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TCP has well-known problems over multi-hop wireless networks as it conflates congestion and loss, performs poorly over time-varying and lossy links, and is fragile in the presence of route changes and disconnections. In this paper contribution is a clean-slate design and implementation of a wireless transport protocol, Hop, that uses reliable per-hop block transfer as a building ding block. Hop is fast, because it eliminates man many sources of over-head as well as noisy end-to-end rate control, robust to partitions and route changes because of hop-by-hop control as well as in-network caching, and simple, because it obviates complex end-to-end rate control as well as complex interactions between the transport and link layers.

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Format:PDFSize:773 KB
Date:May 2008
Pages:14

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