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Video Streaming in 3.5G: On Throughput-Delay Performance of Proportional Fair Scheduling
KTH, School of Electrical Engineering (EES), Communication Networks.
KTH, School of Electrical Engineering (EES), Communication Networks.ORCID iD: 0000-0002-3704-1338
2006 (English)In: 14th IEEE International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems, 2006. MASCOTS 2006, IEEE Computer Society, 2006, 393-400 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, we study the performance of the proportional fair scheduler, which has been proposed for the emerging 3.5G radio access systems. It maximizes the spectral efficiency of the systems, which is a strong incentive for network providers to use it. Our goal is to investigate whether the proportional fair scheduler also provides benefits to the streaming users. Focus is on the throughput-delay trade-offs associated with video streaming over HSDPA. Special attention is devoted to defining appropriate performance measures and creating a realistic simulation environment. Our results indicate that the opportunistic scheduling faces major difficulties in providing the user-level performance in cases where streaming flows constitute a significant share of the traffic load.

Place, publisher, year, edition, pages
IEEE Computer Society, 2006. 393-400 p.
Series
International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems. Proceedings, ISSN 1526-7539
Keyword [en]
Opportunistic scheduling, Performance measure, Proportional fair scheduler, Proportional fair scheduling, Radio-access system, Realistic simulation, Spectral efficiencies, User-level performance
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-26614DOI: 10.1109/MASCOTS.2006.53Scopus ID: 2-s2.0-84891388159ISBN: 0769525733 (print)ISBN: 978-076952573-0 OAI: oai:DiVA.org:kth-26614DiVA: diva2:372628
Conference
14th IEEE International Symposium on Modeling, Analysis, and Simulation of Computer and Telecommunication Systems, MASCOTS 2006; Monterey, CA; United States; 11 September 2006 through 14 September 2006
Note

QC 20101126

Available from: 2010-11-26 Created: 2010-11-26 Last updated: 2014-02-17Bibliographically approved
In thesis
1. Bit-Rate Allocation, Scheduling, and Statistical Multiplexing for Wireless Video Streaming
Open this publication in new window or tab >>Bit-Rate Allocation, Scheduling, and Statistical Multiplexing for Wireless Video Streaming
2008 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

Due to the scarcity of wireless resources, efficient resource allocation is essential to the success of cellular systems. With the proliferation of bandwidth-hungry multimedia applications with diverse traffic characteristics and quality of service requirements, the resource management is becoming particularly challenging. In this thesis, we address some of the key link-layer resource allocation mechanisms that affect the performance of video streaming in cellular systems: bit-rate allocation, opportunistic scheduling, and statistical multiplexing. The bit-rate allocation problem involves the distortion-optimal assignment of source, channel, and pilot data rates under link capacity constraints. We derive an analytical model that captures the video distortion as a function of these data rates and, based on it, we study various bit-rate allocation strategies. The opportunistic scheduling problem addresses the throughput-optimal assignment of time-slots among users with diverse channel conditions under certain fairness constraints. We focus on two aspects of the opportunistic scheduling: the performance of delay-constrained streaming applications and possible extensions of the opportunistic concepts to multicast scenarios. Finally, the statistical multiplexing is a resource-efficient method for smoothing out the extreme burstiness of video streams. We study possible statistical multiplexing gains of H.264 video streams in the context of E-MBMS architecture.

Place, publisher, year, edition, pages
Stockholm: KTH, 2008. 17 p.
Series
Trita-EE, ISSN 1653-5146 ; 2008:031
Keyword
cellular systems, wireless, resource allocation, scheduling
National Category
Telecommunications
Identifiers
urn:nbn:se:kth:diva-4819 (URN)
Presentation
2008-06-12, Q26, Q, Osquldasvag 6, Stockholm, 14:00 (English)
Opponent
Supervisors
Note
QC 20101126Available from: 2008-06-11 Created: 2008-06-11 Last updated: 2010-11-26Bibliographically approved

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Karlsson, Gunnar

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Citation style
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