The performance of multiple tcp flows with vertical handoff

The performance of an individual TCP flow with a vertical handoff has been studied in several papers. However, the effect of a vertical handoff on multiple TCP flows has been little studied. In this paper we study the behaviour of multiple competing TCP flows with a vertical handoff. As a part of this study we evaluate the cross-layer assisted TCP enhancements for a vertical handoff that we had earlier proposed and analyzed for a single TCP flow. We show that our algorithms can be adapted for multiple TCP flows with minor modifications and that they are effective in improving multiple flow-TCP performance in the presence of a vertical handoff.

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