RESEARCH ON KEY NODES OF WIRELESS SENSOR NETWORK BASED ON COMPLEX NETWORK THEORY  

作　　者：Ma Chuang Liu Hongwei Zuo Decheng Wu Zhibo Yang Xiaozong 

机构地区：[1]School of Computer science and technology, Harbin Institute of Technology, Harbin 150001, China

出　　处：《Journal of Electronics(China)》2011年第3期396-401,共6页电子科学学刊（英文版）

基　　金：Supported by the National High Technology Research and Development Program of China(No.2008AA01A201);the National Natural Science Foundation of China(No.60503015)

摘　　要：On the basis of complex network theory, the issues of key nodes in Wireless Sensor Networks (WSN) are discussed. A model expression of sub-network fault in WSN is given at first; subsequently, the concepts of average path length and clustering coefficient are introduced. Based on the two concepts, a novel attribute description of key nodes related to sub-networks is proposed. Moreover, in terms of node deployment density and transmission range, the concept of single-point key nodes and generalized key nodes of WSN are defined, and their decision theorems are investigated.On the basis of complex network theory, the issues of key nodes in Wireless Sensor Networks （WSN） are discussed. A model expression of sub-network fault in WSN is given at first; subsequently, the concepts of average path length and clustering coefficient are introduced. Based on the two concepts, a novel attribute description of key nodes related to sub-networks is proposed. Moreover, in terms of node deployment density and transmission range, the concept of single-point key nodes and generalized key nodes of WSN are defined, and their decision theorems are investigated.

关 键 词：Wireless Sensor Network (WSN) Key nodes Fault model Complex network theory 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]