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Minimizing the impact of the handover for mobile users in WLAN: A study on performance optimization
Spain.
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013). Karlstad University, Faculty of Arts and Social Sciences (starting 2013), Centre for HumanIT (from 2013). (DISCO)ORCID iD: 0000-0002-9446-8143
2016 (English)In: Computer Networks, ISSN 1389-1286, E-ISSN 1872-7069, Vol. 107, p. 292-303Article in journal (Refereed) Published
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Text
Abstract [en]

IEEE 802.11 based Wireless LANs are an important piece in today’s communication infrastructure in order to provide high speed wireless Internet access to static or quasi mobile users. For large WLAN deployments (i.e., Campus or enterprise WLAN), it is important to understand the impact of user mobility and handovers on the system performance. In this article, we have developed a performance model for a set of networked 802.11 based WLAN Access Points, which is based on a Mixed Integer Linear Program (MILP). The objective function tries simultaneously to maximize the total system rate while at the same time minimizing the number of handovers for a configurable handover signaling rate. Because of the conflicting nature of the two objective functions, such multi-objective optimization is difficult to explore. A detailed evaluation of the model using several scenarios involving both different numbers of static and mobile users shows that our formulation allows trading off those two objectives in a robust way. 

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 107, p. 292-303
Keywords [en]
Broadband networks; Integer programming; Standards, Communication infrastructure; Handover; High speed wireless; IEEE 802.11s; MILP; Minimizing the number of; Mixed integer linear program; Performance optimizations, Multiobjective optimization
National Category
Computer Systems
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-42354DOI: 10.1016/j.comnet.2016.03.014ISI: 000385326600012Scopus ID: 2-s2.0-84962875286OAI: oai:DiVA.org:kau-42354DiVA, id: diva2:933863
Available from: 2016-06-07 Created: 2016-05-23 Last updated: 2019-05-27Bibliographically approved

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Kassler, Andreas

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