中国激光, 2015, 42 (12): 1205003, 网络出版: 2015-11-30
无线光正交频分复用系统的实验研究
Experimental Study on Free Space Optical Orthogonal Frequency Division Multiplexing System
光通信 无线激光通信 正交频分复用 信道噪声 星座图 optical communications free space laser communication orthogonal frequency division multiplexing channel noise constellation
摘要
根据正交频分复用(OFDM)基本原理构建了无线光正交频分复用(FSO-OFDM)实验系统，仿真分析了信道噪声对FSO-OFDM 系统性能的影响。最后通过实验验证了信道噪声对信号星座图的影响，为FSO-OFDM 的应用提供了实验依据。实验表明FSO-OFDM 系统具有较好的抗码间串扰的性能，其误码率低于单载波调制系统。
Abstract
A reasonable free space optical orthogonal frequency division multiplexing (FSO-OFDM) experimental system model is set up according to the principle of orthogonal frequency division multiplexing (OFDM). The performance of this scheme is simulated under various channel conditions. And the impact of channel noise on OFDM modulation constellation is tested experimentally, which provides an experimental basis for FSO-OFDM. The result shows that FSO-OFDM system has better performance to restrain inter-symbol interference, and its error rate is lower than that of the single carrier modulation system.
柯熙政, 雷思琛, 李蓓蕾. 无线光正交频分复用系统的实验研究[J]. 中国激光, 2015, 42(12): 1205003. Ke Xizheng, Lei Sichen, Li Beilei. Experimental Study on Free Space Optical Orthogonal Frequency Division Multiplexing System[J]. Chinese Journal of Lasers, 2015, 42(12): 1205003.
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