基于NS-3的PLC多频通信协议仿真平台设计与实现

针对缺乏电力线载波通信协议评估、验证环境的问题,提出并实现了一种基于网络仿真器NS-3的电力线载波多频通信协议仿真平台。基于NS-3仿真平台,研发了电力线载波通信模块,实现了物理层、媒体接入控制层及逻辑链路控制层功能,采用基于前导信号的三次握手机制实现工作频率认知,进而实现多频组网及多频通信。仿真平台不仅支持典型电力线载波通信网络拓扑配置,也支持实测信道衰减/噪声数据的导入。测试结果表明,仿真平台可实现不同场景下不同协议功能、关键算法及关键参数的仿真和验证,支持节点接入率、吞吐量等网络性能的统计,为电力线载波多频通信协议的研究提供了有力的工具。

Design and Implementation of NS-3 Based PLC Multi-Frequency Protocol Simulation Platform

A power line communication (PLC) multi-frequency protocol simulation platform based on NS-3 network simulator is proposed to deal with the lack of evaluation and verification environment for PLC protocol. Based on NS-3, PLC module is developed, which contains the physical layer, medium access control (MAC) layer and logic link control (LLC) layer functions. Based on the three-handshake of preambles, PLC module can support multi-frequency networking. Besides, the proposed PLC protocol simulation platform can suport for typical network topology and attenuation configuration, and could import measured attenuation and noise data. The test results shows that the proposed PLC multi-frequency protocol simulation platform could simulate and verfiry different MAC functions, key algorithms and parameters in different scenarios, and could evaluate nodes access probability, throughput, and latency performance, and so on, it is a powerful tool for the study of multi-frequency PLC protocol.