一种无线传感器网络性能综合评价方法

摘要

无线传感器网络(WSNs)的性能综合评价对于网络规划和管理具有重要意义.建立基于多指标的网络性能综合评价模型,采用熵权和线性加权组合方法计算得到不同模拟场景下的网络性能综合评价值.建立不同网络拓扑结构仿真实例,通过改变节点规模和网络负载模拟实际不同应用,选用网络延时和吞吐量作为性能度量,获取不同拓扑结构的性能数据.分析结果表明:多指标综合评价模型可避免综合评估中的人为因素影响,能够客观准确地对网络综合性能进行综合评估,有针对性地采用合适的拓扑结构可以大大提高网络综合性能.%Comprehensive evaluation on wireless sensor networks(WSNs) performance is of great significance for network planning and management.Build comprehensive evaluation model network performance based on multiple index and use the entropy weight and linear weighting combinatorial method to get the value of comprehensive evaluation of performance under different simulation scenarios.Establish simulation example of different network topology structures,simulate different applications by changing node size and network load.Choose network delay and throughput as performance metrics to obtain the performance datas of different topology structures.Analysis results show that multi-index comprehensive evaluation model can avoid human foctor influence and take a comprehensive assessment of comprehensive performance of the network accurately.Targetedly adopting appropriate topology structure can greatly improve comprehensive performance of the network.