CSMA/CA-based MAC protocol in cognitive radio network
CSMA/CA-based MAC protocol in cognitive radio network
- Author(s): Yanchang Liu ; Shaohai Hu ; Yang Xiao ; Xiaoli Liu ; Guangzhi Qu ; Kiseon Kim
- DOI: 10.1049/cp.2010.0643
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- Author(s): Yanchang Liu ; Shaohai Hu ; Yang Xiao ; Xiaoli Liu ; Guangzhi Qu ; Kiseon Kim Source: IET 3rd International Conference on Wireless, Mobile and Multimedia Networks (ICWMMN 2010), 2010 p. 163 – 167
- Conference: IET 3rd International Conference on Wireless, Mobile and Multimedia Networks (ICWMMN 2010)
- DOI: 10.1049/cp.2010.0643
- ISBN: 978-1-84919-240-8
- Location: Beijing, China
- Conference date: 26-29 Sept. 2010
- Format: PDF
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.
Inspec keywords: cognitive radio; carrier sense multiple access; radio networks; wireless LAN
Subjects: Multiple access communication; Radio links and equipment; Protocols; Local area networks
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