2026-04-17T01:50:31Zhttps://recercat.cat/oai/request

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 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 Restricted access - publisher's policy