Cognition Based Seamless Transmissions by Using Underlay-Overlay Switching Method in Future Wireless Communication System

Woongsup Lee; Howon Lee; Dong-Ho Cho

2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications

Research Article

Cognition Based Seamless Transmissions by Using Underlay-Overlay Switching Method in Future Wireless Communication System

Cite: BibTeX Plain Text

@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

Woongsup Lee¹^,*, Howon Lee¹^,*, Dong-Ho Cho¹^,*

1: Department of Electrical Engineering and Computer Science Korea Advanced Institute of Science and Technology (KAIST) 373-1, Guseong-dong, Yuseong-gu, Daejeon, Korea

*Contact email: wslee@comis.kaist.ac.kr, hwlee@comis.kaist.ac.kr, dhcho@ee.kaist.ac.kr

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.

Keywords: Analytical models Bandwidth Cognition Cognitive radio Communication switching Frequency Performance analysis Resource management Telephony Wireless communication

Published: 2008-06-24
Publisher: IEEE
Modified: 2011-08-01

: http://dx.doi.org/10.1109/CROWNCOM.2007.4549827