Title :
A deterministic digital simulation model for Suzuki processes with application to a shadowed Rayleigh land mobile radio channel
Author :
Pätzold, Matthias ; Killat, Ulrich ; Laue, Frank
Author_Institution :
Dept. of Digital Commun. Syst., Tech. Univ. Hamburg-Harburg, Germany
fDate :
5/1/1996 12:00:00 AM
Abstract :
We present a novel computer simulation model for a land mobile radio channel. The underlying channel model takes for granted non-frequency-selective fading but considers the effects caused by shadowing. For such a channel model we design a simulation model that is based on an efficient approximation of filtered white Gaussian noise processes by finite sums of properly weighted sinusoids with uniformly distributed phases. In all, four completely different methods for the computation of the coefficients of the simulation model are introduced. Furthermore, the performance of each procedure is investigated on the basis of two quality criteria. All the presented methods have in common the fact that the resulting simulation model has a completely determined fading behavior for all time. Therefore, the simulation model can be interpreted as a deterministic model that approximates stochastic processes such as Rayleigh, log-normal, and Suzuki (1977) processes
Keywords :
Gaussian noise; Rayleigh channels; approximation theory; digital simulation; fading; land mobile radio; log normal distribution; radiowave propagation; simulation; telecommunication computing; white noise; Rayleigh process; Suzuki processes; approximation; channel model; coefficients; computer simulation model; deterministic digital simulation model; filtered white Gaussian noise processes; log-normal process; nonfrequency selective fading; radiowave propagation; shadowed Rayleigh land mobile radio channel; stochastic processes; uniformly distributed phases; weighted sinusoids; Bandwidth; Computational modeling; Computer simulation; Digital filters; Digital simulation; Fading; Gaussian noise; Land mobile radio; Sampling methods; Stochastic processes;
Journal_Title :
Vehicular Technology, IEEE Transactions on