中文摘要：

针对低压电力线载波通信可靠性低的问题，提出了人工蛛网通信网络模型，并建立了相应的数学模型。将三相配电网的MAC层转化成由多个人工蛛网组成的逻辑拓扑。详细叙述了组网过程，提出了中心节点选取算法，制定了自动路由协议。以两状态马尔科夫模型表征用户终端的工作状态，模拟实际中由于信道变化产生的终端节点通信失效。针对数据冲突率、通信流量、链路利用率等方面进行建模仿真对比实验，仿真结果表明新的组网方式及路由协议在提高电力线载波通信可靠性方面具有较大优势。

英文摘要：

Power Line Communication （PLC） over low-voltage distribution has the problem that the communication reliability is low. In order to solve this problem, a novel communication network model based on artificial cobweb is established and corresponding mathematical model is presented. The Media Access Control layer （MAC） of three-phase distribution network is turned into a logical topology which is composed of multiple artificially cobwebs. The networking process of the new model is thoroughly discussed, the algorithm of selecting the center node is proposed, and a new automatic routing protocol is established. A two-state transition Markov model is used to simulate a terminal node and the situation of communication failure because of channel changes in practice. Comparison experiments of modeling simulation are conducted in view of data conflict rate, communication flow, and link utilities, and the result has proven the new network model and routing protocol have advantage in improving communication reliability of PLC networks.