An adaptive step size power control with transmit power control command aided mobility estimation

Patachaianand, R; Sandrasegaran, K

An adaptive step size power control with transmit power control command aided mobility estimation

Patachaianand, R Sandrasegaran, K

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Publication Type:: Conference Proceeding
Citation:: Proceedings of the 4th IASTED Asian Conference on Communication Systems and Networks, AsiaCSN 2007, 2007, pp. 34 - 39
Issue Date:: 2007-12-01

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Field	Value	Language
dc.contributor.author	Patachaianand, R	en_US
dc.contributor.author	Sandrasegaran, K https://orcid.org/0000-0003-1270-5756	en_US
dc.date.issued	2007-12-01	en_US
dc.identifier.citation	Proceedings of the 4th IASTED Asian Conference on Communication Systems and Networks, AsiaCSN 2007, 2007, pp. 34 - 39	en_US
dc.identifier.isbn	9780889866584	en_US
dc.identifier.uri	http://hdl.handle.net/10453/2060
dc.description.abstract	Power control is one of the most important mechanisms influencing on the maximum capacity and performance of Wideband Code Division Multiple Access (WCDMA) systems. Power control algorithms used in Universal Mobile Telecommunication System (UMTS) are based on fixed step size algorithms. The algorithms adjust their transmitted power based on Transmit Power Control (TPC) commands. In this paper, we show that there is a significant correlation between TPC sequences and user mobility. We then introduce a new parameter called Consecutive TPC Ratio (CTR), which will be varied by user speeds. A new adaptive power control algorithm is also proposed. This new power control algorithm uses CTRs to adjust power control step sizes. The result shows that the proposed algorithm outperforms fixed step power control.	en_US
dc.relation.ispartof	Proceedings of the 4th IASTED Asian Conference on Communication Systems and Networks, AsiaCSN 2007	en_US
dc.title	An adaptive step size power control with transmit power control command aided mobility estimation	en_US
dc.type	Conference Proceeding
utslib.for	0805 Distributed Computing	en_US
dc.location.activity	Thailand	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CRIN - Realtime Information Networks
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US

Abstract:

Power control is one of the most important mechanisms influencing on the maximum capacity and performance of Wideband Code Division Multiple Access (WCDMA) systems. Power control algorithms used in Universal Mobile Telecommunication System (UMTS) are based on fixed step size algorithms. The algorithms adjust their transmitted power based on Transmit Power Control (TPC) commands. In this paper, we show that there is a significant correlation between TPC sequences and user mobility. We then introduce a new parameter called Consecutive TPC Ratio (CTR), which will be varied by user speeds. A new adaptive power control algorithm is also proposed. This new power control algorithm uses CTRs to adjust power control step sizes. The result shows that the proposed algorithm outperforms fixed step power control.

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http://hdl.handle.net/10453/2060