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Performance of three, six, nine and twelve sector sites in CDMA: Based on measurements
KTH, Superseded Departments, Signals, Sensors and Systems.
2004 (English)In: IEEE International Symposium on Spread Spectrum Techniques and Applications, 2004, 394-399 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we investigate the performance improvement achieved by increasing the number of sectors on a W-CDMA or CDMA2000 site by increasing the number of sectors from today's typical three to six, nine or twelve. The radio propagation environment determines if the narrow beams can be created and kept separated or if they blur together, which in turn determines the sector-to-sector isolation and the soft-handoff populations. The rate of change in signal strength of the beams also determines whether the handover mechanisms are sufficiently fast to allocate the correct beam. In this paper we analyze these issues based on simultaneous measurements of two antenna panels placed on the top of a building overlooking a typical European urban environment of mostly six to eight stories high buildings. Based on these measurements and simulations we find that a nine-sector site has more than double the capacity of a conventional three-sector site.

Place, publisher, year, edition, pages
2004. 394-399 p.
Keyword [en]
Performance, Radio transmission, Signal processing, Urban environment, W-CDMA, Code division multiple access
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:kth:diva-35674Scopus ID: 2-s2.0-26944432345OAI: oai:DiVA.org:kth-35674DiVA: diva2:429194
Conference
IEEE International Symposium on Spread Spectrum Techniques and Applications, ISSSTA 2004; Sydney
Note
QC 20110704Available from: 2011-07-04 Created: 2011-07-04 Last updated: 2011-07-04Bibliographically approved

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Citation style
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Output format
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