MPSSF:A Buffering ＆ Forwarding Handover Scheme Reducing Out-of-Sequence Packets

In order to minimize packets loss during handover, fast handover technique as well as packet buffering ＆ forwarding techniques are adopted by micro mobility protocols in All IP wireless mobile network There are mainly two kinds of buffering ＆ forwarding schemes, that is, multiple stream and single stream The multiple stream scheme is simple but can lead to the creation of out of sequence packets As an alternation without out of sequence packets, the single stream scheme consumes extra network resources A new scheme called MPSSF （multiple path single stream forwarding） is proposed in this paper It features less out of sequence over the single stream scheme and remarkable reduction of extra consuming of network resources Simulation results show that fast retransmission triggered by out of sequence packets is avoided in MPSSF, and thus the TCP performance is better than that of the multiple stream scheme or single stream scheme