文章基本信息

标题：Multi-channel MAC Protocol in Cognitive Radio Networks
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作者：Sun, Yongli ; Zhou, Bin ; Wu, Zhenguo 等
期刊名称：Journal of Networks
印刷版ISSN：1796-2056
出版年度：2013
卷号：8
期号：11
页码：2478-2490
DOI：10.4304/jnw.8.11.2478-2490
语种：English
出版社：Academy Publisher
摘要：Since cognitive wireless network (CRN) has the characteristic of secondary use, it can enable the device to dynamically access available spectrum without interference to primary users (PUs), which can effectively alleviate contradiction between the lack of spectrum resources and the growing demand for wireless access. However, Medium Access Control (MAC) protocol as CRN core components, can achieve competition access of the licensed spectrum and coordination control, which will maximize spectrum utilization efficiency and network throughput. The contribution of this survey is threefold. First, we analyze the characteristics of the existed multi- channel MAC protocol in CRN; Second, according to the different ways of spectrum access in CRNs, the multi-channel MAC protocols are classified into time-slotted based MAC protocol, control channel based MAC protocol and hybrid MAC protocol, and the paper emphatically analyzed the advantages and disadvantages of these multi-channel MAC protocols; Finally, the paper explores the difficulties and the challenges of multi-channel MAC protocols design in cognitive wireless network.
关键词：Cognitive Radio Networks;Spectrum Sharing;Spectrum Sensing;Medium Access Control Protocol