A cross-layer based approach for improving TCP performance in Multihop Mobile Adhoc Networks (MANETs) is proposed in this paper. The proposed congestion triggering mechanism triggers congestion whenever the channel occupied ratio (COR) reaches a maximum threshold value and the received signal strength is less than a minimum threshold value. Following it, the congestion control scheme controls the data sending rate of the sender by determining available bandwidth, delay of its link and COR. Further, a fair resource allocation scheme is put forwarded.

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Proposal Cross-Layer