A MAC Protocol by Applying Staggered Channel Model for Cognitive Radio Networks
學年 102
學期 2
出版(發表)日期 2014-04-01
作品名稱 A MAC Protocol by Applying Staggered Channel Model for Cognitive Radio Networks
作品名稱(其他語言)
著者 C. Y. Chang; T. L. Wang; C. Y. Lin
單位 資訊工程學系暨研究所
出版者
著錄名稱、卷期、頁數 Wireless Networks 20(7), pp.1873-1888
摘要 Cognitive radio (CR) is a novel and promising spectrum management technique, which aims to cope with the spectrum scarcity problem occurring in unlicensed bands and alleviate the inefficient spectrum utilization of licensed bands. To ensure that the operation of licensed users will not be adversely affected and that the licensed bands can be efficiently utilized by unlicensed users, this paper proposes a cognitive radio MAC protocol called SMC-CR-MAC. When any primary user is detected, the proposed SMC-CR-MAC protocol applies Contiguous Channel Switching and Sender-Receiver Channel Swap rules to cope with the rendezvous, packet collision, and channel congestion problems. Simulation results show that the proposed SMC-CR-MAC protocol can significantly improve the network performance in terms of utilization of licensed bands, standard deviation of traffic load on each channel, and probability of successful rendezvous.
關鍵字 Cognitive radio network;Multichannel MAC protocol;CRNs
語言 en_US
ISSN 1022-0038
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度
國別 USA
公開徵稿
出版型式 ,紙本
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