Performance analyses of subcarrier BPSK modulation over M turbulence channels with pointing errors  

作　　者：马爽 李亚添 吴佳彬 耿天文 吴志勇 

机构地区：[1]University of Chinese Academy of Sciences, Beijing 100049, China [2]Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Jilin 130033, China

出　　处：《Optoelectronics Letters》2016年第3期221-225,共5页光电子快报（英文版）

摘　　要：An aggregated channel model is achieved by fitting the Weibull distribution, which includes the effects of atmospheric attenuation, M distributed atmospheric turbulence and nonzero boresight pointing errors. With this approximate channel model, the bit error rate （BER） and the ergodic capacity of free-space optical （FSO） communication systems utilizing sub- cartier binary phase-shift keying （BPSK） modulation are analyzed, respectively. A closed-form expression of BER is de- rived by using the generalized Gauss-Lagueree quadrature rule, and the bounds of ergodic capacity are discussed. Monte Carlo simulation is provided to confirm the validity of the BER expressions and the bounds of ergodic capacity.

关 键 词：BPSK调制 信道模型 指向误差 大气湍流 性能分析 副载波 自由空间光通信 蒙特卡罗模拟 

分 类 号：TN761[电子电信—电路与系统]