A TCP congestion control algorithm for wireless Internet connections

摘要

This letter proposes a new congestion control algorithm for TCP in a wireless Internet. TCP performs poorly in such an environment because of the high frame error rate and the assumption that packet loss is always a sign of congestion. Our TCP congestion control algorithm is distributed and is based on a numerical algorithm that solves this optimization problem using a gradient-based method. Simulation results show that, according to the proposed algorithm, TCP converges to the proportional fair allocation if some precautions are taken to limit the delays experienced by packets and the corresponding acknowledgements.