基于功率分配算法的WSN安全路由连接概率优化分析

Analysis on Optimization of WSN Secure Routing Connection Probability Based on Power Distribution Algorithm

为了提高WSN安全路由的计算能力,提出了一种基于功率分配算法的WSN安全路由连接概率优化方法。仿真优化分析得到:当网络内含有更多的节点数时算法路由传输功率减小。当节点数量增加后,各算法计算得到路由跳数也更加接近,获得更加接近的总功率。JPAI算法达到了比SRI算法与FAT算法更低的传输功率,各误码率状态下的JPAI算法传输总功率可以形成比SRI算法与FAT算法更低的总功率。在更大的网络规模下,所有算法模式下的路由安全连接概率都提高。相对传统算法,JPAI算法可以实现增强网络连接安全性以及减小系统运行功率。在较低的窃听者密度条件下,各算法达到了相近的安全连接概率,JPAI算法则能够有效规避窃听情况并完成功率的有效调整。

An optimization method based on the power distribution algorithm was proposed for the WSN secure routing connection probability to improve the computing ability of WSN secure routing.As shown through simulation optimization analysis,the algorithm routing transmission power came down if the network contained more nodes.After the number of nodes increased,the numbers of routing hops calculated by each algorithm became closer to each other and a closer total power could be obtained.JPAI algorithm achieved still lower transmission power than SRI algorithm or FAT algorithm,and the total transmission power of JPAI algorithm under different conditions of bit error rate could form an even lower total power than SRI or FAT algorithm.Under the condition of a larger network scale,secure routing connection probabilities were raised for all algorithm modes.Compared with the traditional algorithm,JPAI algorithm could enhance network connection security and reduce the operating power of the system.In the case of a relatively low eavesdropper density,each algorithm achieved a similar secure connection probability,while JPAI algorithm could effectively avoid eavesdropping and complete effective power adjustment.