Abstract-The mobile radio channel can be simulated as a

complex-valued random process with a time-varying variance.

This paper describes an implementation of that process using

a real-time Digital Signal Processing (DSP) technique. The simulator

design permits the user to select the simulation parameters,

including: vehicular speed, carrier frequency, ratio between

the line-of-sight component and the multipath component,

and the variance of average power. The design is based

on variable sampling rate DSP techniques, and offers a novel

solution to suppress the aliasing terms at intermediate stages

where access to analog filters is cumbersome and costly.