Improving Performance of Wireless TCP for Encrypted Networks

This paper introduces the reason of TCP packet losses and performance degradation in wire and wireless networks.Pointing out methods to improve TCP performance over wireless networks are TCP-aware in middle node so it is unfit for encrypted data stream.This paper proposes an alternative ″TCP-unaware″ scheme that is suitable for encrypted TCP traffic.It makes TCP source be capable of differentiating a loss due to congestionin the wired network from a loss due to bit-error in wireless networks.Simulation results show that the scheme can improve TCP transmited performance significantly both in LAN and in WAN and this method is effective.