Full-Duplex opportunistic relay selection in future spectrum-sharing networks
Type
Conference PaperKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
Date
2015-06Permanent link to this record
http://hdl.handle.net/10754/577375
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We propose and analyze the performance of full-duplex relay selection in primary/secondary spectrum-sharing networks. Contrary to half-duplex relaying, full-duplex relaying (FDR) enables simultaneous listening/forwarding at the secondary relay, thereby allowing for a higher spectral efficiency. However, since the source and relay simultaneously transmit in FDR, their superimposed signal at the primary receiver should now satisfy the existing interference constraint which can considerably limit the secondary network throughput. In this regard, relay selection can offer an adequate solution to boost the secondary throughput while satisfying the imposed interference limit. We first analyze the performance of opportunistic relay selection among a cluster of full-duplex decode-and-forward relays with self-interference by deriving the exact cumulative distribution function of its end-to-end signal-to-noise ratio. Second, we evaluate the end-to-end performance of relay selection with interference constraints due to the presence of a primary receiver. Finally, the presented exact theoretical findings are verified by numerical simulations.Citation
Khafagy, M. G., Alouini, M.-S., & Aissa, S. (2015). Full-Duplex opportunistic relay selection in future spectrum-sharing networks. 2015 IEEE International Conference on Communication Workshop (ICCW). doi:10.1109/iccw.2015.7247340Conference/Event name
2015 IEEE International Conference on Communication Workshop (ICCW)ae974a485f413a2113503eed53cd6c53
10.1109/ICCW.2015.7247340