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Markov Chain Analysis of Opportunistic Cognitive Radio with Imperfect Sensing  

Ahn, Hong-Young (홍익대학교 컴퓨터정보통신공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.10, no.6, 2010 , pp. 1-8 More about this Journal
Abstract
Wireless multimedia service through the access to mobile telephone network or data network is a vital part of contemporary life, and the demand for frequency spectrum for new services is expected to explode as the ubiquitous computing proliferate. Cognitive radio is a technology, which automatically recognizes and searches for temporally and spatially unused frequency spectrum, then actively determines the communication method, bandwidth, etc. according to the environment, thus utilizing the limited spectrum resources efficiently. In this paper, we investigate the effects of imperfect sensing, misdetection and false alarm, on the primary and secondary users' spectrum usage through the analysis of continuous time Markov Chain. We analyzed the effects of the parameters such as sensing error, offered load on the system performance.
Keywords
기회적 인지전파망;연속시간 마르코프 체인;센싱 오류;제공 부하;시스템 성능;
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  • Reference
1 Y. Xing, R. Chandramouli, S. Mangold and S. Shankar N., "Dynamic Spectrum Access in Open Spectrum Wireless Networks" IEEE Journal on Selected Areas in Communications, vol. 24, no. 3, pp. 626-637, March 2006.   DOI
2 FCC, "Facilitating opportunities for flexible, efficient and reliable spectrum use employing cognitive radio technologies: notice of proposed rule making and order," FCC Document ET Docket No. 03-108, Dec. 2003.
3 T. Clancy, "Achievable capacity under the interference temperature model," in Proc. IEEE INFOCOM 2007, pp. 794-802, Anchorage, AK, May 2007.
4 Q. Zhao and B. M. Sadler, "A survey of dynamic spectrum access," IEEE Signal. Process. Mag., vol. 24, no. 3, pp. 79-89, May 2007.   DOI
5 I. Akyildiz, W. Lee, M. Vuran, and S. Mohanty, "NeXt generation/dynamic spectrum access/cognitive radio wireless networks: Asurvey," Comput. Netw., vol. 50, no. 13, pp. 2127-2159, Sep. 2006.   DOI   ScienceOn