Multipath delay estimation for indoor wireless communication

Author

Takeuchi, Tsutomu ; Sako, Masahiro ; Yoshida, Susumu

Author_Institution

Dept. of Electron., Kyoto Univ., Japan

fYear

1990

fDate

6-9 May 1990

Firstpage

401

Lastpage

406

Abstract

Multipath delay profile measurements were conducted in a meeting room, an office, and a laboratory at 1.5 GHz with 50 ns time resolution to clarify the feasibility of a high-speed digital wireless communication system in an open-structure office room. Continuous power delay profile measurement revealed large variation of power delay profile in the same room. Measured RMS delay spread and mean excess delay were found to be dependent on the size of the room. Multi-reflection on walls was observed when received by a directional antenna. From these results, a simple propagation model for an indoor radio environment is proposed consisting of multi-wall-reflection waves with free space loss and wall-reflection loss, which describes the spatial variation of RMS delay spread

Keywords

delays; digital radio systems; directive antennas; fading; radiowave propagation; 1.5 GHz; RMS delay spread; UHF; digital wireless communication system; directional antenna; indoor multipath radio propagation; laboratory; mean excess delay; meeting room; open-structure office room; power delay profile; wall-reflection loss; Antenna measurements; Delay effects; Delay estimation; Directional antennas; Laboratories; Power measurement; Propagation losses; Size measurement; Time measurement; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1990 IEEE 40th

Conference_Location

Orlando, FL

ISSN

1090-3038

Type

conf

DOI

10.1109/VETEC.1990.110355

Filename

110355