Original scientific paper
https://doi.org/10.24138/jcomss.v2i4.280
LIFT: a Local IPSec-aware Freezing Protocol to improve TCP Performance in Satellite Networks
Giovanni Ciccarese
; Dept. of Innovation Engineering, University of Lecce, Via Monteroni, 73100 Lecce, Italy
Mario De Blasi
; Dept. of Innovation Engineering, University of Lecce, Via Monteroni, 73100 Lecce, Italy
Sebastiano Elia
; Dept. of Innovation Engineering, University of Lecce, Via Monteroni, 73100 Lecce, Italy
Cosimo Palazzo
; Dept. of Innovation Engineering, University of Lecce, Via Monteroni, 73100 Lecce, Italy
Luigi Patrono
orcid.org/0000-0002-8591-1190
; Dept. of Innovation Engineering, University of Lecce, Via Monteroni, 73100 Lecce, Italy
Abstract
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.
Keywords
Satellite; Performance; Mobility; TCP Freezing; ARQ; IPSec
Hrčak ID:
180875
URI
Publication date:
22.12.2006.
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