NDLI: A preliminary comparison of two propagation prediction methods for 2-D microcells: ray tracing and TLM

Content Provider	IEEE Xplore Digital Library
Author	Jingming Li Wagen, J.-F. Lachat, E.
Copyright Year	1996
Description	Author affiliation: Mobile Commun., Swiss Telecom PTT, Bern, Switzerland (Jingming Li; Wagen, J.-F.; Lachat, E.)
Abstract	This paper presents a preliminary comparison of two coverage prediction methods developed for urban microcellular environments. In this study a particular building layout is chosen as an example. The two considered methods are (1) a ray tracing method taking into account multiple specular reflections and single diffraction phenomena and (2) a time domain approach based on a transmission line matrix (TLM) method. Both methods consider infinitely high buildings and no ground reflection. The results of both methods are compared to measurements provided by KPN Research, (Netherlands). The prediction results of the ray tracing clearly show the contributions of the reflected ray which can be traced individually. The TLM method also produces results where reflections can be identified although not as clearly. Comparisons of prediction results provide an insight on measurements that can be performed to assess the existence of specular reflection in microcellular environments. Good agreement is achieved between either predictions and the measurements, even though the relevant buildings are not always above the base station antenna but only cross the radials from the base station antenna to the mobile.
Starting Page	31
Ending Page	35
File Size	707690
Page Count	5
File Format	PDF
ISBN	0780331575
ISSN	10903038
DOI	10.1109/VETEC.1996.503402
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-04-28
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Prediction methods Reflection Ray tracing Transmission line matrix methods Antenna measurements Base stations Mobile antennas Diffraction Transmission line measurements Performance evaluation
Content Type	Text
Resource Type	Article

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