Characteristics of a simulated fast fading indoor radio channel

Author

Weerackody, Vijitha

Author_Institution

AT&T Bell Lab., Murray Hill, NJ, USA

fYear

1993

fDate

18-20 May 1993

Firstpage

231

Lastpage

235

Abstract

The channel characteristics of an indoor radio channel vary very slowly. A simple technique that introduces a fast fading effect on the channel is presented. This scheme requires two or more antennas at the transmitter and has to be used with a suitable channel code. Slow time varying phase offsets are provided to each transmit antenna. Because of the resulting fast fading effect, with this scheme, time diversity can be employed usefully in a coded system. The indoor radio channel is represented by a slow fading Rayleigh channel model, and analytical expressions are provided for the correlation of the received signal in the presence of this simulated fast fading scheme. Expressions are derived for the level crossing rate and the average fade duration of the envelope of the received signal

Keywords

Rayleigh channels; antenna phased arrays; channel coding; correlation theory; diversity reception; fading; indoor radio; land mobile radio; simulation; time-varying channels; transmitting antennas; average fade duration; channel characteristics; channel code; level crossing rate; simulated fast fading indoor radio channel; slow fading Rayleigh channel model; time diversity; time varying phase offsets; transmit antennas; Bit error rate; Delay; Fading; Frequency; Indoor radio communication; Mobile antennas; Radio transmitters; Rayleigh channels; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1993., 43rd IEEE

Conference_Location

Secaucus, NJ

ISSN

1090-3038

Print_ISBN

0-7803-1267-8

Type

conf

DOI

10.1109/VETEC.1993.507051

Filename

507051