Performance improvement of TCP using TCP-DOOR-TS algorithm in mobile ad hoc networks

Mobile ad hoc networks (MANETs) have provided new challenges, which are the result of the unique characteristics of the wireless medium, the dynamic nature of the network topology and the route failure due to frequent link breakages, which affects the end-to-end transmission of data. TCP performs poorly in this environment. In this paper, we propose a new approach to improve TCP´s performance by detecting and responding to out-of-order (OOO) packet delivery and packet loss events, which are the results of using multi-path route to transport packets. The proposed approach is called TCP Detection of Out of Order and Response with Time Stamp (TCP-DOOR-TS). The algorithm has improved the performance of TCP. The simulation result has shown that, TCP-DOOR-TS algorithm has a higher throughput and goodput than TCP-SACK. For two different simulation scenarios, a throughput of 13% and 7.45% and a goodput of 12.5% and 7.45% improvements respectively have been achieved.