Operational algorithm for wireless communication systems using cognitive radio

Recently the use of mobile devices is increasing and mobile traffic is growing rapidly. In order to deal with the massive traffic, cognitive radio (CR) is applied to efficiently use the limited spectrum resources. In this paper, we propose a CR operational algorithm for mobile cellular systems, which is applicable to the multiple secondary user environment. Performance of the proposed algorithm is evaluated when it is applied to a limited number of TV white space (TVWS) channels. The effect of sensing error probability on the system performance is also discussed.