Title :
CSMA/CA-based MAC protocol in Cognitive Radio network
Author :
Yanchang Liu ; Shaohai Hu ; Yang Xiao ; Xiaoli Liu ; Guangzhi Qu ; Kiseon Kim
Author_Institution :
Inst. of Inf. Sci., Beijing Jiaotong Univ., Beijing, China
Abstract :
Different from the MAC of IEEE 802.11, the application of IEEE 802.22 suffers the uncertain spectrum and frequency width, which can not ensure the access of mobile users to be valid. To solve the problem, in this paper, we modify the CSMA/CA mechanism in order to make it suit the Cognitive Radio environments, in which the spectrum can be effectively used. We validate the modification by numerical analysis.
Keywords :
carrier sense multiple access; cognitive radio; radio networks; wireless LAN; CSMA/CA-based MAC protocol; cognitive radio network; mobile users; numerical analysis; CSMA/CA; Cognitive Radio; IEEE 802.22; MAC; throughput rate;
Conference_Titel :
Wireless, Mobile and Multimedia Networks (ICWMNN 2010), IET 3rd International Conference on
Conference_Location :
Beijing
DOI :
10.1049/cp.2010.0643
