Dynamic Frequency Selection Method for Medium Access Control in Cognitive Radio Networks 


Vol. 31,  No. 7, pp. 632-641, Jul.  2006


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  Abstract

Recently FCC has considered about the unlicensed device operation in licensed bands. However, this operation can give the harmful interference to the existent licensed system while unlicensed devices operate. Therefore, there should be strict requirements to protect licensed system. So in this paper we propose dynamic frequency selection method in the MAC layer, which is based on the cognitive radio technology. The proposed dynamic frequency selection method creates channel lists after sensing the licensed channels. And it helps the CR base station immediately to moves the current channels that are used by the unlicensed system to other available bands dynamically when a licensed system's signal is detected. This method can reduce interference that is caused by unlicensed devices. In addition, it can maximize channel utilization with enabling coexistence of unlicensed system and licensed system.

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  Cite this article

[IEEE Style]

K. Jo, H. Kim, K. Roh, S. Yoo, "Dynamic Frequency Selection Method for Medium Access Control in Cognitive Radio Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 7, pp. 632-641, 2006. DOI: .

[ACM Style]

Kyoung-jin Jo, Hyun-Ju Kim, Kweon-Mun Roh, and Sang-Jo Yoo. 2006. Dynamic Frequency Selection Method for Medium Access Control in Cognitive Radio Networks. The Journal of Korean Institute of Communications and Information Sciences, 31, 7, (2006), 632-641. DOI: .

[KICS Style]

Kyoung-jin Jo, Hyun-Ju Kim, Kweon-Mun Roh, Sang-Jo Yoo, "Dynamic Frequency Selection Method for Medium Access Control in Cognitive Radio Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 31, no. 7, pp. 632-641, 7. 2006.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880