Scheduled System Maintenance:
Some services will be unavailable Sunday, March 29th through Monday, March 30th. We apologize for the inconvenience.
By Topic

Radio propagation studies in a small city for universal portable communications

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
1 Author(s)
Devasirvatham, D. ; Bell Commun. Res. Inc., Red Bank, NJ, USA

Time-delay spread and signal level measurements were performed in the streets of a small city at 850 MHz. The maximum root mean square (RMS) time-delay spread observed was 640 ns. However, this dropped to 330 ns for cell radii of 150 m, which is considered a likely size for personal communications systems. RMS delay spread was under 110 ns for cell radii under 75 m or where there was a strong line-of-sight path. When both the transmitter and receiver were on the same road, received power levels followed a two-path model, together with about 0.02 dB/m additional attenuation. A weak but consistent relationship of a decade of increase in RMS time-delay spread for about an 80 dB decrease in received power levels was also found at this site

Published in:

Vehicular Technology Conference, 1988, IEEE 38th

Date of Conference:

15-17 Jun 1988