Title :
LDPC-coded optical PPM communication system over the atmosphere turbulence channels
Author :
Dou, Zheng ; Sha, Xuejun ; Wang, Yong ; Tian, Danyang
Author_Institution :
Commun. Res. Centre, Harbin Inst. of Technol., Harbin, China
Abstract :
We have studied the PPM signal demodulation method and adopted a simplified method of extracting soft information. On this basis, the LDPC as channel coding code is applied into the atmosphere laser communication system, and LDPC-coded optical PPM system is simulated in the atmosphere turbulence channels with combination of the simplified extracting software information method. The simulation results show that the above program can satisfy the need of atmosphere laser communication system.
Keywords :
atmospheric turbulence; channel coding; demodulation; optical fibre communication; optical modulation; parity check codes; pulse position modulation; PPM signal demodulation method; atmosphere laser communication system; atmosphere turbulence channels; channel coding code; low density parity check-coded optical PPM communication system; Atmosphere; Atmospheric modeling; Fluctuations; Optical attenuators; Optical modulation; Optical pulses; Optical refraction; Optical scattering; Optical variables control; Pulse modulation; Low Density Parity Check code; atmospheric laser communication; atmospheric turbulence; pulse position modulation;
Conference_Titel :
Information and Automation (ICIA), 2010 IEEE International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4244-5701-4
DOI :
10.1109/ICINFA.2010.5512319
