Research Article
Cognition Based Seamless Transmissions by Using Underlay-Overlay Switching Method in Future Wireless Communication System
@INPROCEEDINGS{10.1109/CROWNCOM.2007.4549827, author={Woongsup Lee and Howon Lee and Dong-Ho Cho}, title={Cognition Based Seamless Transmissions by Using Underlay-Overlay Switching Method in Future Wireless Communication System}, proceedings={2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2008}, month={6}, keywords={Analytical models Bandwidth Cognition Cognitive radio Communication switching Frequency Performance analysis Resource management Telephony Wireless communication}, doi={10.1109/CROWNCOM.2007.4549827} }- Woongsup Lee
Howon Lee
Dong-Ho Cho
Year: 2008
Cognition Based Seamless Transmissions by Using Underlay-Overlay Switching Method in Future Wireless Communication System
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2007.4549827
Abstract
Cognitive radio is a promising and challengeable technology for maximizing radio resource utilization in a future wireless communication system. In this paper, we describe a problem caused by primary users of a cognitive radio system and propose underlay-overlay switching and underlay-relay methods to solve the problem in the cognitive radio system. Through performance analysis and simulation results, we show that our proposed method has outstanding performance in view of outage probability compared with a conventional method.
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