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Optimized access network selection in a combined WLAN/LTE environment
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Computer Science.ORCID iD: 0000-0003-0244-3561
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Computer Science.ORCID iD: 0000-0002-8681-9572
2011 (English)In: Wireless personal communications, ISSN 0929-6212, E-ISSN 1572-834X, Vol. 61, no 4, p. 739-751Article in journal (Refereed) Published
Abstract [en]

Multimode terminals equipped with multiple radio access technologies are becoming increasingly popular. At the same time, network operators and service providers seek opportunities to deliver seamless services cost effectively, leveraging a variety of radio access technologies using both licensed and unlicensed spectrum. In order to standardize the operations of such complex environments 3GPP is currently working on IP flow mobility and mobile data offload solutions. This article proposes and evaluates a new access network selection procedure in such a combined WLAN/LTE environment. The proposed solution takes not only parameters available in the mobile node and its current and candidate access networks into account, but performs an optimization on the heterogeneous wireless network level as well. An optimization model based on an approximate solution to the well-known bin packing problem is presented. Also, there is a signaling scheme for distribution handling presented. Results from simulations performed in OPNET Modeler show improvements compared to basing handover decisions on locally available information only.

Place, publisher, year, edition, pages
2011. Vol. 61, no 4, p. 739-751
National Category
Media and Communication Technology
Research subject
Mobile and Pervasive Computing
Identifiers
URN: urn:nbn:se:ltu:diva-7804DOI: 10.1007/s11277-011-0429-xLocal ID: 63900790-c49c-11df-a707-000ea68e967bOAI: oai:DiVA.org:ltu-7804DiVA, id: diva2:980694
Note
Validerad; 2011; 20100920 (karand)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-05-09Bibliographically approved

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