基于融合判决的智能用电无线传感器网络拥塞避免路由算法

Congestion Avoidance Routing Algorithm Based on Fusion Judgment in Wireless Sensor Networks Oriented to Intelligent Power Utilization

作为智能用电通信网的补充和延伸,具有集中式流量特性的无线传感器网络容易出现拥塞,影响智能用电通信业务的服务质量。针对该问题,提出一种基于融合判决的拥塞避免路由算法。该算法以前向传播邻居节点的缓存队列长度、剩余能量和到基站距离三个特征参量为依据建立隶属度函数,对其进行融合判决并根据判决结果选择下一跳节点。仿真结果表明,与现有的典型拥塞控制路由算法相比,该算法有效提高了无线传感器网络吞吐量,并延长了网络的生命周期。

As the supplement and extension of the communication network for intelligent power utilization, wireless sen- sor networks with the characteristics of centralized traffic pattern are prone to congestion, which affects the quality of serv- ice for communication business. To solve this problem, a congestion avoidance routing algorithm based on fusion judgment （CARF） is presented. This algorithm first built membership function according to the evaluation parameters of node queue length, residual energy and distance between node and sink, and then made fusion judgment, which served as ba- sis for the selection of the next hop. Simulation results showed that, the proposed scheme performed better on the network throughput ratio and prolonged the network lifetime compared with the existing typical routing algorithms.