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oai:recercat.cat:2117/871682026-02-04T03:58:39Zcom_2072_1033col_2072_452950

Energy-efficient contention-aware channel selection in cognitive radio Ad-Hoc networks Mesodiakaki, Agapi Adelantado, Ferran Alonso Zárate, Luis Gonzaga Verikoukis, Christos Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. WiComTec - Grup de recerca en Tecnologies i Comunicacions Sense Fils Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica Cognitive radio networks CSMA/CA Cognitive Radio Ad-Hoc Networks Cooperative Spectrum Sensing Green Communications Ràdio cognitiva In this paper, we propose a novel contention-aware channel selection algorithm that focuses on throughput and energy efficiency improvement in Cognitive Radio Ad-Hoc Networks (CRAHNs). Specifically, we study the operation and performance of a Secondary Network (SN) in a scenario where other non-cooperating CRAHNs are also using the primary resources. We prove that a channel categorization of the idle channels based on their contention level and the selection of the less contented ones can result in up to 70% improvement in throughput and up to 68% improvement in energy efficiency. Simulation results are presented for the performance evaluation of our proposed algorithm. Peer Reviewed Postprint (published version) 2012 Conference report Mesodiakaki, A., Adelantado, F., Alonso, L., Verikoukis, C. Energy-efficient contention-aware channel selection in cognitive radio Ad-Hoc networks. A: IEEE International Workshop on Computer-Aided Modeling Analysis and Design of Communication Links and Networks. "2012 IEEE 17th International Workshop on Computer Aided Modeling and Design of Communication Links and Networks (CAMAD)". Barcelona: 2012, p. 46-50. https://hdl.handle.net/2117/87168 10.1109/CAMAD.2012.6335376 eng Restricted access - publisher's policy 5 p. application/pdf