Title :
Adaptive operation scheme for quiet period in IEEE 802.22 system
Author :
Hwang, Seung-Hoon ; Rim, Min-Joong
Author_Institution :
Div. of Electron. & Electr. Eng., Dongguk Univ.-Seoul, Seoul, South Korea
Abstract :
In IEEE 802.22 system, the quiet period for spectrum sensing consists of a series of consecutive energy detections followed by feature detection. In this paper, an adaptive operation scheme for quiet period in the IEEE 802.22 system is proposed and its performance is investigated, where the length of sensing interval is adaptively varied depending on the number of alarms by the energy detection. The effect of intra-frame cycle length is also investigated. Numerical results show that the proposed scheme may improve the channel utilization of cognitive radio system by 5% to 20%.
Keywords :
cognitive radio; feature extraction; next generation networks; telecommunication standards; IEEE 802.22 system; adaptive operation scheme; cognitive radio system; feature detection; quiet period; spectrum sensing; Adaptive systems; Cognitive radio; Detectors; Feature extraction; Wireless sensor networks; IEEE 802.22; WRAN; adaptive operation; quiet period; two-stage mechanism;
Conference_Titel :
ICT Convergence (ICTC), 2011 International Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4577-1267-8
DOI :
10.1109/ICTC.2011.6082642
