Validation of an Improved Location-Based Handover Algorithm Using GSM Measurement Data
IEEE Transactions on Mobile Computing
ICNS '07 Proceedings of the Third International Conference on Networking and Services
Autonomic-Oriented Architecture for an Intelligent Handover Management Scheme
CNSR '08 Proceedings of the Communication Networks and Services Research Conference
A Location-Based Vertical Handover Algorithm for Limitation of the Ping-Pong Effect
WIMOB '08 Proceedings of the 2008 IEEE International Conference on Wireless & Mobile Computing, Networking & Communication
A Combined Vertical Handover Decision Metric for QoS Enhancement in Next Generation Networks
WIMOB '09 Proceedings of the 2009 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications
An autonomic piloting plane for the handover decision optimization
NTMS'09 Proceedings of the 3rd international conference on New technologies, mobility and security
Improving handoff performance by using distance-based dynamic hysteresis value
APNOMS'06 Proceedings of the 9th Asia-Pacific international conference on Network Operations and Management: management of Convergence Networks and Services
A survey of mobility management in next-generation all-IP-based wireless systems
IEEE Wireless Communications
IEEE Communications Magazine
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In this paper a new technique called The HandOver Decision STAbility Technique (HODSTAT) is proposed for horizontal handover in Wireless Local Area Networks based on IEEE 802.11 standard. HODSTAT addresses the decision instability which impacts negatively on both user perception and network performances. HODSTAT is based on a hysteresis margin analysis that, combined with a utility-based function, evaluates the need for the handover and determines if the handover is needed or can be avoided. Indeed, if a Mobile Terminal (MT) only transiently hands over to a better network, the gain from using this new network may be diminished by the handover overhead and short usage duration. The approach that we adopt throughout this article aims at reducing with the minimum handover occurrence that leads to network connectivity cut which causes additional delay and packet loss. To this end, MT rather performs a handover only if the connectivity of the current network is threatened or if the performance of a neighboring network is really better comparing to the current one with a hysteresis margin. This hysteresis should make a tradeoff between handover occurrence and the necessity to change the current network of attachment. Through our extensive simulation results, we show that our proposed algorithm outperforms other decision stability approaches for handover decision algorithm.