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Journal of Communications Software and Systems, Vol.2 No.4 December 2006. -

In this paper a protocol, local to the satellite link, is defined in order to boost TCP performance in mobile integrated wired-satellite Internet. It has been conceived to help to overcome the well known retransmissions competition problem that arises when a satellite reliable link layer protocol is used to face satellite link errors. This protocol, called Local IPSec-aware Freezing proTocol LIFT, has been designed to allow the satellite gateway, even in the presence of communications secured by IPSec, to freeze the TCP sender when it perceives a possible delay due to satellite channel conditions. The effectiveness of LIFT has been evaluated, using the ns-2 tool, in terms of Web page download mean time for a satellite mobile host. Simulation results have shown that the adoption of LIFT protocol provides substantial improvements in TCP performance.

Satellite; Performance; Mobility; TCP Freezing; ARQ; IPSec.



Author: Giovanni Ciccarese - ; Dept. of Innovation Engineering, University of Lecce, Via Monteroni, 73100 Lecce, Italy Mario De Blasi - ;

Source: http://hrcak.srce.hr/



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