Cross-layer modeling of capacity of UMTS/HSDPA networks under dynamic user setting

Tijani Chahed; Mariana Dirani

doi:10.1109/VTCF.2006.444

Cross-layer modeling of capacity of UMTS/HSDPA networks under dynamic user setting

Tijani Chahed
, Mariana Dirani

CNRS UMR 5157 SAMOVAR

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We focus in this paper on the cross-layer modeling of the integration of streaming and elastic flows in the downlink of UMTS/HSDPA systems. Streaming flows are transported over dedicated channels whereas elastic ones shall share the left over capacity according to opportunistic scheduling implemented at the MAC layer. We first study the system at the MAC layer and then make use of these results at the flow level where the system is studied in a dynamic setting. The quasi-stationary assumption makes it possible to obtain a product form expression for the steady-state probabilities of the system. Flow level dynamics are then used at the packet level to investigate TCP performance and quantify the probability of a spurious event, namely time-out. Several performance metrics are then derived and give hints into dimensioning issues of such a system.

Original language	English
Title of host publication	2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
Pages	2146-2150
Number of pages	5
DOIs	https://doi.org/10.1109/VTCF.2006.444
Publication status	Published - 1 Dec 2006
Event	2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall - Montreal, QC, Canada Duration: 25 Sept 2006 → 28 Sept 2006

Publication series

Name	IEEE Vehicular Technology Conference
ISSN (Print)	1550-2252

Conference

Conference	2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
Country/Territory	Canada
City	Montreal, QC
Period	25/09/06 → 28/09/06

Access to Document

10.1109/VTCF.2006.444

Cite this

@inproceedings{41640568b89c4d639fd7e4d284a6213d,

title = "Cross-layer modeling of capacity of UMTS/HSDPA networks under dynamic user setting",

abstract = "We focus in this paper on the cross-layer modeling of the integration of streaming and elastic flows in the downlink of UMTS/HSDPA systems. Streaming flows are transported over dedicated channels whereas elastic ones shall share the left over capacity according to opportunistic scheduling implemented at the MAC layer. We first study the system at the MAC layer and then make use of these results at the flow level where the system is studied in a dynamic setting. The quasi-stationary assumption makes it possible to obtain a product form expression for the steady-state probabilities of the system. Flow level dynamics are then used at the packet level to investigate TCP performance and quantify the probability of a spurious event, namely time-out. Several performance metrics are then derived and give hints into dimensioning issues of such a system.",

author = "Tijani Chahed and Mariana Dirani",

year = "2006",

month = dec,

day = "1",

doi = "10.1109/VTCF.2006.444",

language = "English",

isbn = "1424400635",

series = "IEEE Vehicular Technology Conference",

pages = "2146--2150",

booktitle = "2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall",

note = "2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall ; Conference date: 25-09-2006 Through 28-09-2006",

}

Chahed, T & Dirani, M 2006, Cross-layer modeling of capacity of UMTS/HSDPA networks under dynamic user setting. in 2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall., 4109709, IEEE Vehicular Technology Conference, pp. 2146-2150, 2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall, Montreal, QC, Canada, 25/09/06. https://doi.org/10.1109/VTCF.2006.444

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N2 - We focus in this paper on the cross-layer modeling of the integration of streaming and elastic flows in the downlink of UMTS/HSDPA systems. Streaming flows are transported over dedicated channels whereas elastic ones shall share the left over capacity according to opportunistic scheduling implemented at the MAC layer. We first study the system at the MAC layer and then make use of these results at the flow level where the system is studied in a dynamic setting. The quasi-stationary assumption makes it possible to obtain a product form expression for the steady-state probabilities of the system. Flow level dynamics are then used at the packet level to investigate TCP performance and quantify the probability of a spurious event, namely time-out. Several performance metrics are then derived and give hints into dimensioning issues of such a system.

AB - We focus in this paper on the cross-layer modeling of the integration of streaming and elastic flows in the downlink of UMTS/HSDPA systems. Streaming flows are transported over dedicated channels whereas elastic ones shall share the left over capacity according to opportunistic scheduling implemented at the MAC layer. We first study the system at the MAC layer and then make use of these results at the flow level where the system is studied in a dynamic setting. The quasi-stationary assumption makes it possible to obtain a product form expression for the steady-state probabilities of the system. Flow level dynamics are then used at the packet level to investigate TCP performance and quantify the probability of a spurious event, namely time-out. Several performance metrics are then derived and give hints into dimensioning issues of such a system.

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M3 - Conference contribution

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BT - 2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall

T2 - 2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall

Y2 - 25 September 2006 through 28 September 2006

ER -

Cross-layer modeling of capacity of UMTS/HSDPA networks under dynamic user setting

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