56111 20210121114520.0 sideral 95158 ART-2015-95158 eng Pérez, S. Analysis of Impact in the Wi-Fi QoS of the EDCA Parameters 2015 Access copy available to the general public Unrestricted With the continuing development of the wireless technologies (Wi-Fi, 3G, 4G, WiMax and Bluethooth), the study of wireless multimedia transmissions has gained lately more attention. For example, the expectations of the company leaders on the growth of Wi-Fi video traffic has updated the lines of research on the standard IEEE 802.11e introduced to provide QoS (Quality of Service) to WLAN (Wireless LAN ) networks. In this paper we updated with greater accuracy, using other resources and the experience gained since the emergence of the standard, the work carried out previously on the quantitative impact of each EDCA (Enhanced Distributed Channel Access) parameter on the overall performance of the mechanisms MAC. A quantitative analysis of the optimizations that can be achieved has been performed by simulation. We use a node model EDCA 802.11e with the tool Möbius of the University of Illinois, which supports an extension of SPN (Stochastic Petri Networks), known as HSAN (Hierarchical Stochastic Activity Networks), what favors the contrast with other tools or mathematical resources. We use a realistic scenario formed by Wi-Fi stations with the capacity to transmit voice, video and best effort traffic. The results show that the default setting of EDCA parameters is not optimal, and that with an appropriate selection, very significant improvements can be obtained. Keywords: QoS, WLAN, EDCA 802.11e, MAC Parameters, Analysis of traffic info:eu-repo/semantics/openAccess by-nc http://creativecommons.org/licenses/by-nc/3.0/es/ 0.475 2015 COMPUTER SCIENCE, SOFTWARE ENGINEERING 93 / 106 = 0.877 2015 Q4 T3 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE 43 / 51 = 0.843 2015 Q4 T3 0.334 2015 Computational Theory and Mathematics 2015 Q3 Computer Science Applications 2015 Q3 Theoretical Computer Science 2015 Q3 Software 2015 Q3 Hardware and Architecture 2015 Q3 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Facchini, H. Dantiacq, A. Cangemi, G. (orcid)0000-0003-4810-0062 Campos, J. Universidad de Zaragoza 5007 570 Universidad de Zaragoza Dpto. Informát.Ingenie.Sistms. Área Lenguajes y Sistemas Inf. 15, 1 (2015), 8 - 14 J. Comput. Sci. Technol. Journal of Computer Science and Technology 1000-9000 http://sedici.unlp.edu.ar/handle/10915/44719 Texto completo de la revista 1458361 http://zaguan.unizar.es/record/56111/files/texto_completo.pdf Versión publicada 129512 http://zaguan.unizar.es/record/56111/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:56111 articulos driver 2021-01-21-11:02:04 ARTICLE