Ali, B;
Mirza, J;
Zhang, J;
Zheng, G;
Saleem, S;
Wong, K-K;
(2019)
Full-Duplex Amplify-and-Forward Relay Selection in Cooperative Cognitive Radio Networks.
IEEE Transactions on Vehicular Technology
, 68
(6)
pp. 6142-6146.
10.1109/TVT.2019.2907468.
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Abstract
This paper investigates relay selection policies in a full-duplex (FD) based underlay cooperative cognitive radio network. We consider a scenario consisting of multiple pairs of primary users (PUs) with access to the spectrum, and multiple pairs of secondary users (SUs) with no dedicated spectrum access. Each pair (PU or SU) comprises of a unique set of transmitter and receiver. The secondary transmitter (ST) supports the FD transmission with the simultaneous transmission of the information to its own receiver and reception of the designated PU signal for relaying. Firstly, we formulate an optimization problem to maximize the PU rate by optimizing the transmission power at the relay (i.e., ST), while keeping the SU rate fixed. Secondly, we propose two low-complexity relay selection schemes based on the sum rate maximization, namely, centralized successive and distributed prioritized matching schemes. Numerical results show that the proposed schemes perform close to exhaustive selection schemes.
| Type: | Article |
|---|---|
| Title: | Full-Duplex Amplify-and-Forward Relay Selection in Cooperative Cognitive Radio Networks |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TVT.2019.2907468 |
| Publisher version: | https://doi.org/10.1109/TVT.2019.2907468 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Cooperative communication, Cognitive radio |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10077914 |
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