Improvement of Cognitive Radio MAC Protocol in WLAN
Dong Can · Video Engineering · 2011
In this paper, a cognitive radio MAC protocol (CMAC) aiming at the characteristics of Cognitive Radio Networks, (CRN) is presented. This protocol can improve the success probability of communication and throughput by selecting the optimal channel between the cognitive nodes for data transmission and handing off to the sub-optimal channel automatically when the optimal channel is occupied by the primary user. Performance analysis shows that CMAC outperforms IEEE802.11 MAC in terms of throughput.