Abstract
We study the performance of TFRC-based traffic running across a 3G network. The goal is to evaluate the impact of three different queue management schemes on the end-to-end performance provided by TFRC. We show that drop-on-full queuing is absolutely inappropriate for TFRC traffic running over 3G links since it leads to burst packet drops and oscillatory behaviour in TFRC. Although, this is mostly avoided with RED (Random Early Discard) queuing, we find large initial probing phases of TFRC when using RED. With a simpler active queue management scheme we propose, PDPC, this probing phase is significantly reduced.
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