Cognitive Radio MAC Protocol for Hidden Incumbent System Detection 


Vol. 31,  No. 12, pp. 1058-1067, Dec.  2006


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  Abstract

In this paper, we propose a inband/outband broadcast method for hidden incumbent system detection of medium access control layer for wireless regional area network systems using cognitive radio technology. Through some extra channels that are not currently used, a short message is broadcasted. The message allows CPE detecting an appearance of incumbent system to send sensing report to CR BS. For the hidden incumbent system report message, the BS needs a process or method for allocation of upstream resource to CPEs. And transmitting multiple out-band signals has a possibility to collide with out-band signals of other co-located WRAN BSs. To avoid out-band signal collision, BSs randomly select it out-band signal broadcasting time within the pre-defined explicit out-band signaling period. And fractional Bandwidth Usage allows WRAN BSs to efficiently use bandwidth.

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  Cite this article

[IEEE Style]

H. Kim, K. Jo, T. Hyon, S. Yoo, "Cognitive Radio MAC Protocol for Hidden Incumbent System Detection," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 12, pp. 1058-1067, 2006. DOI: .

[ACM Style]

Hyun-Ju Kim, Kyoung-Jin Jo, Tae-In Hyon, and Sang-Jo Yoo. 2006. Cognitive Radio MAC Protocol for Hidden Incumbent System Detection. The Journal of Korean Institute of Communications and Information Sciences, 31, 12, (2006), 1058-1067. DOI: .

[KICS Style]

Hyun-Ju Kim, Kyoung-Jin Jo, Tae-In Hyon, Sang-Jo Yoo, "Cognitive Radio MAC Protocol for Hidden Incumbent System Detection," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 12, pp. 1058-1067, 12. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880