An Improved Simulation Model for Rayleigh Fading Channels
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2016, Vol 18, Issue 6
Abstract
Abstract:the model of propagation of electromagnetic energy from transmitter to receiver will be largely by way of scatting, either by reflection from the flat sides of buildings or by diffraction around such buildings or other man-made or natural obstacles in mobile communication. These effects are called multipath propagation resulting in significant fluctuations of the received signal. Generally Rayleigh fading waveforms are often required to simulate in wireless communication channels. In this paper, in order to tackle with statistical property problems of the proposed model that cannot always approach theoretical value, an improved model based on Clarke model is proposed and its statistical properties of first and second-order are also analyzed in detail. Simulation results indicate that the modified amplitude, phase probability density function, the relevant function, the level crossing rate and the average fade duration can coincide with Clarke theoretical model characteristics. It can meet the requirements of the actual channel simulation.
Authors and Affiliations
Cuijuan Guo , Zhen Yang , Zhigang Wu
Keywords
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