NDLI: Prediction and validation of propagation loss in urban micro-cell environment by using ray tracing simulation

Content Provider	IEEE Xplore Digital Library
Author	Nagata, S. Toda, T. Houtao Zhu Takada, J.
Copyright Year	2002
Description	Author affiliation: Dept. of Int. Dev. Eng., Tokyo Inst. of Technol., Japan (Nagata, S.; Toda, T.; Houtao Zhu; Takada, J.)
Abstract	Field test and ray tracing (RT) simulation results for an adaptive array antenna (AAA) for micro-cell environments in central Tokyo area, is presented. The radio frequency was 3.35 GHz. The AAA at the base station was installed at the height below the buildings, i.e. microcell environment was considered. The AAA element spacing was set to be eight wave-length for space diversity. The height of a transmitter antenna at a mobile was 2 m. The distance ranged from 30 to 100 m between the receiver and transmitter antennas. Propagation characteristic measurements show that maximum delay time is less than 0.5-symbol period and averaged delay spread throughout the course is less than 0.05/spl mu/ sec. So the channel is regarded as frequency-flat. RT simulation results are compared with measured ones with respect to the received power at the AAA. The RT simulation results provide good approximation in line-of-sight (LOS) sections and slightly shadowed non-line-of-sight (NLOS). Contrary, in deeply shadowed NLOS area, it gives a large error.
Starting Page	573
Ending Page	576
File Size	519938
Page Count	4
File Format	PDF
ISBN	0780374428
ISSN	13476890
DOI	10.1109/WPMC.2002.1088239
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-10-27
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antenna measurements Delay effects Radio transmitters Transmitting antennas Adaptive arrays Ray tracing Predictive models Propagation losses Antennas and propagation Propagation delay
Content Type	Text
Resource Type	Article

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