TitoloGoodput optimization of long-lived TCP connections in a faded satellite channel. Extended Version.
Autore/iCelandroni, Nedo    ( WN )
Affiliazione ( cnr )   CNR-ISTI, Pisa
Autore/iFerro, Erina    ( WN )
Affiliazione ( cnr )   CNR-ISTI, Pisa
Autore/iPotort́, Francesco    ( WN )
Affiliazione ( cnr )   CNR-ISTI, Pisa
E-Mail (compilatore/referente)pillitteri@isti.cnr.it
Lingua sommarioEnglish
Sommario in IngleseThe optimization of the end-to-end throughput of a TCP connection over geostationary satellite links is a challenging research topic because the high delay-bandwidth product, together with a non-negligible random loss of packets, are conditions which differ considerably from the original environment for which TCP was originally designed. As a result, TCP performance is significantly impaired by the channel bit error rate. In this paper we investigate the application of different FEC (forward error correction) types/rates and different bit rates, for the optimization of TCP goodput, in transmissions over a rain-faded geostationary satellite channel, provided that the end-to-end protocols are left unaltered. We compare physical-level FEC techniques, such as convolutional encoding/Viterbi decoding and Reed Solomon, link-level erasure codes and their combinations, over a wide field of signal-to-noise conditions of the satellite channel. The case of multiple connections per link is also analyzed, in addition to that of a single connection per link. In order to evaluate the throughput of a TCP long-lived connection we used a method that is midway between analysis (fluid model) and simulation.
Lingua documentoEnglish
SoggettiLong-lived TCP connections
Soggettisatellite channel
Soggettirain fading
Soggetto_ACMC.2.6 Internetworking
TipoTR Technical Report
Data di creazione2003-12-12
Numero documento/Codice originaleercim.cnr.isti//2003-TR-69
NoteThe document :
Data inserimentoJanuary 30, 2004
Data modifica24/11/2011
TipologiaRapporti tecnici
Disciplina di riferimentoComputer Science & Engineering
Area di valutazione01 - Scienze matematiche e informatiche

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