QUALITY MEASUREMENT OF A COLORED GAUSSIAN NOISE GENERATOR HARDWARE IMPLEMENTATION BASED ON STATISTICAL PROPERTIES

Key words: VLSI, Channel Emulation, White Gaussian noise generator, Rayleigh channel

Abstract:
A Colored Gaussian Noise Generator (CGNG) adapted to hardware implementation in FPGA circuit is developed for the mobile communication channel emulation. The CGNG is done with a classical ARMA filter excited by a White Gaussian Noise. The MA filter and the 2nd order AR filter are studied in this work. The statistical properties, i.e. probability density function and power spectral density, of the fixed precision hardware design are mathematically defined. The CGNG can be used for the hardware emulation of the Rayleigh Fading channel. An example of CGNG with the Clarke filter that emulates the mobile communication channel is given.

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Authors: Delphine Derrien,Emmanuel Boutillon

Reference: IEEE International Symposium on Signal Processing and Information Technology, Maroc, Déc. 2002.