On Outage Performance of Terahertz Wireless Communication Systems
On Outage Performance of Terahertz Wireless Communication Systems
复制标题
太赫兹无线通信系统的中断性能研究
DOI：
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发表时间：
2022
影响因子：
8.3
通讯作者：
Mohamed
中科院分区：
文献类型：
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作者：
Jia Ye;Shuping Dang;Guoqing Ma;Osama Amin;B. Shihada;Mohamed
为了加快太赫兹通信的研究进展，本文采用复合信道模型对太赫兹通信系统的中断性能进行了分析。与现有的信道模型不同，复合信道模型通过复合分布将扩频损耗、分子吸收损耗、阴影和多径衰落的影响综合考虑在内。通过使用该模型，我们在数学可跟踪性和现实太赫兹信道的保真度之间保持了中断性能分析的平衡。具体而言，通过利用复合通道模型，中断性能分析可以摆脱依赖于现场测量和射线跟踪评估的复杂案例特定通道建模。为了方便所提出的信道模型的应用，我们还设计了一种基于最大似然估计（MLE）的复合信道模型信道参数估计方法。本文以封闭形式给出了复合通道模型的中断性能分析结果，并用数值结果进行了验证。
To expedite research progress on terahertz (THz) communications, we analyze the outage performance of THz communication systems by a compound channel model in this paper. Different from existing models, the compound channel model incorporates the effects of spreading loss, molecular absorption loss, shadowing, and multi-path fading via a composite distribution. By using this model, we maintain an equilibrium of the outage performance analysis between mathematical tractability and the fidelity of realistic THz channels. Specifically, by utilizing the compound channel model, outage performance analysis can get rid of sophisticated case-specific channel modeling relying on field measurement and the ray-tracing assessment. To facilitate the application of the proposed channel model, we also design a maximum likelihood estimation (MLE) based channel parameter estimation approach for the compound channel model. The analytical results of outage performance by using the compound channel model are given in closed form and verified by numerical results.