Time-Adaptive Vertical Handoff Triggering Methods for Heterogeneous Systems
APPT '09 Proceedings of the 8th International Symposium on Advanced Parallel Processing Technologies
A cooperative strategy for transmitting data traffic in hotspot cellular mobile communications
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
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In mobile cellular systems the handover is a very important process to maintain the desired Quality of Service (QoS). Many handover algorithms are proposed in the literature. However, to make a better handover and keep the QoS in wireless networks is very difficult. In this paper, by using random walk model and fuzzy theory we propose a new handover system. The proposed system uses 3 parameters for handoff decision: signal strength from the present Base Station (BS), signal strength from the neighbor BS, and the distance between Mobile Station (MS) and BS. The performance evaluation via simulations shows that proposed system can avoid ping-pong effect and has a good handover decision.