Home // International Journal On Advances in Networks and Services, volume 7, numbers 3 and 4, 2014 // View article

A Policy for Group Handover Attempts over Heterogeneous Networks

Authors:
Nivia Cruz Quental
Paulo André da Silva Gonçalves

Keywords: GVHO; handover; policy of attempts

Abstract:
The proliferation of heterogeneous wireless networks and devices with multiple wireless link-layer technologies have called attention to the development of efficient vertical handover policies. Research on providing efficient vertical handover includes either the proposal of novel solutions or adaptations into existing horizontal handover schemes. In this work, we propose a policy for Group Vertical Handover (GVHO) attempts. We apply such a policy to an existing GVHO scheme, which handles vertical group handover based on a threshold that limits handover blocking probability. Performance is evaluated through simulation under several scenarios. To provide more realistic situations, we consider channel holding time in our studies. In addition, we study the fraction of blocked nodes and we vary threshold values for blocking probability. We compare our solution to that of the studied GVHO scheme. Results show that our solution reduces the handover latency and the fraction of blocked nodes while maintaining the handover blocking probability under a predefined threshold. In particular, latency is reduced from 11% to 51.5% in some of the scenarios studied.

Pages: 183 to 193

Copyright: Copyright (c) to authors, 2014. Used with permission.

Publication date: December 30, 2014

Published in: journal

ISSN: 1942-2644