Enhancing Performance of TCP in Multihop Networks
O. S. Gnana Prakasi · International journal of Computer Networks & Communications · 2012
It has been observed that TCP suffers from poor bandwidth utilization and extreme unfairness in wireless environment, and the utility of TCP in the multi-hop IEEE 802.11 network has been seriously questioned.The high transmission errors and varying latency in wireless channel would have a seriously adverse effect on the performance of TCP.Thus, a novel cross-layer approach with joint congestion and contention window control scheme and a probabilistic approach for RTT measurement is proposed to improve the performance of TCP in multi-hop networks.The simulation results show that proposed design provides a more efficient solution for frequent transmission loss and enables TCP to distinguish between congestion loss and transmission errors, thus to take proper remedial actions to improve TCP performance in multi-hop network by setting optimal congestion window and updating the window only during congestion.