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The Journal of The Korea Institute of Intelligent Transport Systems Vol.8 No.3 pp.100-111
Cognitive Radio 시스템에서 유전자 알고리즘 기반 전력 제어 및 동적 주파수 선택방법
Power Control and DFS Based on Genetic Algorithm in Cognitive Radio System
Abstract
Cognitive radio is an advanced technology for efficient utilization of under-utilized spectrum via spectrum sensing. CR users should move from current allocating channel to empty channel to avoid the interference to the primary user if the primary user is allocating that channel. Thus, CR system cannot support the CR user's QoS(Quaiity of Service). In this paper, we propose dynamic frequency selection method based on Genetic Algorithm with power control. It is to find the optimization channel for satisfying various CR user's needs with the power control method to minimize the CR user's interference to the primary user. And, we propose the Genetic Algorithm(GA) which determines the best configuration for CR communication systems. The computer simulation results show that the proposed method guaranteed the primary user's decodability and the optimized solution for various channel status.
