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arXiv 2403.18129eess.SP
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对电力线通信中多径传播随机模型的深入探讨

A Close Examination of the Multipath Propagation Stochastic Model for Communications over Power Lines

Universidad de Málaga(马拉加大学);University of Udine(乌迪内大学);Alpen-Adria-Universität Klagenfurt(阿尔卑斯-亚得里亚大学克拉根福分校)

José A. Cortés, Alberto Pittolo, Irene Povedano, Francisco J. Cañete, Andrea M. Tonello

AI总结:

本文提出了一种拟合程序,用于参数化室内宽带PLC中多径传播模型,分析其参数统计特性及对通信性能的影响。

摘要:

本文聚焦于室内宽带电力线通信(PLC)中多径传播模型(MPM)的参数化问题,该模型迄今为止是以启发式方式建立的。MPM模型最初是在户外通道的20 MHz频段内提出,用于电力线通信(PLC)的户外通道。然而,当用于建模室内通道频率响应(CFR)时,其参数数量变得极其庞大,因为室内通道的频率选择性远高于户外通道,并且频段扩展到80 MHz。本文提出了一种拟合程序,以解决这个问题。该程序允许确定产生最佳拟合每个通道的大型单输入单输出(SISO)实验测量数据库的模型参数。然后分析了MPM参数的统计特性。研究揭示了模型参数与实际CFR主要特征(如频率选择性和平均衰减)之间的关系。它还估计了每个参数的概率密度函数(PDF),并为每个参数提出了一种拟合分布。此外,还探讨了模型主要参数之间的关系及其对PLC通信系统性能的影响。提供的结果对于开发基于MPM的室内宽带PLC模型具有帮助。

英文摘要:

This paper focuses on the parameterization of the multipath propagation model (MPM) for indoor broadband power line communications (PLC), which up to now has been established in an heuristic way. The MPM model was initially proposed in the PLC context for outdoor channels in the band up to 20 MHz, but its number of parameters becomes extremely large when used to model indoor channel frequency responses (CFR), which are much more frequency-selective than outdoor ones, and the band is extended to 80 MHz. This work proposes a fitting procedure that addresses this problem. It allows determining the model parameters that yield the best fit to each channel of a large database of single-input single-output (SISO) experimental measurements acquired in typical home premises of different European countries. Then, the statistics of the MPM parameters are analyzed. The study unveils the relation between the model parameters and the main characteristics of the actual CFR like the frequency selectivity and the average attenuation. It also estimates the probability density function (PDF) of each parameter and proposes a fitting distribution for each of them. Moreover, the relationship among the main parameters of the model, as well as their impact on the performance of PLC communication systems are also explored. Provided results can be helpful for the development of MPM-based models for indoor broadband PLC.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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