89877 20200629140840.0 doi 10.1109/JSAC.2016.2624158 sideral 97892 ART-2016-97892 eng (orcid)0000-0001-9052-9554 Ortin, J. Universidad de Zaragoza Resource-on-demand schemes in 802.11 WLANs with non-zero start-up times 2016 Access copy available to the general public Unrestricted Increasing the density of access points is one of the most effective mechanisms to cope with the growing traffic demand in wireless networks. To prevent energy wastage at low loads, a resource-on-demand (RoD) scheme is required to opportunistically (de)activate access points as network traffic varies. While previous publications have analytically modeled these schemes in the past, they have assumed that resources are immediately available when activated, an assumption that leads to inaccurate results and might result in inappropriate configurations of the RoD scheme. In this paper, we analyze a general RoD scenario with N access points and non-zero start-up times. We first present an exact analytical model that accurately predicts performance but has a high computational complexity, and then derive a simplified analysis that sacrifices some accuracy in exchange for a much lower computational cost. To illustrate the practicality of this model, we present the design of a simple configuration algorithm for RoD. Simulation results confirm the validity of the analyses, and the effectiveness of the configuration algorithm. info:eu-repo/grantAgreement/ES/DGA/T98 info:eu-repo/grantAgreement/EC/H2020/644262/EU/What to do With the Wi-Fi Wild West/Wi-5 This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 644262-Wi-5 info:eu-repo/grantAgreement/ES/UZ/CUD2013-05 info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 8.085 2016 TELECOMMUNICATIONS 4 / 89 = 0.045 2016 Q1 T1 ENGINEERING, ELECTRICAL & ELECTRONIC 8 / 260 = 0.031 2016 Q1 T1 1.873 2016 Electrical and Electronic Engineering 2016 Q1 Computer Networks and Communications 2016 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Donato, C. Serrano, P. Banchs, A. 5008 560 Universidad de Zaragoza Dpto. Ingeniería Electrón.Com. Área Ingeniería Telemática 34, 12 (2016), 3221-3233 IEEE j. sel. areas commun. IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS 0733-8716 426130 http://zaguan.unizar.es/record/89877/files/texto_completo.pdf Postprint 614480 http://zaguan.unizar.es/record/89877/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:89877 articulos driver 2020-06-29-12:20:15 ARTICLE