Enhancing Congestion Control to Address Link Failure Loss Over Mobile Ad-Hoc Network

Standard congestion control cannot detect link failure losses which occur due to mobility and power scarcity in Multi-hop Ad-Hoc NETwork (MANET). Moreover, successive executions of Back-off algorithm deficiently grow Retransmission TimeOut (RTO) exponentially for new route. The importance of detecting and responding link failure losses is to prevent sender from remaining idle unnecessarily and manage number of packet retransmission overhead. In contrast to Cross-layer approaches which require feedback information from lower layers, this paper operates purely in Transport layer. This paper explores an end-to-end threshold-based algorithm which enhances congestion control to address link failure loss in MANET.