Power‐line communication (PLC) is a cost‐effective and promising communication technology for many smart grid applications. However, the presence of additive and multiplicative power line noises deteriorate the performance of a PLC system. In this paper, we propose signal space diversity (SSD) technique for a cooperative PLC system. The additive PLC channel noise is assumed to be Bernoulli‐Gaussian–distributed. The multiplicative PLC channel noise gain is characterized by log‐normal distribution. The closed‐form expressions of the average symbol error rate (SER) and outage probability of cooperative PLC system with SSD have been derived in this paper. It has been shown that the proposed cooperative PLC system results in achieving better spectral efficiency, as well as the reliability of the received signal.

中文翻译：

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具有信号空间分集的电力线协作通信系统性能分析

电力线通信（PLC）是一种经济高效且前景广阔的通信技术，适用于许多智能电网应用。但是，加性和乘性电源线噪声的存在会降低PLC系统的性能。在本文中，我们提出了一种用于协作PLC系统的信号空间分集（SSD）技术。附加的PLC通道噪声假定为伯努利·高斯分布。PLC通道乘法噪声增益的特征在于对数正态分布。本文推导了带有SSD的PLC协同系统的平均符号错误率（SER）和中断概率的闭式表达式。已经表明，所提出的协作PLC系统导致实现更好的频谱效率以及所接收信号的可靠性。