Estimation Based Congestion Control in Wireless Ad hoc Networks

Transmission Control Protocol (TCP) and other its well-kNown implementations without attend to reason of packet loss, consider it as a sign of network congestion and run congestion control commands. This issue is source of performance degradation for TCP in Wireless Ad Hoc networks (WANETs). If we could distinguish between congestion loss and link error loss or use another strategy for changing congestion window, performance would be improved. In this paper, we are presenting a new mechanism to enhance the performance of TCP in WANETs namely TCP-WANET. In particular, we employ an estimation-based method for setting of congestion window size. TCP-WANET is based on InterACK, which is the time between two consecutive ACKs. Extensive packet level simulations, implemented by using ns-2, show that usage of such congestion control protocol can lead to improved performance comparing to the standard TCP protocol.