A TCP Handover Scheme between MSS and UMTS
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As the rapidly developing of heterogeneous networks, handover of non-real time services based on TCP is more important for the mobile communications. During the vertical handover procedure between Mobile Satellite System (MSS) and UMTS, packet disordering, data throughput and bandwidth utilization are the most important factors should be considered. In this paper, we design a TCP handover scheme and use the method of adjusting dupThresh to avoid the decreasing of cwnd when handover. The ns2 simulation results demonstrate that this scheme could achieve the seamless TCP handover between MSS and UMTS.