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Transmission Timing - A Control Approach to Distributed Uplink Scheduling in WCDMA
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
2004 (English)In: Proceedings of Reglermöte 2004, 2004Conference paper, Published paper (Other academic)
Abstract [en]

Centralized control and coordination of the connections in a wireless network is not possible in practice. To keep the delay from measure-ment instants to actuating the decisions, distributed control is required. This paper focuses on the uplink (from mobiles to base stations) and dis-cusses distributing the decision of when and when not to transmit data (distributed scheduling) to the mobiles. The scheme, uplink transmission timing, utilizes mobile transmitter power control feedback from the base station receiver to determine whether the channel is favorable or not compared to the average channel condition. Thereby, the battery consumption and disturbing power to other connections are reduced. The algorithm can be described as a feedback control system. Some transient behaviors are analyzed using systems theory, and supported by wireless network simulations of a system with a WCDMA (Wideband Code Division Multiple Access) radio interface as in most 3G systems.

Place, publisher, year, edition, pages
2004.
Keyword [en]
UMTS, Power control, Distributed systems
National Category
Engineering and Technology Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-90354OAI: oai:DiVA.org:liu-90354DiVA: diva2:612952
Conference
Reglermöte 2004, Göteborg, Sweden, May, 2004
Available from: 2013-03-25 Created: 2013-03-24 Last updated: 2013-03-25

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Gustafsson, FredrikGunnarsson, FredrikGeijer Lundin, ErikTörnqvist, David

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  • nn-NB
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Output format
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