Computer Science

Computer Science ›› 2024, Vol. 51 ›› Issue (6A): 230500138-5.doi: 10.11896/jsjkx.230500138

• Network & Communication • Previous Articles     Next Articles

Dynamic Spectrum Allocation Strategy for Cognitive Radio Based on Game Theory

TENG Zhijun1,2, ZHANG Ailing2, FU Yushan2   

  1. 1 Key Laboratory of Modern Power System Simulation and Control & Renewable Energy Technology,Ministry of Education(Northeast Electric Power University),Jilin 132012,China
    2 School of Electrical Engineering,Northeast Electric Power University,Jilin 132012,China
  • Published:2024-06-06
  • About author:TENG Zhijun,born in 1973,doctor,professor.His main research interest includes wireless communication techno-logy.
    ZHANG Ailing,born in 1998,master.Her main research interest includes cognitive radio spectrum allocation.

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Abstract: For the defects of low system revenue and unsatisfactory spectrum utilization in the process of spectrum allocation in wireless network,the interference price is introduced to control the interference caused by cognitive users’ transmission power,a spectrum leasing model is established,and a dynamic spectrum allocation strategy under non-cooperative game is proposed to improve spectrum utilization and system revenue.Creating the utility function under the non-cooperative game,deducing the Nash equilibrium solution,and determining the utility weight factor after weighing the network utility.Experimental results show that the optimal transmission power of the proposed algorithm is small,the spectrum utilization rate is high,and better system benefits can be obtained.

Key words: Cognitive radio, Game theory, Spectrum allocation, Nash equilibrium, Utility function

CLC Number: 

  • TN925
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