On the Ergodic Capacity of Dual-Branch Correlated Log-Normal Fading Channels with Applications

Closed-form expressions of the ergodic capacity of independent or correlated diversity branches over Log-Normal fading channels are not available in the literature. Thus, it is become of an interest to investigate the behavior of such metric at high signal-to-noise (SNR). In this work, we propose si...

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Bibliographic Details
Main Authors: AlQuwaiee, Hessa, Alouini, Mohamed-Slim
Format: Conference Proceeding
Language:English
Subjects:
Adaptive optics
Approximation methods
Atmospheric modeling
Diversity reception
Fading
Signal to noise ratio
Switches
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Summary:Closed-form expressions of the ergodic capacity of independent or correlated diversity branches over Log-Normal fading channels are not available in the literature. Thus, it is become of an interest to investigate the behavior of such metric at high signal-to-noise (SNR). In this work, we propose simple closed-form asymptotic expressions of the ergodic capacity of dual-branch correlated Log- Normal corresponding to selection combining, and switch-and-stay combining. Furthermore, we capitalize on these new results to find new asymptotic ergodic capacity of correlated dual- branch free-space optical communication system under the impact of pointing error with both heterodyne and intensity modulation/direct detection.
ISSN:1550-2252
DOI:10.1109/VTCSpring.2015.7145966