Spectrum Allocation Using Fuzzy Logic for Cognitive Radio Systems
Xiaoling Fu · Telecommunication Engineering · 2011
To analyse spectrum allocation issue more comprehensively and highlight the performances of effectiveness and fairness of the system,a spectrum allocation scheme using fuzzy logic for cognitive radio(CR) is proposed.First the concept of fuzzy logic system(FLS) is given,and then the FLS is used to comprehensively analyse the characteristics of the perceived idle spectrum and the secondary users,finally the idle spectrum is allocated to secondary users in accordance with system throughput maximum,fairness and random allocation criteria.Simulation results confirm the feasibility of scheme.