Title :
Analysis of improved performance for a satellite-to-ground coherent optical communication system with DQPSK modulation due to phase estimation
Author :
Liu, Peng ; Yan, Juanjuan ; Zheng, Zheng
Author_Institution :
Sch. of Electron. & Inf. Eng., Beihang Univ., Beijing, China
Abstract :
The performance of a satellite-to-ground optical communication system with phase modulation is limited by phase fluctuations induced by atmospheric turbulence. To improve the system performance, one effective way is to use coherent detection. In this paper, a satellite-to-ground coherent optical communication system with differential quadrature phase-shift keying (DQPSK) modulation is studied, and a phase estimation algorithm based on M-th power scheme is used. The simulation results show that the phase noise induced by atmospheric turbulence can be suppressed greatly.
Keywords :
atmospheric turbulence; optical communication; optical signal detection; phase estimation; quadrature phase shift keying; satellite communication; DQPSK modulation; M-th power scheme; atmospheric turbulence; coherent detection; differential quadrature phase-shift keying modulation; phase estimation; phase fluctuation; satellite-to-ground coherent optical communication system; Adaptive optics; Atmospheric modeling; Optical fiber communication; Optical modulation; Optical receivers; Optical transmitters; Phase estimation; DQPSK; atmospheric turbulence; coherent detection; satellite-to-ground optical communication;
Conference_Titel :
Communications and Networking in China (CHINACOM), 2010 5th International ICST Conference on
Conference_Location :
Beijing
Print_ISBN :
973-963-9799-97-4
