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摘要:
IEEE 802.22 is the first worldwide standard for Cognitive Networks (CNs) that exploits unused spectrum of the television broadcast service. An IEEE 802.22 network is also called Wireless Regional Area Network (WRAN). An open issue in cognitive 802.22 networks is represented by the resource distribution among WRANs. In this paper a protocol for radio resource management for CNs in a multichannel environment is presented and analysed. In particular, the contribution of this work is a resource sharing method to schedule the WRAN access to the available channels in a community made by two o more coexisting WRANs. The method adapts to the continuous changes of the spectrum availability due to necessity of vacating a channel in case of the incumbent primary users. Moreover, the introduced allocation scheme allows to divide the available band in a proportional way to the cognitive user spectrum demands, taking into account the issue of spatial diversity, i.e. the case where the channel coverage area is not uniform. The effectiveness of the proposed multichannel scheme is proved through simulations. The results compared favorably with other methods already known in literature and show that the proposed algorithm optimize the spectral efficiency, keeping high fairness as demonstrated computing the Jain’s index.
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篇名 Inter-Network Resource Sharing in IEEE 802.22 Networks
来源期刊 通讯与网络(英文) 学科 医学
关键词 COGNITIVE RADIO RESOURCE SHARING Protocol IEEE 802.22
年,卷(期) 2012,(2) 所属期刊栏目
研究方向 页码范围 111-121
页数 11页 分类号 R73
字数 语种
DOI
五维指标
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COGNITIVE
RADIO
RESOURCE
SHARING
Protocol
IEEE
802.22
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引文网络交叉学科
相关学者/机构
期刊影响力
通讯与网络(英文)
季刊
1949-2421
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
427
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