Cross-Layer based Congestion Detection and Dynamic Proxy Acknowledgment Scheme for TCP in MANET
P.S. Sujith Kumar1, A. Ramesh Babu2

1P.S. Sujith Kumar, Research Scholar, Hindustan Institute of Technology and Science, Chennai (Tamil Nadu), India.
2Dr. A. Ramesh Babu, Professor & Head S&H, Hindustan Institute of Technology and Science, Chennai (Tamil Nadu), India.
Manuscript received on 14 December 2018 | Revised Manuscript received on 26 December 2018 | Manuscript Published on 24 January 2019 | PP: 158-165 | Volume-7 Issue-4S2 December 2018 | Retrieval Number: Es2055017519/19©BEIESP
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Abstract: In Mobile Ad Hoc Networks, the existing transmission technique does not guarantee connectivity and congestion free transmission. Also, the static proxy nodes are not suitable during the transmission and quick as well as accurate MAC layer contention detection technique is required. Hence in this paper, we propose a cross-layer based congestion detection and adaptive proxy acknowledgement scheme for TCP in MANET. In this scheme, the underlying MANET routing protocol selects the proxy nodes along the source and destination based on link availability and link-layer transmission queue length metrics parameters. The local congestion is detected by verifying missing TCP sequence. And the end to end congestion is detected based on the frame transmission efficiency. By simulation results, we show that the proposed technique guarantees connectivity and congestion free transmission.
Keywords: Cross-Layer, Congestion, MANET, Proxy.
Scope of the Article: Cross Layer Design and Optimization