Conference
Joint packet retransmission and spectrum sensing for cognitive radio networks
| العنوان: | Joint packet retransmission and spectrum sensing for cognitive radio networks |
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| المؤلفون: | Foukalas, F., Karetsos, G. T. |
| المصدر: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84933576366&partnerID=40&md5=ce7dd0fa975e0d4070c6dc00e70f3741. |
| سنة النشر: | 2014 |
| المجموعة: | University of Thessaly Institutional Repository / Ιδρυματικό Αποθετήριο Πανεπιστημίου Θεσσαλίας |
| مصطلحات موضوعية: | cognitive radio networks, Convex hull, hybrid automatic repeat request, spectrum sensing, Codes (symbols), Communication channels (information theory), Computational geometry, Data communication systems, Error correction, Network layers, Radio, Radio systems, Signal encoding, Adaptive modulation scheme, Average spectral efficiency, Cognitive radio network, Cognitive radio networks (CRNs), Probability of detection, Cognitive radio |
| الوصف: | We model and simulate a joint design of packet retransmission through a hybrid automatic repeat request (HARQ) protocol at the data link layer and spectrum sensing (SpSe) at the physical layer for cognitive radio networks (CRNs). We assume an adaptive modulation scheme at the physical layer that is incorporated with the SpSe and we focus on the maximization of the average spectral efficiency that is affected by both the number of retransmissions of the HARQ protocol and the probability of detection of the SpSe mechanism. The optimal results demonstrate the tradeoff between these two key parameters. We depict the optimal operational points, where the performance is maximized, using convex hull methodology. © 2014 FESB, University of Split. |
| نوع الوثيقة: | conference object |
| اللغة: | unknown |
| ردمك: | 978-953-290-052-1 953-290-052-7 |
| Relation: | http://hdl.handle.net/11615/27524 |
| DOI: | 10.1109/SOFTCOM.2014.7039102 |
| الاتاحة: | http://hdl.handle.net/11615/27524 https://doi.org/10.1109/SOFTCOM.2014.7039102 |
| رقم الانضمام: | edsbas.559F71FE |
| قاعدة البيانات: | BASE |
| ردمك: | 9789532900521 9532900527 |
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| DOI: | 10.1109/SOFTCOM.2014.7039102 |