Ergodic Capacity Analysis of Free-Space Optical Links With Nonzero Boresight Pointing Errors
Information Theory
2018-05-16 v1 Performance
math.IT
Abstract
A unified capacity analysis of a free-space optical (FSO) link that accounts for nonzero boresight pointing errors and both types of detection techniques (i.e. intensity modulation/direct detection as well as heterodyne detection) is addressed in this work. More specifically, an exact closed-form expression for the moments of the end-to-end signal-to-noise ratio (SNR) of a single link FSO transmission system is presented in terms of well-known elementary functions. Capitalizing on these new moments expressions, we present approximate and simple closed-form results for the ergodic capacity at high and low SNR regimes. All the presented results are verified via computer-based Monte-Carlo simulations.
Keywords
Cite
@article{arxiv.1805.05571,
title = {Ergodic Capacity Analysis of Free-Space Optical Links With Nonzero Boresight Pointing Errors},
author = {Imran Shafique Ansari and Mohamed-Slim Alouini and Julian Cheng},
journal= {arXiv preprint arXiv:1805.05571},
year = {2018}
}