Abstract
TCP is a widely used protocol in modern communication networks. However, the performances of existing TCP congestion control algorithms degrade severely in wireless networks due to wireless-related packet losses and packet reorderings, in addition to congestion. In this paper, a novel TCP algorithm, named TCP-ACC, is proposed. The algorithm detects the level of packet reordering as well as packet losses by combining a packet reordering measurement and congestion control so as to avoid unnecessary slowing down of the data transmission rate while preventing congestion and maintaining good fairness. Theoretical analysis and experiment results show that the algorithm achieves significant throughput improvement in wireless networks as compared with other state-of-the-art algorithms.