On Cost Function Analysis for Antenna Optimisation in UMTS Networks

Konferenz: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
11.09.2005 - 14.09.2005 in Berlin, Germany

Tagungsband: PIMRC 2005

Seiten: 5Sprache: EnglischTyp: PDF

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Nawrocki, Maciej J. (Instiute of Telecommunications, Teleinformatics and Acoustics, Wroclaw University of Technology, Wroclaw, Poland)
Nawrocki, Maciej J.; Dohler, Mischa; Aghvami, A. Hamid (Centre for Telecommunications Research, King’s College London, London, UK)

The paper presents a detailed analysis of the properties of the cost function vital toWCDMA radio network optimization. The cost function for the downlink is carefully selected and analyzed numerically for three representative small network layouts and antenna orientation parameters (azimuth and tilt). The analysis includes local minima search, their distribution and their attraction regions. Based on obtained results, several notable conclusions about optimal solutions for network configuration are made as well as some directives for proper optimisation algorithm design suggested.