National Key Basic Research Program of China [2013CB329201]
; National Natural Science Foundation of China [61171066, 61471332]
; State Key Laboratory of Robotics
摘要:
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
1.School of Information Science and Technology, University of Science and Technology of China, Hefei, China 2.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China 3.Key Laboratory of Wireless-Optical Communications, Chinese Academy of Sciences, Hefei, China 4.Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, Colorado 80521, USA
Recommended Citation:
Liu, Weihao,Xu ZY,Yang, Liuqing. SIMO detection schemes for underwater optical wireless communication under turbulence[J]. PHOTONICS RESEARCH,2015,3(3):48-53.
