2026-04-13T01:25:27Zhttps://recercat.cat/oai/request

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

00925njm 22002777a 4500 dc Mesodiakaki, Agapi author Adelantado, Ferran author Alonso Zárate, Luis Gonzaga author Verikoukis, Christos author 2012 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) 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 Energy-efficient contention-aware channel selection in cognitive radio Ad-Hoc networks