A RSS Based Adaptive Hand-Off Management Scheme In Heterogeneous Networks
Mobility management, integration and interworking of existing wireless systems are important factors to obtain seamless roaming and services continuity in Next Generation Wireless Systems (NGWS).So it is important to have a handoff scheme that takes into account the heterogeneity of the network. In this work we propose a handoff scheme which takes handoff decision adaptively based on the type of network it presently resides and the one it is attempting handoff with through some predefined rules. It also relies on the speed of the mobile terminal to make a decision of the handoff initiation received signal strength (RSS) threshold value. Finally simulations have been done to show the importance of taking these factors into account for handoff decisions rather than having a fixed threshold value of handoff for different scenarios.
Keywords: Received Signal Strength(RSS). Next Generation Wireless Networks (NGWS), Heterogeneous Wireless Networks, Quality of service(QoS), Wireless LAN(WLAN), HIPERLAN
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