Vertical handover based on the prediction of mobility of mobile node

Mobile IPTV is one of the hot applications capitalizing recently advanced wireless communication technologies. This paper proposes a new vertical handover scheme based on the prediction of mobility of mobile node. In contrast with the existing schemes, the proposed approach considers the movement velocity and direction of the MN, and Received Signal Strength (RSS) for accurate prediction of the MN's movement toward a specific access point. Computer simulation reveals that the proposed scheme significantly outperforms the existing scheme in terms of handover success rate and messaging overhead, especially when the velocity of MN is relatively high and the number of APs is large.