of generalized Gaussian noise (GGN), over Rayleigh fading channels. Specifically, we consider a NOMA system with $L$ users, each of which is equipped with a single antenna, and derive an exact expression for the pairwise error probability (PEP). The derived PEP expression is subsequently utilized to derive a union bound on the bit error rate (BER) and to quantify the diversity orders realized by NOMA users in the presence of additive white (AW) GGN. Capitalizing on the derived PEP expression and the union bound, the error rate performance of NOMA users is further evaluated for different special cases of AWGGN. The derived analytical results, corroborated by simulation results, show that the shaping parameter of the GGN $(α)$ has negligible effect on the diversity gains of NOMA users, particularly for large $α$ values. Accordingly, as in the case of additive white Gaussian noise (AWGN), the maximum achievable diversity order is determined by the user's order.
