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Seamless Vertical Handover in WiFi and WiMAX Networks using RSS and Motion Detection: An Investigation

Nyamapfene, A; Naeem, B; (2011) Seamless Vertical Handover in WiFi and WiMAX Networks using RSS and Motion Detection: An Investigation. Pacific Journal of Science and Technology , 12 (1) pp. 298-304. Green open access

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Abstract

In this paper, we propose a decision making algorithm for seamless vertical handover between WiFi hotspots and an overlay WiMAX network. The inputs to the algorithm are the WiFi received signal strength (RSS) and estimated end-to-end TCP handover latency. Simulation of the algorithm using Matlab® reveals that the distance from the WiFi reception boundary at which handover must be initiated if it is to be seamless increases with both end-to-end TCP/IP handover latency and the speed of the mobile terminal towards or away from the WiFi access point. We conclude that RSS-based seamless handovers need to be augmented with network layer information if they are to be optimal.

Type: Article
Title: Seamless Vertical Handover in WiFi and WiMAX Networks using RSS and Motion Detection: An Investigation
Open access status: An open access version is available from UCL Discovery
Publisher version: http://akamaiuniversity.us/PJST12_1_298.pdf
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher's terms and conditions.
Keywords: WiFi, WiMAX, horizontal handover, vertical handover, seamless vertical handover, heterogeneous wireless networks, wireless overlay networks
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Engineering Science Faculty Office
URI: https://discovery.ucl.ac.uk/id/eprint/10112042
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