Abstract

In today’s high-speed communication era, when a user moves from one network to another, voice call and video streaming should not be interrupted. Different wireless network technologies such as WLAN, a cellular network, WiMAX coexist and they have different data rate and different area of coverage. Therefore, it is very challengeable to design an efficient vertical handoff scheme which will satisfy the seamless connectivity and provide Quality of Service(QoS). The aim of this paper is the different classification of handoff and survey the existing vertical Handoff decision making algorithms.

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