Research Article
Interference Investigation for Cognitive Spectrum Sharing Networks with Reactive DF Relay Selection
@INPROCEEDINGS{10.4108/icst.chinacom.2014.256383, author={Trung Q. Duong and Tran Duy and Kyeong Kim and Vo Bao and Maged Elkashlan}, title={Interference Investigation for Cognitive Spectrum Sharing Networks with Reactive DF Relay Selection}, proceedings={9th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2015}, month={1}, keywords={cognitive radio spectrum sharing reactive df relay}, doi={10.4108/icst.chinacom.2014.256383} }- Trung Q. Duong
Tran Duy
Kyeong Kim
Vo Bao
Maged Elkashlan
Year: 2015
Interference Investigation for Cognitive Spectrum Sharing Networks with Reactive DF Relay Selection
CHINACOM
IEEE
DOI: 10.4108/icst.chinacom.2014.256383
Abstract
Cognitive radio (CR) with spectrum-sharing has been envisioned as emerging technology for the next generation of mobile and wireless networks by allowing the unlicensed customers simultaneously utilize the licensed radio frequency spectrums. However, the CR has faced some practical challenges due to its deduced system performance as compared to non spectrumsharing counterpart. In this paper, we therefore consider the potential of incorporating the cooperative communications into CR by introducing the concept of reactive multiple decode-andforward (DF) relays. In particular, we derive new results for exact and asymptotic expressions for the performance of cognitive relay networks with K-th best relay selection. Our novel results have exhibited the significance of using relay networks to enhance the system performance of CR.
