An Adaptive Primary Path Switching Scheme for Seamless mSCTP Handover

In this paper, a primary path switching scheme is proposed to provide a seamless handover for dual-homed mobile terminals. This scheme is proposed as an enhancement to the mSCTP protocol. With this scheme, a mobile terminal performs primary path switching before it becomes unavailable due to its primary path drop. The improvement achieved by the scheme is that it considers the temporal velocity of the mobile terminal with relative RTT variances of all available paths when it performs the handover process in the overlapped area between two different networks. Our simulation results show that the proposed scheme achieves a better overall performance than other schemes, and anticipatory switching is more important for faster moving terminals.