Conference
Relay subset selection in cognitive networks with imperfect CSI and individual power constraints
| العنوان: | Relay subset selection in cognitive networks with imperfect CSI and individual power constraints |
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| المؤلفون: | Nájar Martón, Montserrat, Blanco, Luis |
| المساهمون: | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions, Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE) |
| سنة النشر: | 2015 |
| المجموعة: | Universitat Politècnica de Catalunya (UPC): Tesis Doctorals en Xarxa (TDX) / Theses and Dissertations Online |
| مصطلحات موضوعية: | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica, Cognitive radio networks, Multiple relay selection, Relay networks (telecommunication), Cognitive radio, Combinatorial mathematics, Communication complexity, Convex programming, Radiofrequency interference, Relaxation theory |
| الوصف: | This paper considers the relay subset selection problem in an underlay cognitive network in which two secondary users communicate assisted by a set of N potential relays. More specifically, this paper deals with the joint problem of choosing the best subset of L secondary relays and their corresponding weights which maximize the Signal-to-Interference-plus-Noise ratio (SINR) at the secondary user receiver, subject to per-relay power constraints and interference power constraints at the primary user. This problem is a combinatorial problem with a high computational burden. Nevertheless, we propose a sub-optimal technique, based on a convex relaxation of the problem, which achieves a near-optimal performance with a reduced complexity. Contrary to other approaches in the literature, the secondary relays are not limited to cooperate at full power. ; Peer Reviewed ; Postprint (author's final draft) |
| نوع الوثيقة: | conference object |
| وصف الملف: | 5 p. |
| اللغة: | English |
| ردمك: | 978-0-9928626-4-0 0-9928626-4-7 |
| Relation: | http://www.eurasip.org/Proceedings/Eusipco/Eusipco2015/papers/1570104691.pdf; info:eu-repo/grantAgreement/EC/FP7/318306/EU/Network of Excellence in Wireless COMmunications #/NEWCOM#; Najar, M., Blanco, L. Relay subset selection in cognitive networks with imperfect CSI and individual power constraints. A: European Signal Processing Conference. "23rd European Signal Processing Conference (EUSIPCO). 31 August - 4 September 2015 in Nice, France". Niza: Institute of Electrical and Electronics Engineers (IEEE), 2015, p. 1456-1460.; http://hdl.handle.net/2117/103256 |
| DOI: | 10.1109/EUSIPCO.2015.7362625 |
| الاتاحة: | http://hdl.handle.net/2117/103256 https://doi.org/10.1109/EUSIPCO.2015.7362625 |
| Rights: | Open Access |
| رقم الانضمام: | edsbas.A13FAB7F |
| قاعدة البيانات: | BASE |
| ردمك: | 9780992862640 0992862647 |
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| DOI: | 10.1109/EUSIPCO.2015.7362625 |