TY - JOUR
T1 - Spectral model of optical scintillation for terrestrial free-space optical communication link design
AU - Kim, Kyung Hwan
AU - Higashino, Takeshi
AU - Tsukamoto, Katsutoshi
AU - Komaki, Shozo
AU - Kazaura, Kamugisha
AU - Matsumoto, Mitsuji
PY - 2011/3
Y1 - 2011/3
N2 - Since a deep and long-term fading in optical intensity results in considerable burst errors in the data, a terrestrial free-space optical (FSO) system has to be designed with consideration of a frequency characteristic of optical scintillation to achieve high quality wireless services over the link. In designing a terrestrial FSO link, we had better design the system considering variations caused by some slow time-varying parameters. This paper proposes a Butterworth-type spectral model of optical scintillation to design a terrestrial FSO link, which enables us to estimate the power spectral density of optical scintillation in a current optical wireless channel when time zone and weather parameters, such as temperature and rainfall intensity, are given. The spectral parameters of optical scintillation, cut-off frequency, and spectral slope are estimated from the data obtained in the experiment, and then their dependencies on time zone, temperature, and rainfall intensity are examined.
AB - Since a deep and long-term fading in optical intensity results in considerable burst errors in the data, a terrestrial free-space optical (FSO) system has to be designed with consideration of a frequency characteristic of optical scintillation to achieve high quality wireless services over the link. In designing a terrestrial FSO link, we had better design the system considering variations caused by some slow time-varying parameters. This paper proposes a Butterworth-type spectral model of optical scintillation to design a terrestrial FSO link, which enables us to estimate the power spectral density of optical scintillation in a current optical wireless channel when time zone and weather parameters, such as temperature and rainfall intensity, are given. The spectral parameters of optical scintillation, cut-off frequency, and spectral slope are estimated from the data obtained in the experiment, and then their dependencies on time zone, temperature, and rainfall intensity are examined.
KW - intensity fluctuation
KW - optical scintillation
KW - power spectral density
KW - terrestrial free-space optical communication
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U2 - 10.1117/1.3557487
DO - 10.1117/1.3557487
M3 - Article
AN - SCOPUS:81755178971
VL - 50
JO - SPIE J
JF - SPIE J
SN - 0091-3286
IS - 3
M1 - 035005
ER -