Precoder Design and Power Allocation for MIMO Cognitive Radio Two-Way Relaying Systems
| dc.contributor.author | Sboui, Lokman | * |
| dc.contributor.author | Ghazzai, Hakim | * |
| dc.contributor.author | Rezki, Zouheir | * |
| dc.contributor.author | Alouini, Mohamed-Slim | * |
| dc.date.accessioned | 2016-10-12T09:15:27Z | |
| dc.date.available | 2016-10-12T09:15:27Z | |
| dc.date.issued | 2016-08-11 | en |
| dc.identifier.citation | Sboui L, Ghazzai H, Rezki Z, Alouini M-S (2016) Precoder Design and Power Allocation for MIMO Cognitive Radio Two-Way Relaying Systems. IEEE Transactions on Communications: 1–1. Available: http://dx.doi.org/10.1109/TCOMM.2016.2599520. | en |
| dc.identifier.issn | 0090-6778 | en |
| dc.identifier.doi | 10.1109/TCOMM.2016.2599520 | en |
| dc.identifier.uri | http://hdl.handle.net/10754/620946 | |
| dc.description.abstract | In this paper, we study a multiple-antenna two-way relaying (TWR) cognitive radio (CR) system. A space alignment (SA) technique is adopted by the secondary users (SUs) to avoid interference with the primary users (PUs). We derive the optimal power allocation that maximizes the TWR achievable SU sum- rate while respecting the total power budget and the relay power constraints. We also analyze the case in which the relay is able to optimize its gain matrix structure to enhance the SU sum-rate. In the numerical results, we quantify the sum-rate gain of using the SA in the TWR CR and we show that the SU sum-rate is very limited when the relay power is low or the PU power and its resulting interference are high. In addition, we optimize the relay gain using an iterative algorithm and compare between different relay matrix structures. | en |
| dc.description.sponsorship | This work was supported by the Qatar National Research Fund (a member of Qatar Foundation) under NPRP Grant NPRP 6-001-2-001 | en |
| dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | en |
| dc.relation.url | http://ieeexplore.ieee.org/document/7542139/ | en |
| dc.rights | (c) 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works. | en |
| dc.title | Precoder Design and Power Allocation for MIMO Cognitive Radio Two-Way Relaying Systems | en |
| dc.type | Article | en |
| dc.contributor.department | Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division | * |
| dc.contributor.department | Electrical Engineering Program | * |
| dc.contributor.department | Physical Sciences and Engineering (PSE) Division | * |
| dc.contributor.department | Computer, Electrical and Mathematical Science and Engineering Division (CEMSE) | * |
| dc.identifier.journal | IEEE Transactions on Communications | en |
| dc.eprint.version | Post-print | en |
| dc.contributor.institution | Qatar Mobility Innovations Center (QMIC), Qatar University , Doha, Qatar | * |
| kaust.author | Sboui, Lokman | * |
| kaust.author | Rezki, Zouheir | * |
| kaust.author | Alouini, Mohamed-Slim | * |
| refterms.dateFOA | 2018-06-13T13:03:15Z |
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