TCP-LoRaD: A Loss Recovery and Differentiation Algorithm for Improving TCP Performance over MANETs in Noisy Channels

Mobile Ad hoc Networks (MANETs) are becoming popular technologies because they offer flexibility in setting up anytime and anywhere, provide communication support on the go. This requires use of Transmission Control Protocol (TCP) which is not originally designed for MANET environments; therefore, it raises serious performance issues. To overcome deficiency original TCP, several modifications have been proposed reported networking literature. TCP-WELCOME (Wireless Environment, Link losses, Congestion packet loss ModEls) one better TCP variants suitable MANETs. However, has found that this protocol problems with losses network congestion as adopts control mechanism New Reno. We also does perform well noisy channel conditions wireless environments. In paper, we propose a novel recovery differentiation algorithm (called TCP-LoRaD) to above-mentioned problems. validate TCP-LoRaD through an extensive simulation setup using Riverbed Modeler (formerly OPNET). Results obtained show offers 20% higher throughput about 15% lower end-to-end delays than under medium high traffic loads.