Please use this identifier to cite or link to this item: https://doi.org/10.1109/LPT.2012.2218652
Title: Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions
Authors: Wang, Z.
Zhong, W.-D.
Yu, C. 
Keywords: Atmospheric turbulence
coherent detection
dynamic decision threshold
free-space optical (FSO)
Issue Date: 2012
Citation: Wang, Z., Zhong, W.-D., Yu, C. (2012). Performance improvement of OOK free-space optical communication systems by coherent detection and dynamic decision threshold in atmospheric turbulence conditions. IEEE Photonics Technology Letters 24 (22) : 2035-2037. ScholarBank@NUS Repository. https://doi.org/10.1109/LPT.2012.2218652
Abstract: In this letter, we analyze the performance improvement of on-off-keying free-space optical communication systems in atmospheric turbulence conditions due to coherent detection and the dynamic decision threshold (DDT) scheme. Our analytical results show that the DDT scheme provides a 5.7-dB power reduction for achieving a bit error rate of 10-3 compared with the conventional fixed decision threshold scheme. In addition, the improvement achieved by the DDT scheme is related to the strength of amplitude and phase fluctuations, not to the power of the local oscillator. © 1989-2012 IEEE.
Source Title: IEEE Photonics Technology Letters
URI: http://scholarbank.nus.edu.sg/handle/10635/82877
ISSN: 10411135
DOI: 10.1109/LPT.2012.2218652
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