Error control scheme for TCP packet radio systems

To meet a demand of convenient mobile computing, we studied an error control scheme mounted on a conventional radio packet system. Two error control schemes for the transmission control protocol (TCP) connection on a wireless network are proposed that can minimize the degradation in the radio link throughput due to the TCP retransmission. One scheme is based on the discard of the TCP retransmission packets, and the other is based on the suppression of transmission delay fluctuation on the radio link. These schemes can be mounted without changing the existing TCP scheme. Simulation results show that the degradation in throughput is reduced by 11% by using either scheme when the frame error rate is 10^-2 under the indoor-B condition and pedestrian condition that are defined as the standard simulation condition for IMT-2000