A Survey on Node Clustering in Cognitive Radio Wireless Sensor Networks

被引:34
作者
Joshi, Gyanendra Prasad [1 ]
Kim, Sung Won [1 ]
机构
[1] Yeungnam Univ, Dept Informat & Commun Engn, 280 Daehak Ro, Gyongsan 38541, Geongbuk, South Korea
基金
新加坡国家研究基金会;
关键词
node clustering; cognitive radio; cognitive radio wireless sensor networks; ENERGY-EFFICIENT; ALGORITHMS; SCHEME; SIGNAL;
D O I
10.3390/s16091465
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Cognitive radio wireless sensor networks (CR-WSNs) have attracted a great deal of attention recently due to the emerging spectrum scarcity issue. This work attempts to provide a detailed analysis of the role of node clustering in CR-WSNs. We outline the objectives, requirements, and advantages of node clustering in CR-WSNs. We describe how a CR-WSN with node clustering differs from conventional wireless sensor networks, and we discuss its characteristics, architecture, and topologies. We survey the existing clustering algorithms and compare their objectives and features. We suggest how clustering issues and challenges can be handled.
引用
收藏
页数:19
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