Split TCP for mobile ad hoc networks

摘要: The fairness and throughput of TCP suffer when it is used in mobile ad hoc networks. This because wrongly attributes packet losses due to link failures (a consequence mobility) congestion. resulting overall degradation especially affects connections with a large number hops, where are more likely; thus, short enjoy an unfair advantage. Furthermore, if the IEEE 802.11 MAC protocol used, problems exacerbated protocol-induced capture effect, leading greater unfairness further degradation. We develop scheme, called split TCP, which separates functions congestion control reliable delivery. For any connection, certain nodes along route take up role being proxies for that connection. buffer packets upon receipt administer rate control. buffering enables dropped be recovered from most recent proxy. helps controlling on inter-proxy segments. Thus, we emulate shorter can thereby achieve better parallelism network. Simulations show use improves total by as much 30% typical scenarios reduces significantly. In terms metric introduce, decreases 0.8 0.2 (1.0 maximum unfairness). conclude incorporating beneficial improving performance