Research Article
Tracking Time-Variant Cluster Parameters in MIMO Channel Measurements
@INPROCEEDINGS{10.1109/CHINACOM.2007.4469589, author={Nicolai Czink and Ruiyuan Tian and Shurjeel Wyne and Fredrik Tufvesson and Jukka-Pekka Nuutinen and Juha Ylitalo and Ernst Bonek and Andreas F. Molisch}, title={Tracking Time-Variant Cluster Parameters in MIMO Channel Measurements}, proceedings={2nd International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2008}, month={3}, keywords={Acoustic scattering Azimuth Clustering algorithms Costs Information technology Joints MIMO Solid modeling Stochastic processes Testing}, doi={10.1109/CHINACOM.2007.4469589} }
- Nicolai Czink
Ruiyuan Tian
Shurjeel Wyne
Fredrik Tufvesson
Jukka-Pekka Nuutinen
Juha Ylitalo
Ernst Bonek
Andreas F. Molisch
Year: 2008
Tracking Time-Variant Cluster Parameters in MIMO Channel Measurements
CHINACOM
IEEE
DOI: 10.1109/CHINACOM.2007.4469589
Abstract
This paper presents a joint clustering-and-tracking framework to identify time-variant cluster parameters for geometry-based stochastic MIMO channel models. The method uses a Kalman filter for tracking and predicting cluster positions, a novel consistent initial guess procedure that accounts for predicted cluster centroids, and the well-known KPowerMeans algorithm for cluster identification. We tested the framework by applying it to two different sets of MIMO channel measurement data, indoor measurements conducted at 2.55 GHz and outdoor measurements at 300 MHz. The results from our joint clustering-and-tracking algorithm provide a good match with the physical propagation mechanisms observed in the measured scenarios.
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