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针对大多数研究只分析了平面无线传感器网络第一个节点死亡(First Node Died Time,FNDT)网络寿命与延迟的情况,本文分析了网络全部节点死亡(All Node Died Time,ANDT)时网络寿命与延迟的情况.本文得到的相关工作如下:(1)分析得到了平面无线传感器网络全部节点死亡(All Node Died Time,ANDT)时网络寿命的计算方法;(2)给出了了网络从FNDT到ANDT过程网络延迟的变化规律与发展情况,以及计算方法;(3)提出了网络最大ANDT与延迟间的折中优化方法,从而得到网络性能优化时的节点发射半径以及节点调制级数的选取.本文分析结果较好的揭示了平面无线传感器网络ANDT与延迟的发展规律,并给出了提高网络性能的优化参数选取方法,可为传感器网络的设计、部署与优化提供较好的指导作用.
For the most of the studies, we only analyze the life and delay of the first node dead time (FNDT) network in planar wireless sensor networks. This paper analyzes the relationship between network lifetime and AND (All Node Died Time) (1) Analyze and calculate the network lifetime of All-Node Died Time (ANDT) in planar WSNs; (2) Give the calculation of network lifetime from FNDT to (3) Propose the compromise optimization method between the maximum ANDT of the network and the delay, so as to obtain the node radiating radius and the modulation order of the node when the network performance is optimized. The analysis result of this paper reveals the development rule of ANDT and delay in planar WSNs better and gives a method to choose optimal parameters to improve the performance of the WSN. It can provide a good guide for the design, deployment and optimization of WSNs.