基于耦合因子的WSN无标度路径能耗优化算法

Scale-free Algorithm in WSN Based on Coupling Coefficients with Optimization of Path Energy Consumption

在大规模无线传感器网络中针对能耗不均衡问题,建立多跳路径能量优化模型,得到路径能量消耗随节点度变化规律,求出最优的节点度取值,并引入耦合因子参数构建网络形成无标度拓扑结构,提出一种基于耦合因子的WSN无标度路径能耗优化算法.仿真实验结果表明分析表明此算法具有较好容错性能,生成的网络拓扑结构节点度分布服从幂律,具有无标度性,而且可以减少能量消耗并延长网络生命周期.

For the issue of path energy imbalance consumption in large- scale sensor network,an optimization model of network path energy consumption based on the mode of multi- hop was established,and the law of the change of the energy consumption of the path was obtained. According to the optimal value of nodes,the network topology was built based on the coupling factor parameter which could control the network average node degree,and a scale- free topology control algorithm EEBC having the characteristics that could minimize the path energy consumption was put forward. The performance analysis indicates that the algorithm has good fault- tolerant performance and the node degree distribution follows the power law. The simulation results show that the algorithm also reduces the path energy consumption in the network and then prolongs the network life.