Computer Science ›› 2014, Vol. 41 ›› Issue (7): 184-186.doi: 10.11896/j.issn.1002-137X.2014.07.038

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Cognitive Radio Spectrum Access Energy Efficiency Algorithm

CHEN Ming   

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

Abstract: Cognitive radio technology and energy efficiency communication design have made system to respectively achieve high spectrum efficiency (SE) and energy efficiency (EE). However in the cognitive radio system, there is little research about not only keeping high spectrum efficiency,but also making the relatively high energy efficiency.Aiming at this problem,based on the orthogonal frequency division multiplexing (OFDM) cognitive radio network,considering the average energy efficiency and spectrum access scheme in spectrum efficiency to fold,this paper proposed a low complexity suboptimal heuristic algorithm.The simulation results show that the proposed algorithm can significantly save energy compared with other existing algorithms,and has a larger advantage in terms of performance and complexity.

Key words: Cognitive radio,Energy efficiency,Spectrum access,OFDM

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