Networking

Dynamic TCP Proxies: Coping With Disadvantaged Hosts in MANETs

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Executive Summary

Applications in mobile ad-hoc networks can suffer from poor link quality and degraded network services. In particular, standard TCP over low-quality, long routing paths, can have disproportionally low throughput as the result of a double penalty: long end-to-end round-trip time - due to long path length, and frequent congestion window back off due to packet losses that could not be masked by the link layer retransmissions. To address this problem, the authors leverage a well-known concept of dynamic TCP proxies but propose to dynamically install these proxies along a routing path based on the quality of the links comprising the path.

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