Power Control in Cognitive Radio Systems Based on Spectrum Sensing Side Information

Cognitive radio has been recently proposed as a promising technology to improve the spectrum utilization efficiency by intelligently sensing and accessing some vacant bands of licensed users. In this paper, we consider the coexistence between a cognitive radio and a licensed user in order to enhance...

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Bibliographic Details
Published in2007 IEEE International Conference on Communications pp. 5161 - 5165
Main Authors Hamdi, K., Wei Zhang, Ben Letaief, K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2007
Subjects
Cognitive radio
Communications Society
FCC
Interference
OFDM
Power control
Power engineering and energy
Power engineering computing
Quality of service
Receivers
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Summary:Cognitive radio has been recently proposed as a promising technology to improve the spectrum utilization efficiency by intelligently sensing and accessing some vacant bands of licensed users. In this paper, we consider the coexistence between a cognitive radio and a licensed user in order to enhance the spectrum efficiency. We develop an approach to allow the cognitive radio to operate in the presence of the licensed user. In order to minimize the interference to the licensed user, the transmit power of the cognitive radio is controlled by using the side information of spectrum sensing. Numerical results will show that the quality of service for the licensed user can be guaranteed in the presence of the cognitive radio by the proposed approach.
ISBN:9781424403530
1424403537
ISSN:1550-3607
DOI:10.1109/ICC.2007.853