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终端数据采集与传输是智能电网的关键环节之一,为防止数据拥塞和丢包,可以在终端无线网络中引入协作传输技术。基于排队论的性质和方法,在协作传输中,提出了两种中继服务的排队模型,对一个排队队列模型和多个排队队列模型的系统性能进行了比较。仿真结果表明,单个队列的M/M/C队列模型网络时延性能上要优于多个队列的M/M/1队列模型,增加中继站的数量在一定范围内可以提高系统性能,但要合理部署中继站数量以取得最佳性价比。
Terminal data acquisition and transmission is one of the key aspects of smart grid. To prevent data congestion and packet loss, cooperative transmission technology can be introduced in the terminal wireless network. Based on the nature and method of queuing theory, two kinds of queuing models for relay service are proposed in collaborative transmission. The system performances of one queuing queue model and several queue queuing models are compared. The simulation results show that the M / M / C queue model of a single queue is better than the multi-queue M / M / 1 queue in network delay performance. Increasing the number of the relay stations within a certain range can improve the system performance, but it is reasonable Deploy the number of relay stations for best value for money.