149012 20250124153131.0 doi 10.1109/LWC.2018.2873347 sideral 109399 ART-2018-109399 eng Ortín Gracia, Jorge (orcid)0000-0001-9052-9554 Analysis of Unslotted IEEE 802.15.4 Networks with Heterogeneous Traffic Classes 2018 We propose a modeling framework composed of a Markov chain and the related coupling equations to evaluate the performance of unslotted IEEE 802.15.4 wireless sensor networks based on CSMA/CA Medium Access Control. Different from the related literature, the proposed model is able to capture heterogeneous classes of nodes with class-specific traffic generation rate and includes a more refined calculation of the probability of finding the channel busy during the carrier sensing process. The proposed model is used to derive class-specific performance figures including the probability of a successful transmission and the average delay for a successful/unsuccessful transmission. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.546 2018 COMPUTER SCIENCE, INFORMATION SYSTEMS 33 / 154 = 0.214 2018 Q1 T1 ENGINEERING, ELECTRICAL & ELECTRONIC 66 / 265 = 0.249 2018 Q1 T1 TELECOMMUNICATIONS 24 / 88 = 0.273 2018 Q2 T1 0.923 2018 Control and Systems Engineering 2018 Q1 Physics and Astronomy (miscellaneous) 2018 Q1 Electrical and Electronic Engineering 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Cesana, Matteo Redondi, Alessandro Enrico Cesare Canales Compés, María Universidad de Zaragoza (orcid)0000-0002-8298-4300 Gállego Martínez, José Ramón Universidad de Zaragoza (orcid)0000-0002-8682-745X 5008 560 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Ingeniería Telemática 8, 2 (2018), 380-383 IEEE wirel. commun. lett. IEEE Wireless Communications Letters 2162-2337 504183 http://zaguan.unizar.es/record/149012/files/texto_completo.pdf Postprint 3357408 http://zaguan.unizar.es/record/149012/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:149012 articulos driver 2025-01-24-14:48:59 ARTICLE