Journal
PHOTONICS RESEARCH
Volume 3, Issue 3, Pages 48-53Publisher
OPTICAL SOC AMER
DOI: 10.1364/PRJ.3.000048
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Funding
- National Key Basic Research Program of China [2013CB329201]
- National Natural Science Foundation of China [61171066, 61471332]
- State Key Laboratory of Robotics
- Division Of Computer and Network Systems
- Direct For Computer & Info Scie & Enginr [1129043] Funding Source: National Science Foundation
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In underwater optical wireless communication (UOWC), a channel is characterized by abundant scattering/absorption effects and optical turbulence. Most previous studies on UOWC have been limited to scattering/absorption effects. However, experiments in the literature indicate that underwater optical turbulence (UOT) can cause severe degradation of UOWC performance. In this paper, we characterize an UOWC channel with both scattering/absorption and UOT taken into consideration, and a spatial diversity receiver scheme, say a single-input-multiple-output (SIMO) scheme, based on a light-emitting-diode (LED) source and multiple detectors is proposed to mitigate deep fading. The Monte Carlo based statistical simulation method is introduced to evaluate the bit-error-rate performance of the system. It is shown that spatial diversity can effectively reduce channel fading and remarkably extend communication range. (C) 2015 Chinese Laser Press
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