一种簇化WSNs时延及功耗分析方法

Analysis on delay and energy consumption of clustered WSNs

针对无线传感网络(WSNs)的功率消耗与数据传输时延不均衡的问题,提出1种基于簇化WSNs的优化模型,旨在满足不同的可靠等级条件下,最小化端到端时延和功率消耗:建立目标函数;并应用典型的交互式的线性和通用优化求解器(LINGO)15.0软件求解优化问题;然后分析在不同簇尺寸和可靠等级条件下可实现的最小时延和功率的条件。实验结果表明,当维持至少90%的可靠率时,拥有20个节点的簇的功率消耗可低至4.2 mW。

Aiming at the problem that it is unbalanced for the power consumption and data transmission delay of wireless sensor networks(WSNs),the paper proposed an optimal model based on clustered WSNs for minimizing end-to-end delay and power consumption under different reliability levels:target function was set up;and LINGO 15.0 software package was used to solve the optimization problems;then the conditions of minimum delay and power consumption were analyzed under different cluster sizes and reliability levels.Experimental result showed that the power consumption of a cluster with 20 nodes could be as low as 4.2 mW when maintaining at least 90%reliability rate.