An Energy-Driven Adaptive Cluster-Head Rotation Algorithm for Cognitive Radio Network

2010 ◽  
Author(s):  
Guisen Xu ◽  
Xuezhi Tan ◽  
Shouming Wei ◽  
Shizeng Guo ◽  
Bin Wang
Keyword(s):  
Cognitive Radio ◽  
Cognitive Radio Network ◽  
Cluster Head ◽  
Head Rotation ◽  
Radio Network ◽  
Cluster Head Rotation

A Cluster Head Rotating Threshold for Cognitive Radio Network

2010 ◽  
Vol 171-172 ◽  
pp. 211-214
Author(s):  
Gui Sen Xu ◽  
Xue Zhi Tan
Keyword(s):  
Cognitive Radio ◽  
Energy Efficient ◽  
Cognitive Radio Network ◽  
Control Method ◽  
Cluster Head ◽  
Residual Energy ◽  
Radio Networks ◽  
Radio Network ◽  
Head Node ◽  
Rotation Energy

Cluster-based topology is an energy-efficient topology control method in cognitive radio networks. The cluster head node depletes energy faster than cluster member node and the rotation of cluster head node is needed to balance the energy consumption for the whole network. Aimed at the problem of unbalanced residual energy of each node caused by cluster heads and cluster members in wireless cognitive radio network, a novel algorithm named cluster head rotating threshold (CHRT) is presented. In the proposed algorithm, rotation energy threshold is estimated using cluster head real-time energy load. The simulation results show that comparing with LEACH and EDAC, CHRT can realize the more network lifetime than the others.

An Energy-Efficient Model of Random Cognitive Radio Network: Rayleigh-Lognormal Environment

2020 ◽  
Vol 114 (3) ◽  
pp. 1963-1981
Author(s):  
Saifur Rahman Sabuj ◽  
Tabassum E Nur ◽  
Masanori Hamamura
Keyword(s):  
Cognitive Radio ◽  
Energy Efficient ◽  
Cognitive Radio Network ◽  
Radio Network
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