Chinese Optics Letters, 2018, 16 (12): 120101, Published Online: Dec. 7, 2018
Average BER of coherent optical QPSK systems with phase errors over M turbulence channels Download: 684次
Abstract
The average bit-error-rate (BER) performance is studied for a coherent free-space optical communication system employing differentially encoded quadrature phase-shift keying (QPSK) with the M th-power phase estimation method. A closed-form expression, considering the combined effects of the Málaga (M) turbulence fading, pointing errors, and phase estimation errors, is derived in terms of Meijer’s G function. Numerical and Monte Carlo simulation results are presented to verify the derived expression.
Jiashun Hu, Zaichen Zhang, Liang Wu, Jian Dang, Guanghao Zhu. Average BER of coherent optical QPSK systems with phase errors over M turbulence channels[J]. Chinese Optics Letters, 2018, 16(12): 120101.