Computer Science ›› 2015, Vol. 42 ›› Issue (Z11): 258-262.

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Spectrum Allocation and Power Control Based on Harmony Search Algorithm in Cognitive Radio Network

YANG Jin-song, ZENG Bi-qing and HU Pian-pian   

  • Online:2018-11-14 Published:2018-11-14

Abstract: Aiming at the problem of the power control and spectrum allocation processes generating interference with each other in cognitive radio network,we proposed a power control and spectrum allocation algorithm based on harmony search in cognition radio network.With the comprehensive analysis of the conditions of various constraints and influence in the processes of spectrum allocation and power control,system model which joints power control and spectrum allocation is established.Coding scheme of harmony search algorithm was designed based on the characteristics of system model,and the algorithm chose the method of multi-objective optimizations to deal with model in complex constraints by giving feasible solutions appropriate priority weights.Simulation experiments show that the algorithm can solve the spectrum allocation and power control problems very well in cognitive radio network.

Key words: Cognitive radio network(CRN),Multi-objective optimization, Spectrum allocation,Power control,Harmony search

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