TY - JOUR
T1 - Multiple Rayleigh fading channels modeling based on sum-of-sinusoids model
AU - Gan, Yu
AU - Wu, You
N1 - Publisher Copyright:
© John Wiley & Sons, Ltd.
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Assessing the performance of communication system is critical in system design in mobile communication study. Numerous methodologies have been employed to facilitate the assessment, amongst which generation of multiple fading channels is widely used and thus of great interest to us. Specifically,multiple Rayleigh fading channels are extensively utilized in simulation of the following: MIMO channels, amplify-And-forward fading channels, frequency-selective channels, etc. The existing model to generate Rayleigh fading channels is the sum of sinusoids (SOS). However, the SOS model is flawed, as it sometimes generates impure correlated channels. That is, a small fraction of correlated channels are generated when we anticipate uncorrelated or vice versa. In this paper, on the basis of the concept of SOS, we introduce a new computational model to generate Rayleigh channels that completely match our anticipation-fully uncorrelated or fully correlated channels. Additionally, we also propose a design method to reduce the number of sinusoids, thus we achieve reduced computational cost of the system. Simulation results and comparison analysis indicate that, with reduced computational cost, our method is able to produce pure Rayleigh fading channels-100% uncorrelated or the opposite.
AB - Assessing the performance of communication system is critical in system design in mobile communication study. Numerous methodologies have been employed to facilitate the assessment, amongst which generation of multiple fading channels is widely used and thus of great interest to us. Specifically,multiple Rayleigh fading channels are extensively utilized in simulation of the following: MIMO channels, amplify-And-forward fading channels, frequency-selective channels, etc. The existing model to generate Rayleigh fading channels is the sum of sinusoids (SOS). However, the SOS model is flawed, as it sometimes generates impure correlated channels. That is, a small fraction of correlated channels are generated when we anticipate uncorrelated or vice versa. In this paper, on the basis of the concept of SOS, we introduce a new computational model to generate Rayleigh channels that completely match our anticipation-fully uncorrelated or fully correlated channels. Additionally, we also propose a design method to reduce the number of sinusoids, thus we achieve reduced computational cost of the system. Simulation results and comparison analysis indicate that, with reduced computational cost, our method is able to produce pure Rayleigh fading channels-100% uncorrelated or the opposite.
KW - Mobile communications
KW - Multiple fading channels
KW - Rayleigh process
KW - SOS model
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U2 - 10.1002/dac.2521
DO - 10.1002/dac.2521
M3 - Article
AN - SCOPUS:84911962316
SN - 1074-5351
VL - 27
SP - 2997
EP - 3012
JO - International Journal of Communication Systems
JF - International Journal of Communication Systems
IS - 11
ER -