High-speed low-power parallel Random Number Generator for wireless channel emulators

Castillo, J. Vázquez; Vela-Garcia, L.; Parra-Michel, R.; Atoche, A. Castillo; Estrada-López, Johan J.

doi:10.1109/lascas.2012.6180346

Cited by 1 publication

(1 citation statement)

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“…In addition to the path gains c n and Doppler frequencies f n , the phases θ n have been computed using a uniform random number generator, as reported in [30]. For the generation of Rayleigh processes, the LOS component in (2) has been set to zero, that is, m = 0.…”

Section: Test Configurationmentioning

confidence: 99%

An Accurate Hardware Sum-of-Cisoids Fading Channel Simulator for Isotropic and Non-Isotropic Mobile Radio Environments

Vela-Garcia

Castillo

Parra-Michel

et al. 2012

Modelling and Simulation in Engineering

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The rapid technological development in the field of wireless communications calls for devices capable of reproducing and simulating the behavior of the channel under realistic propagation conditions. This paper presents a hardware fading channel simulator that is able to generate stochastic processes characterized by symmetrical and asymmetrical Doppler power spectral densities (PSDs) depending on the assumption of isotropic or non-isotropic scattering. The concept of the proposed hardware simulator is based on an implementation of the sum-of-cisoids (SOC) method. The hardware simulator is capable of handling any configuration of the cisoid's amplitudes, frequencies, and phases. Each of the cisoids that constitutes the SOC model is implemented using a piecewise polynomial approximation technique. The investigation of the higher-order statistics of the generated fading processes, like the level-crossing rate (LCR) and the average duration of fades (ADF), shows that our design is able to reproduce accurately the key features of realistic channel models that are considered as candidates for the latest wireless communication standards.

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Section: Test Configurationmentioning

confidence: 99%