Energy-efficient spectrum-aware clustering for cognitive radio sensor networks

作     者：ZHANG HuaZi 1,2,ZHANG ZhaoYang 1,2* & YUEN Chau 3 1 Department of Information Science and Electronic Engineering,Zhejiang University,Hangzhou 310027,China 2 Zhejiang Provincial Key Laboratory of Information Network Technology,Hangzhou 310027,China 3 Singapore University of Technology and Design,Singapore 

出 版 物：《Science Bulletin》 (科学通报(英文版))

年 卷 期：2012年第Z2期

页      面：3731-3739页

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：supported by the National Basic Research Program of China (2009CB320405 and 2012CB316104) the National Natural Science Foundation of China (60972057) the Supporting Program for New Century Excellent Talents in Universities (NCET-09-0701) 

主　　题：cognitive radio sensor network constrained clustering energy efficient distributed spectrum-aware clustering 

摘      要：As a smart combination of cognitive radio networks and wireless sensor networks,recently introduced cognitive radio sensor network(CRSN) poses new challenges to the design of topology maintenance techniques for dynamic primary-user *** paper aims to provide a solution to the energy-efficient spectrum-aware CRSN clustering ***,we design the clustered structure,establish a network-wide energy consumption model and determine the optimal number of *** then employ the ideas from constrained clustering and propose both a centralized spectrum-aware clustering algorithm and a distributed spectrum-aware clustering(DSAC) *** extensive simulations,we demonstrate that DSAC can effectively form clusters under a dynamic spectrum-aware ***,DSAC exhibits preferable scalability and stability with its low complexity and quick convergence under dynamic spectrum variation.