Using FPGA implementations for evaluation of internet retransmission-time-out predictors

The congestion control avoidance of TCP (Transport Control Protocol), the most used protocol in Internet, is based on critical RTT (Round Trip Time) forecasting process. Currently, several delay predictors are proposed in literature; but practical implementations have not been yet evaluated. In this paper, a comparison of on-line predictors is presented. We used Altera Cyclone IV GX FPGA (Field-Programmable Gate Array) for evaluation; the criteria included performance time, power, and number of logic elements. For comparison purposes, we considered the most used predictor as reference and concluded which one is more suitable for implementation in next generation devices.