The Impact of RLC Delivery Sequence on FTP Performance in UMTS

Oumer Teyeb; Malek Boussif; Troels Bundgaard Sørensen; Jeroen Wigard; Preben Elgaard Mogensen

The Impact of RLC Delivery Sequence on FTP Performance in UMTS

Oumer Teyeb, Malek Boussif, Troels Bundgaard Sørensen, Jeroen Wigard, Preben Elgaard Mogensen

Department of Electronic Systems

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

Abstract

The Radio Link Control (RLC) protocol of Universal Mobile Telecommunication System (UMTS) provides an option for in- or out-of-sequence delivery of Service Data Units (SDUs) to upper layers. In this paper, the impact of this setting on the performance of File Transport Protocol (FTP) sessions is investigated. The investigations are carried out using a real-time emulation platform, and Transmission Control Protocol (TCP) with and without Selective Acknowledgement/Forward Acknowledgment (SACK/FACK) options. The results show that out-of-sequence delivery has a negative impact at higher bandwidths and TCP FACK exacerbates the problem. This is mainly due to the aggressive retransmission strategy employed by FACK, which considers the gaps in a SACK report caused by reordering as lost segments and retransmits them immediately.

Original language	English
Title of host publication	Proceedings of the International Symposium on Wireless Personal Multimedia Communications (WPMC 2005)
Publisher	Center for TeleInFrastruktur (CTIF), Aalborg Universitet
Publication date	2005
Publication status	Published - 2005
Event	International Symposium on Wireless Personal Multimedia Communications - Aalborg, Denmark Duration: 17 Sept 2005 → 22 Sept 2005 Conference number: 8th

Conference

Conference	International Symposium on Wireless Personal Multimedia Communications
Number	8th
Country/Territory	Denmark
City	Aalborg
Period	17/09/2005 → 22/09/2005

Keywords

RLC
TCP
Packet delivery order
UMTS
Network emulation

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Cite this

@inproceedings{ca1ffe309c2c11db8ed6000ea68e967b,

title = "The Impact of RLC Delivery Sequence on FTP Performance in UMTS",

abstract = "The Radio Link Control (RLC) protocol of Universal Mobile Telecommunication System (UMTS) provides an option for in- or out-of-sequence delivery of Service Data Units (SDUs) to upper layers. In this paper, the impact of this setting on the performance of File Transport Protocol (FTP) sessions is investigated. The investigations are carried out using a real-time emulation platform, and Transmission Control Protocol (TCP) with and without Selective Acknowledgement/Forward Acknowledgment (SACK/FACK) options. The results show that out-of-sequence delivery has a negative impact at higher bandwidths and TCP FACK exacerbates the problem. This is mainly due to the aggressive retransmission strategy employed by FACK, which considers the gaps in a SACK report caused by reordering as lost segments and retransmits them immediately.",

keywords = "RLC, TCP, Packet delivery order, UMTS, Network emulation",

author = "Oumer Teyeb and Malek Boussif and S{\o}rensen, {Troels Bundgaard} and Jeroen Wigard and Mogensen, {Preben Elgaard}",

year = "2005",

language = "English",

booktitle = "Proceedings of the International Symposium on Wireless Personal Multimedia Communications (WPMC 2005)",

publisher = "Center for TeleInFrastruktur (CTIF), Aalborg Universitet",

note = "International Symposium on Wireless Personal Multimedia Communications ; Conference date: 17-09-2005 Through 22-09-2005",

}

Teyeb, O, Boussif, M, Sørensen, TB, Wigard, J & Mogensen, PE 2005, The Impact of RLC Delivery Sequence on FTP Performance in UMTS. in Proceedings of the International Symposium on Wireless Personal Multimedia Communications (WPMC 2005). Center for TeleInFrastruktur (CTIF), Aalborg Universitet, International Symposium on Wireless Personal Multimedia Communications, Aalborg, Denmark, 17/09/2005.

The Impact of RLC Delivery Sequence on FTP Performance in UMTS. / Teyeb, Oumer; Boussif, Malek; Sørensen, Troels Bundgaard et al.
Proceedings of the International Symposium on Wireless Personal Multimedia Communications (WPMC 2005). Center for TeleInFrastruktur (CTIF), Aalborg Universitet, 2005.

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - The Impact of RLC Delivery Sequence on FTP Performance in UMTS

AU - Teyeb, Oumer

AU - Boussif, Malek

AU - Sørensen, Troels Bundgaard

AU - Wigard, Jeroen

AU - Mogensen, Preben Elgaard

N1 - Conference code: 8th

PY - 2005

Y1 - 2005

N2 - The Radio Link Control (RLC) protocol of Universal Mobile Telecommunication System (UMTS) provides an option for in- or out-of-sequence delivery of Service Data Units (SDUs) to upper layers. In this paper, the impact of this setting on the performance of File Transport Protocol (FTP) sessions is investigated. The investigations are carried out using a real-time emulation platform, and Transmission Control Protocol (TCP) with and without Selective Acknowledgement/Forward Acknowledgment (SACK/FACK) options. The results show that out-of-sequence delivery has a negative impact at higher bandwidths and TCP FACK exacerbates the problem. This is mainly due to the aggressive retransmission strategy employed by FACK, which considers the gaps in a SACK report caused by reordering as lost segments and retransmits them immediately.

AB - The Radio Link Control (RLC) protocol of Universal Mobile Telecommunication System (UMTS) provides an option for in- or out-of-sequence delivery of Service Data Units (SDUs) to upper layers. In this paper, the impact of this setting on the performance of File Transport Protocol (FTP) sessions is investigated. The investigations are carried out using a real-time emulation platform, and Transmission Control Protocol (TCP) with and without Selective Acknowledgement/Forward Acknowledgment (SACK/FACK) options. The results show that out-of-sequence delivery has a negative impact at higher bandwidths and TCP FACK exacerbates the problem. This is mainly due to the aggressive retransmission strategy employed by FACK, which considers the gaps in a SACK report caused by reordering as lost segments and retransmits them immediately.

KW - RLC

KW - TCP

KW - Packet delivery order

KW - UMTS

KW - Network emulation

M3 - Article in proceeding

BT - Proceedings of the International Symposium on Wireless Personal Multimedia Communications (WPMC 2005)

PB - Center for TeleInFrastruktur (CTIF), Aalborg Universitet

T2 - International Symposium on Wireless Personal Multimedia Communications

Y2 - 17 September 2005 through 22 September 2005

ER -

The Impact of RLC Delivery Sequence on FTP Performance in UMTS

Abstract

Conference

Keywords

AUB Link

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