Title :
Free-space optical communication with BPSK subcarrier intensity modulation in presence of atmospheric turbulence and pointing error
Author :
Md. Hasan Yeaseen;Fakhrul Azam;Sanat Saha;A. K. M. Islam
Author_Institution :
Dept. Electrical, Electronic and Communication Engineering, Military Institute of Science and Technology, Dhaka, Bangladesh
Abstract :
An analysis has been carried out to evaluate the Signal to Noise Ratio (SNR) and average bit error rate (BER) in presence of pointing error and atmospheric turbulence. The probability density function (pdf) of atmospheric turbulence and pointing error has been combined to find out the joint effect on the BER performance on Free-Space Optical (FSO) system. The average BER is evaluated over the combined pdf of atmospheric turbulence and pointing error. The BER performance results are numerically evaluated for several values of pointing error and different link length using Binary Phase Shift Keying (BPSK) subcarrier intensity modulation. For strong turbulence power penalty is around 20dB, while for strong jitter power penalty is around 30dB at a BER of 10-9 and bit rate of 1 Gbps.
Keywords :
"Bit error rate","Atmospheric modeling","Jitter","Optical transmitters","Receivers","Binary phase shift keying","Adaptive optics"
Conference_Titel :
Computer and Information Technology (ICCIT), 2015 18th International Conference on
DOI :
10.1109/ICCITechn.2015.7488125
