Optimum Number of RLC Retransmissions for Best TCP Performance in UTRAN

Research output: Contribution to journalLiterature review

Abstract

As far as transfer reliability is concerned, the wireless segment of UTRAN is the weakest part of an Internet session. To overcome this imperfection, the RLC protocol features a link-level retransmission mechanism. In this paper, we show by analytical means and computer simulations that for a given Block Error Rate (BLER), the maximum number of RLC transmissions has a very important impact on TCP performance, both Round Trip Time and throughput. We extend existing models to be able to set a maximum number of RLC transmissions, and we determine the corresponding throughput analytically. We also show that, knowing the current BLER, a network operator may tune the maximum number of retransmissions either to reduce the RTT or to increase the throughput.

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Throughput
Internet
Network protocols
Defects
Computer simulation

Cite this

@article{58429f6145534297b6b0b4d7fb2b40ee,
title = "Optimum Number of RLC Retransmissions for Best TCP Performance in UTRAN",
abstract = "As far as transfer reliability is concerned, the wireless segment of UTRAN is the weakest part of an Internet session. To overcome this imperfection, the RLC protocol features a link-level retransmission mechanism. In this paper, we show by analytical means and computer simulations that for a given Block Error Rate (BLER), the maximum number of RLC transmissions has a very important impact on TCP performance, both Round Trip Time and throughput. We extend existing models to be able to set a maximum number of RLC transmissions, and we determine the corresponding throughput analytically. We also show that, knowing the current BLER, a network operator may tune the maximum number of retransmissions either to reduce the RTT or to increase the throughput.",
author = "{De Mey}, Olivier and Laurent Schumacher and Xavier Dubois",
year = "2005",
language = "English",
journal = "Proceedings of the 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), Berlin (Germany), 11-14 September 2005",

}

TY - JOUR

T1 - Optimum Number of RLC Retransmissions for Best TCP Performance in UTRAN

AU - De Mey, Olivier

AU - Schumacher, Laurent

AU - Dubois, Xavier

PY - 2005

Y1 - 2005

N2 - As far as transfer reliability is concerned, the wireless segment of UTRAN is the weakest part of an Internet session. To overcome this imperfection, the RLC protocol features a link-level retransmission mechanism. In this paper, we show by analytical means and computer simulations that for a given Block Error Rate (BLER), the maximum number of RLC transmissions has a very important impact on TCP performance, both Round Trip Time and throughput. We extend existing models to be able to set a maximum number of RLC transmissions, and we determine the corresponding throughput analytically. We also show that, knowing the current BLER, a network operator may tune the maximum number of retransmissions either to reduce the RTT or to increase the throughput.

AB - As far as transfer reliability is concerned, the wireless segment of UTRAN is the weakest part of an Internet session. To overcome this imperfection, the RLC protocol features a link-level retransmission mechanism. In this paper, we show by analytical means and computer simulations that for a given Block Error Rate (BLER), the maximum number of RLC transmissions has a very important impact on TCP performance, both Round Trip Time and throughput. We extend existing models to be able to set a maximum number of RLC transmissions, and we determine the corresponding throughput analytically. We also show that, knowing the current BLER, a network operator may tune the maximum number of retransmissions either to reduce the RTT or to increase the throughput.

M3 - Literature review

JO - Proceedings of the 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), Berlin (Germany), 11-14 September 2005

JF - Proceedings of the 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), Berlin (Germany), 11-14 September 2005

ER -