Radio Channel Spatial Propagation Model for Mobile 3G in Smart Antenna Systems

Angel ANDRADE  David COVARRUBIAS  

Publication
IEICE TRANSACTIONS on Communications   Vol.E86-B   No.1   pp.213-220
Publication Date: 2003/01/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
Category: 
Keyword: 
angle spread,  Gaussian scatter density,  smart antennas,  statistical propagation,  

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Summary: 
Array antennas are employed at the receiver for a variety of purposes such as to combat fading or to reduce co-channel interference. To evaluate the performance of a wireless communications system using antenna arrays it becomes necessary to have spatial channel models that describe the Angle of Arrival (AOA), Time of Arrival (TOA) and the Angle Spread (AS) of the multipath components. Among the most widely used radio propagation models is the single bounce scattering geometric model, where propagation between the transmitting and receiving antennas is assumed to take place via single scattering from an intervening obstacle. Currently, several geometric models are available such as circular and elliptical scattering models, with each model being applicable to a specific environment type. This paper addresses the modeling, simulation and evaluation of the angle spread in smart antenna systems taking into account the Gaussian density model, and proves that the model finds use both in a micro cell as well as in a macro cell environment. Moreover, we show statistics for the angle and time of arrival.