低压电力通信系统中的人工蛛网及可靠性和性能计算与分析

Calculation and analysis of reliability and performance for artificial cobweb network in low-voltage power line communication system

低压电力通信系统中单层人工蛛网相比于传统的环网络结构具有较高的全端可靠性,而网络可靠性和网络性能的评估相辅相成。主要研究低压电力下单层人工蛛网可靠性和性能的分析与计算问题。对树形网络、星形网络、单层环网及单层蛛网在连通比及直径限制下的可靠性进行分析比较,通过直径限制的方法保证了网络的可靠性及稳定性,而对连通比的限制则保证了网络的性能。仿真结果显示人工蛛网拓扑结构在连通比和直径限制下具有较高的通信可靠性及较好的性能。

The single-layer artificial cobweb network structure in low-voltage power line communication(LVPLC)system has higher terminal reliability in comparison with the traditional ring network structure,however the network reliability is supplementary to network performance evaluation.The analysis and calculation of reliability and performance for single-layer artificial cobweb network in LVPLC system are studied.The reliability of tree network,star network,single-layer loop network and single-layer artificial cobweb network is analyzed and compared under the constraints of connectivity ratio and diameter.The diameter constraint method is used to ensure the reliability and stability of the network,and the restriction on the connectivity ratio is to ensure the network performance.The simulation results show that the topology structure of the artificial cobweb network has high communication reliability and perfect performance under the constraints of connectivity ratio and diameter.