Abstract

Optimization of spectral efficiency and quality of service can attain functional channel capacity for a wireless communication system. The channel capacity analysis over a fading channel is essential for realizing this goal. A recently developed model called Beaulieu–Xie fading channel model acquires the flavors of flexibility from Nakagami-m fading parameters and the non-centralized chi-distribution of the Rician fading model, which characterizes both line of sight and non-line of sight channels. The current work presents the channel capacity analysis with adaptive transmission techniques over Beaulieu–Xie fading channels. Various adaptive transmission schemes, such as channel inversion with a fixed-rate, truncated channel inversion with a fixed-rate, and optimal rate adaptation, are evaluated for the Beaulieu–Xie fading channel model. Additionally, the performance of the wireless system in terms of the bit error rate of coherent and non-coherent modulation is derived mathematically for this fading channel. Lastly, the mathematical expressions derived are verified with the help of Monte–Carlo simulation or standard results available in the literature.

中文翻译：

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Beaulieu-Xie衰落下各种自适应传输方案的信道容量分析和BER性能

摘要

频谱效率和服务质量的优化可以获得无线通信系统的功能信道容量。衰落信道上的信道容量分析对于实现这一目标至关重要。最近开发的称为 Beaulieu-Xie 衰落信道模型的模型从 Nakagami-m 衰落参数和 Rician 衰落模型的非集中式 chi 分布中获得了灵活性的味道，该模型同时表征了视线和非视线信道。目前的工作提出了在 Beaulieu-Xie 衰落信道上使用自适应传输技术进行信道容量分析。针对 Beaulieu-Xie 衰落信道模型评估了各种自适应传输方案，例如固定速率的信道反转、固定速率的截断信道反转和最优速率自适应。此外，无线系统在相干和非相干调制的误码率方面的性能是针对这个衰落信道从数学上推导出来的。最后，在蒙特卡罗模拟或文献中可用的标准结果的帮助下验证了导出的数学表达式。