Narrowband channel characterization in urban environment

Abstract

In countries with constricted land area, in instances like Singapore, the spatial

architecture of the urban environment is converging into a dense collation of

towering skyscrapers. These high-rise buildings are impedance to Line-Of-Sight

(LOS) radio propagation. Hence, the large-scale and small-scale fading

characteristics of the urban environment have been, and remain ever relevant for

radio designers for effective wireless communication.

The aim of this project is to better the comprehension of radio propagation

characteristics, the path loss and measure techniques of narrowband signals. The

procedures, processes, results and findings of this project are documented in this

report.

The band of frequencies of interested was from the VHF to UHF frequency bands

which most of our daily used technological products operates within. This comprises

of objects like the television and mobile phones to systems such as the Wi-Fi and

GPS networks.

Multiple sets of data were collected at various urban locations with varying

surroundings using Continuous Wave (CW) for Narrowband radio waves of multiple

frequencies. The results are processed and analysed.