Effectiveness of electromagnetic wave absorbers to improve 5.8 GHz DSRC EM environment inside tunnel

Author

Pokharel, Ramesh K. ; Ichinose, Hirotomo ; Hashimoto, Osamu ; Toyota, Makoto ; Sameda, Itoji ; Wada, Kouji

Author_Institution

Dept. of Electr. Eng. & Electron., Aoyama Gakuin Univ., Kanagawa, Japan

Volume

1

fYear

2005

fDate

8-12 Aug. 2005

Firstpage

147

Abstract

Electromagnetic (EM) wave absorbers have been used to improve the EM environment of an electronic toll collection (ETC) system on an express highway or a wireless local area network (LAN) system in an indoor environment. In this paper, an efficient multi-ray propagation model, which uses a combination of image technique and grid approach to trace multiple signal rays from transmitter to receiver, is employed to analyze the EM environment of a dedicated short-range communication (DSRC) system inside tunnel. The validity of the model employed is discussed by the comparison with the results obtained by an experiment inside tunnel.

Keywords

automated highways; electromagnetic wave absorption; electromagnetic wave propagation; interference suppression; radiofrequency interference; radiowave propagation; ray tracing; wireless LAN; 5.8 GHz; LAN systems; dedicated short-range communication system; electromagnetic wave absorbers; electronic toll collection; multiple signal rays; multiray propagation model; receiver; transmitter; tunnel; wireless local area network; Electromagnetic propagation; Electromagnetic propagation in absorbing media; Electromagnetic scattering; Image analysis; Indoor environments; Local area networks; Road transportation; Signal analysis; Transmitters; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2005. EMC 2005. 2005 International Symposium on

Print_ISBN

0-7803-9380-5

Type

conf

DOI

10.1109/ISEMC.2005.1513490

Filename

1513490