cnr.isti/2003-TR-69
Collezione
cnr.isti
Istituzione
cnr.isti
Titolo
Goodput optimization of long-lived TCP connections in a faded satellite channel. Extended Version.
Autore/i
Celandroni, Nedo
( WN )
Affiliazione
( cnr )
CNR-ISTI, Pisa
Autore/i
Ferro, Erina
( WN )
Affiliazione
( cnr )
CNR-ISTI, Pisa
Autore/i
Potort́, Francesco
( WN )
Affiliazione
( cnr )
CNR-ISTI, Pisa
E-Mail (compilatore/referente)
pillitteri@isti.cnr.it
Lingua sommario
English
Sommario in Inglese
The 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 documento
English
Soggetti
Long-lived TCP connections
Soggetti
FEC
Soggetti
satellite channel
Soggetti
rain fading
Soggetto_ACM
C.2.6 Internetworking
Tipo
TR Technical Report
Data di creazione
2003-12-12
Numero documento/Codice originale
ercim.cnr.isti//2003-TR-69
Note
The document :
Data inserimento
January 30, 2004
Data modifica
24/11/2011
Tipologia
Rapporti tecnici
Disciplina di riferimento
Computer Science & Engineering
Area di valutazione
01 - Scienze matematiche e informatiche
Codice
/cnr.isti/2003-TR-69
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