interference from other sources, fading due to mobility, or scattering due to a large number of reflecting surfaces [1]. The performance metric of TCP in a cellular environment is the average throughput, which is the same as wired networks. The average throughput in the cellular case does not only depend on network congestion, but may also be attributed to other factors, such as the bit error rate of the wireless medium, the cell handoff time, and the cell resident time [2]. TCP is typically used in wired communication systems with very small error probabilities. However, the error characteristics of wireless channels differ significantly from that of wired channels. Therefore