摘要
随着低碳经济的兴起,智能电网成为当前的研究热点.智能电网的底层通信以现有的电力线网络为基础,因此电力线网络的性能深刻影响智能电网的有效运行.针对电力线信道的特性,主要探讨智能电网中的电力线网络MAC协议的性能.文章先介绍非时隙ALOHA和1-坚持型CSMA协议的基本原理,然后采用OPNET,仿真了电力线网络分别采用非时隙ALOHA协议和1-坚持型CSMA协议时的网络性能.在电力线网络接入不同的用户数时,仿真用户数的变化对网络性能的影响;电力线网络的接入用户数目都为30,考虑网络受到电力线信道的时延和信道误比特率的影响,仿真电力线信道特性对电力线网络性能的影响.仿真结果为电力线网络MAC协议的研究提供了一定的参考.
With the rise of low-carbon economy,the smart grid has become the research focus.The communication in the smart grid is based on the existing power line network,and the power line network makes profound impact on the effective running of the smart grid.This paper discusses the performance of power line network using MAC protocol considering the characteristics of power line channel.Non-slotted ALOHA and 1-persistant CSMA protocol are introduced firstly,and the network performance is simulated using OPNET when the power line network separately takes non-slotted ALOHA protocol and 1-persistant CSMA protocol.The performance of the network is simulated when the numbers of access users are different in the power line network.The performance of the network is also simulated when the network is affected by the delay and the BER of the power line channel with 30 access users in the network.These simulation results provide useful advices to the research on the MAC protocol of power line network.
出处
《浙江工业大学学报》
CAS
2012年第1期50-54,共5页
Journal of Zhejiang University of Technology
基金
国家自然科学基金资助项目(50777057)
