Second-Order Statistics of Equal-Gain and Maximal-Ratio Combining for the ¿ ¿ ¿ (Generalized Gamma) Fading Distribution

2006 ◽  
Author(s):  
Daniel Da Costa ◽  
Michel Yacoub ◽  
Gustavo Fraidenraich
Keyword(s):  
Order Statistics ◽  
Second Order ◽  
Maximal Ratio Combining ◽  
Second Order Statistics ◽  
Generalized Gamma

Second-Order Statistics of MRC Reception With a Transparent Amplify-and-Forward Relay

2020 ◽  
Vol 12 (1) ◽  
pp. 1-14
Author(s):  
Jia-Chin Lin ◽  
Chun-Lin Lin
Keyword(s):  
Order Statistics ◽  
Spatial Diversity ◽  
Second Order ◽  
Maximal Ratio Combining ◽  
Relay Network ◽  
Upper And Lower Bounds ◽  
Amplify And Forward ◽  
Second Order Statistics ◽  
Af Relay ◽  
The Impact

Achievable spatial diversity supported by a single transparent amplify-and-forward (AF) relay relies on disintegrated channel state information (CSI) that can be acquired at the destination. This paper studies the impact of the quantization of the source-relay (SR) CSI in terms of the first- and second-order statistics of maximal-ratio combining (MRC) reception with the incomplete SR CSI at the destination. Probability density functions (PDFs) of the upper and lower bounds of the signal-to-noise ratio (SNR) achieved at the destination are derived. Corresponding level-crossing rate (LCR) and average fade-duration (AFD), which are undoubtedly required to choose parameters of forward error correcting (FEC) mechanisms across the transparent AF relay network, are evaluated via Monte Carlo simulations. The simulations show that the SNR PDF, LCR and AFD highly depends not only on the accuracy of SR CSI at the destination but also on the location of the AF relay.

Second-order statistics of natural images

2003 ◽  
Vol 52-54 ◽  
pp. 467-472 ◽  
Author(s):  
Hauke Bartsch ◽  
Klaus Obermayer
Keyword(s):  
Order Statistics ◽  
Second Order ◽  
Natural Images ◽  
Second Order Statistics
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