scholarly journals A tight closed-form approximation of the log-normal fading channel capacity

2009 ◽  
Vol 8 (6) ◽  
pp. 2842-2847 ◽  
Author(s):  
F. Heliot ◽  
Xiaoli Chu ◽  
R. Hoshyar ◽  
R. Tafazolli
Keyword(s):  
Closed Form ◽  
Channel Capacity ◽  
Fading Channel ◽  
Log Normal ◽  
Closed Form Approximation

A New Closed Form Approximation for BER for Optical Wireless Systems in Weak Atmospheric Turbulence

2018 ◽  
Vol 39 (2) ◽  
pp. 247-253 ◽  
Author(s):  
Rahul Kaushik ◽  
Vineet Khandelwal ◽  
R. C. Jain
Keyword(s):  
Normal Distribution ◽  
Closed Form ◽  
Atmospheric Turbulence ◽  
Weak Turbulence ◽  
Optical Wireless ◽  
Gauss Hermite Quadrature ◽  
Turbulence Condition ◽  
Log Normal ◽  
Log Normal Distribution ◽  
Closed Form Approximation

AbstractWeak atmospheric turbulence condition in an optical wireless communication (OWC) is captured by log-normal distribution. The analytical evaluation of average bit error rate (BER) of an OWC system under weak turbulence is intractable as it involves the statistical averaging of Gaussian Q-function over log-normal distribution. In this paper, a simple closed form approximation for BER of OWC system under weak turbulence is given. Computation of BER for various modulation schemes is carried out using proposed expression. The results obtained using proposed expression compare favorably with those obtained using Gauss-Hermite quadrature approximation and Monte Carlo Simulations.

A New Closed-Form Expressions of Channel Capacity with MRC, EGC and SC Over Lognormal Fading Channel

2017 ◽  
Vol 97 (3) ◽  
pp. 4183-4197 ◽  
Author(s):  
Diwaker Tiwari ◽  
Sanjay Soni ◽  
Puspraj Singh Chauhan
Keyword(s):  
Closed Form ◽  
Channel Capacity ◽  
Fading Channel

A New Approximate Closed-Form Distribution and Performance Analysis of a Composite Weibull/Log-Normal Fading Channel

2016 ◽  
Vol 92 (3) ◽  
pp. 883-900 ◽  
Author(s):  
Rupender Singh ◽  
Sanjay Kumar Soni ◽  
Ram Shringar Raw ◽  
Sandeep Kumar
Keyword(s):  
Performance Analysis ◽  
Closed Form ◽  
Fading Channel ◽  
And Performance ◽  
Log Normal

Closed Form Approximation of Swap Exposures

2013 ◽  
Author(s):  
Heikki Sepppll ◽  
Ser-Huang Poon ◽  
Thomas Schrrder
Keyword(s):  
Closed Form ◽  
Closed Form Approximation
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