Performance of SINR based handover among heterogeneuous networks in MIH environments

The great increase in user demand to roam among various wired and wireless communications networks without affecting the signal quality has attracted many researchers to investigate about the best handover decision criteria that promote seamless handover. IEEE 802.21 Media Independent Handover (MIH) standard can be considered to be the best environment for handling both horizontal and vertical handover. In this work, we propose a new decision criteria based on MIH signalling among WLAN and WiMAX networks which depend on the received Signal to Interference and Noise Ratio (SINR) instead of the traditional Received Signal Strength (RSS) criteria. In order to provide multimedia QoS inside the integrated network environment, the proposed VHD provides the knowledge of the achievable bandwidth from both networks by using the received SINR. Simulation-based outputs along with analytical results have confirmed that our proposal would offer the end user with better performance during the handover stage.

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