QoS Supported Dynamic Channel Scanning for Seamless Handovers in Wireless Networks

Sang-Jo YOO  Nada GOLMIE 

Publication
IEICE TRANSACTIONS on Communications  Vol.E92-B  No.6  pp.2267-2270
Publication Date: 2009/06/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network
Keyword: 
scanning,  QoS support,  seamless handover, 

Full Text: PDF(553.6KB)

Summary: 
Channel scanning is an important aspect of seamless handovers since it is required in order to find a target point of attachment (PoA). However, channel scanning in single radio devices may cause severe service disruptions with the current PoA so that the provided QoS will be further degraded during a handover. In this letter, we propose a dynamic channel scanning algorithm that supports QoS. Simulation results show that the proposed mechanism reduces the service disruptions and provides the desired QoS to users during the scanning period.