An Accurate and Compact Rayleigh and Rician Fading Channel Simulator

Author(s):  
Amirhossein Alimohammad ◽  
Saeed Fouladi Fard ◽  
Bruce F. Cockburn ◽  
Christian Schlegel
Author(s):  
Santhosh Kumar B ◽  
K. Ayyappa Swamy

<p class="abstract">By realizing the concept of implementation of the radio propagation channels on simulators is the eminent intention of this work. Even though prototyping software simulators are effortless to design we prefer hardware simulators as they endeavors distinguishable quickness, compared to earlier. Prior to this work fading channels like Gaussian, Rayleigh and Rician fading channel simulators were executed on hard ware.(i.e. FPGA) The significant target  of this attempt is to implement Nakagami-m  fading channel on hardware as they preserved for  unsubstantial consideration. While differentiating with other fading channels  Nakagami-m fading channel acquires wide spread applications, as its capability of providing  appropriate fit for practical fading data, as this is flexible through its size parameter ‘m’, over which representation of signal fading conditions that vary  from serious to modest, to normal  fading or no fading is accomplished . The proposed hardware simulator can hatches complex Nakagami variates after it was implemented on XilinxSpartan-xc3s500e-4fg320 FPGA. This is operated at 50MHz.</p>


2010 ◽  
pp. 1741-1752
Author(s):  
A. Chandra ◽  
C. Bose

Simple closed-form solutions for the average error rate of several coherent modulation schemes including square M-QAM, DBPSK and QPSK operating over slow flat Rician fading channel are derived. Starting from a novel unified expression of conditional error probability the error rates are analysed using PDF based approach. The derived end expressions composed of infinite series summations of Gauss hypergeometric function are accurate, free from any numerical integration and general enough, as it encompasses as special situations, some cases of non-diversity and Rayleigh fading. Error probabilities are graphically displayed for the modulation schemes for different values of the Rician parameter K. In addition, to examine the dependence of error rate performance of M-QAM on the constellation size, numerical results are plotted for various values of M. The generality of the analytical results presented offers valuable insight into the performance evaluation over a fading channel in a unified manner.


2020 ◽  
Vol 22 (6) ◽  
pp. 065602
Author(s):  
Lingying Wu ◽  
Wei Tan ◽  
Xianwei Huang ◽  
Yanfeng Bai ◽  
Xiquan Fu

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