Optimal diversity combining based on linear estimation of rician fading channels

2008 ◽  
Vol 56 (10) ◽  
pp. 1612-1615 ◽  
Author(s):  
Jingxian Wu ◽  
Chengshan Xiao
Keyword(s):  
Fading Channels ◽  
Rician Fading ◽  
Diversity Combining ◽  
Linear Estimation ◽  
Rician Fading Channels

Energy Detection with Diversity Reception

2017 ◽  
Vol 3 (1) ◽  
pp. 20
Author(s):  
Sanjeewa P. Herath ◽  
Nandana Rajatheva ◽  
Tho Le-Ngoc ◽  
Chintha Tellambura
Keyword(s):  
Fading Channels ◽  
Energy Detection ◽  
Moment Generating Function ◽  
Rician Fading ◽  
Diversity Combining ◽  
Diversity Reception ◽  
The Moment ◽  
Performance Gains ◽  
Probability Density Function Pdf ◽  
Rician Fading Channels

We characterize the performance of energy detector (ED) over square-law, square-law selection, and switch-and-stay diversity combining schemes. The exact average probabilities of a miss (Pm), and a false alarm (Pf) are derived in closed-form. To derive Pm for versatile Nakagami-m and Rician fading channels, a twofold approach, using the probability density function (PDF) and the moment generating function (MGF), is applied. Using the PDF method, the achievable diversity order over the Nakagami-m channel is derived. However, this method becomes intractable when analyzing Pm of the aforementioned combiners in Rician channels, but the MGF method can handle this case. Our analysis helps to quantify the performance gains of ED due to diversity reception. Theoretical derivations are verified through numerical Monte-Carlo simulation results.

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