Moment Converging Enabled Parametric Mapping for Channel Model Substitution

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2024-08-29 DOI:10.1109/LCOMM.2024.3451510

Rong Yang;Shuping Dang;Jia Ye;Peng Wang

引用次数: 0

Abstract

Channel model substitution (CMS) is an analytical technique aiming to replace a computationally complex channel model with a simpler substitute. The utility of CMS is affected by the parametric relations between the original channel model and its substitute. In this letter, we propose a moment converging criterion to enable parametric mapping for a general CMS problem. Instead of solving an equation system to yield the analytical solutions by moment matching, we formulate and minimize the moment mean squared error (MMSE) between the original channel model and its substitute to obtain parametric mapping relations. The moment converging enabled parametric mapping approach offers a surrogate way to enable parametric mapping for CMS, which is, in particular, helpful when the moment matching equation system is too cumbersome to solve and/or has no feasible solution. Taking three CMS applications as examples, the effectiveness and efficiency of the moment converging enabled parametric mapping for CMS are verified.

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用于通道模型替换的时刻收敛启用参数映射

信道模型替换（CMS）是一种分析技术，旨在用一种更简单的替代品替换计算复杂的信道模型。原始信道模型与其替代品之间的参数关系会影响 CMS 的效用。在这封信中，我们提出了一个时刻收敛准则，以实现一般 CMS 问题的参数映射。我们不再通过矩匹配求解方程系统来得到解析解，而是提出并最小化原始信道模型与替代模型之间的矩均方误差（MMSE），从而得到参数映射关系。矩收敛参数映射方法为 CMS 的参数映射提供了一种替代方法，尤其是在矩匹配方程系统求解过于繁琐和/或没有可行解的情况下，这种方法很有帮助。以三个 CMS 应用为例，验证了矩收敛启用参数映射在 CMS 中的有效性和效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.