000056111 001__ 56111 000056111 005__ 20210121114520.0 000056111 0248_ $$2sideral$$a95158 000056111 037__ $$aART-2015-95158 000056111 041__ $$aeng 000056111 100__ $$aPérez, S. 000056111 245__ $$aAnalysis of Impact in the Wi-Fi QoS of the EDCA Parameters 000056111 260__ $$c2015 000056111 5060_ $$aAccess copy available to the general public$$fUnrestricted 000056111 5203_ $$aWith 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 000056111 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/ 000056111 590__ $$a0.475$$b2015 000056111 591__ $$aCOMPUTER SCIENCE, SOFTWARE ENGINEERING$$b93 / 106 = 0.877$$c2015$$dQ4$$eT3 000056111 591__ $$aCOMPUTER SCIENCE, HARDWARE & ARCHITECTURE$$b43 / 51 = 0.843$$c2015$$dQ4$$eT3 000056111 592__ $$a0.334$$b2015 000056111 593__ $$aComputational Theory and Mathematics$$c2015$$dQ3 000056111 593__ $$aComputer Science Applications$$c2015$$dQ3 000056111 593__ $$aTheoretical Computer Science$$c2015$$dQ3 000056111 593__ $$aSoftware$$c2015$$dQ3 000056111 593__ $$aHardware and Architecture$$c2015$$dQ3 000056111 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000056111 700__ $$aFacchini, H. 000056111 700__ $$aDantiacq, A. 000056111 700__ $$aCangemi, G. 000056111 700__ $$0(orcid)0000-0003-4810-0062$$aCampos, J.$$uUniversidad de Zaragoza 000056111 7102_ $$15007$$2570$$aUniversidad de Zaragoza$$bDpto. Informát.Ingenie.Sistms.$$cÁrea Lenguajes y Sistemas Inf. 000056111 773__ $$g15, 1 (2015), 8 - 14$$pJ. Comput. Sci. Technol.$$tJournal of Computer Science and Technology$$x1000-9000 000056111 85641 $$uhttp://sedici.unlp.edu.ar/handle/10915/44719$$zTexto completo de la revista 000056111 8564_ $$s1458361$$uhttps://zaguan.unizar.es/record/56111/files/texto_completo.pdf$$yVersión publicada 000056111 8564_ $$s129512$$uhttps://zaguan.unizar.es/record/56111/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000056111 909CO $$ooai:zaguan.unizar.es:56111$$particulos$$pdriver 000056111 951__ $$a2021-01-21-11:02:04 000056111 980__ $$aARTICLE