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Supporting end-to-end applications over HSDPA by cross-layer signalling
KTH, School of Electrical Engineering (EES), Automatic Control.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9810-3478
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2007 (English)In: IEEE WIRELESS COMMUNICATIONS & NETWORKING CONFERENCE, VOLS 1-9, NEW YORK: IEEE , 2007, 3858-3863 p.Conference paper (Refereed)
Abstract [en]

A new control structure is proposed to improve user experience of wireless Internet. Information on radio bandwidth and queue length available in the radio network, close to the base station, is used in a proxy that resides between the Internet and the cellular system. The control algorithm in the proxy sets the window size according to event-triggered information on radio bandwidth changes and time-triggered information on the queue length at the wireless link. The mechanism is compared to TCP Reno in two simulation scenarios. The first scenario models a dedicated channel with stepwise changes in the bandwidth, while the second scenario models the High-speed Downlink Shared Channel recently introduced by 3GPP. The proposed mechanism significantly reduces the amount of buffer space needed in the radio network, and it also gives modest improvements to user response time and link utilization. Reduced buffering is particularly beneficial for third-party end-to-end real-time services such as voice, video, and online gaming.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2007. 3858-3863 p.
, IEEE Wireless Communications and Networking Conference, ISSN 1525-3511
Keyword [en]
Algorithms, Bandwidth, Base stations, Computer simulation, Internet, Telecommunication links, Telecommunication services
National Category
Control Engineering
URN: urn:nbn:se:kth:diva-26552DOI: 10.1109/WCNC.2007.705ISI: 000252337107070ScopusID: 2-s2.0-36349008227ISBN: 978-1-4244-0658-6OAI: diva2:385382
IEEE Wireless Communications and Networking Conference Hong Kong, PEOPLES R CHINA, MAR 11-15, 2007
Available from: 2011-01-11 Created: 2010-11-25 Last updated: 2012-02-01Bibliographically approved

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Möller, NielsFischione, CarloJohansson, Karl Henrik
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Automatic ControlACCESS Linnaeus Centre
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