Analysis of distribution uniformity of nodes in wireless sensor networks  

作　　者：张振江 

机构地区：[1]School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, P.R. China

出　　处：《High Technology Letters》2007年第1期65-68,共4页高技术通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China （No. 60572035）

摘　　要：Wireless sensor networks have several special characteristics which make against the network coverage, such as shortage of energy, difficulty with energy supply and so on. In order to prolong the lifetime of wireless sensor networks, it is necessary to balance the whole network load. As the energy consumption is related to the situation of nodes, the distribution uniformity must be considered. In this paper, a new model is proposed to evaluate the nodes distribution uniformity by considering some parameters which include compression discrepancy, sparseness discrepancy, self discrepancy, maximum cavity radius and minimum cavity radius. The simulation results show that the presented model could be helpful for measuring the distribution uniformity of nodes scattered randomly in wireless sensor networks.

关 键 词：distribution uniformity compression discrepancy sparseness discrepancy LIFETIME 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]