中文摘要：

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.

英文摘要：

Most studies only study for the lifetime of First Node Died Time（FNDT） and delay,The lifetime of All Node Died Time and the network delay are analyzed in this paper.The main contribution related to this article are as follows：（1）The method of computing the All Node Died Time is given for the flat Wireless sensor nework（WSNs）;（2） The law and the calculation method of network delay is given which from the FNDT to ANDT;（3） The optimization method for the ANDT and network delay Tradeoffs is proposed.The optimization radius and the level of the node transmitting can be get.This analysis give a better insight of the law of wireless sensor networks ANDT and delayed,and enhance the network performance.This work can give optimization parameter selection method for sensor network design,deployment and optimization to provide better guidance.