Journal of Jishou University(Natural Sciences Edition) ›› 2023, Vol. 44 ›› Issue (3): 34-38.DOI: 10.13438/j.cnki.jdzk.2023.03.005

• Computer and communication • Previous Articles     Next Articles

Optimal Multiband Collaborative Spectrum Sensing Algorithm Based on Constrained PSO Algorithm

TIAN Chong,LIU Tingting,TAN Zhewen,TAN Yuhao,LEI Kejun,YANG Xi   

  1. (College of Communication and Electronic Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2023-05-25 Published:2023-06-16

Abstract: For the difficulties in controlling the total interference of the system with unconstrained PSO algorithm,an optimal multiband cooperative spectrum sensing method based on constrained Particle Swarm Optimization (PSO) algorithm is proposed.This algorithm transforms the constrained optimization problem into an unconstrained optimization problem by introducing a penalty function.Compared with the traditional solutions based on unconstrained PSO algorithm,the proposed constrained PSO algorithm can effectively solve the constrained multiband cooperative spectrum sensing optimization problem,and the optimal solution meets the constraints to avoid excessive total interference.

Key words: cognitive radio, collaborative spectrum sensing, constrained, particle swarm optimization

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