Laser & Optoelectronics Progress, Volume. 56, Issue 21, 210603(2019)
Symmetry Recovery-Based ACO-OFDM Performance in LED Nonlinear Channel
A symmetry recovery-based receiver in an asymmetrically clipped optical orthogonal frequency division multiplexing (ACO-OFDM) system is proposed to achieve LED nonlinearity in visible light communication systems. Based on the symmetric recovery characteristics of ACO-OFDM, a spectral diversity that combines odd and even sub-channels can be achieved in the time domain. Theoretical and experimental results show that the proposed scheme has a good performance when it is applied to a highly nonlinear visible light communication system. Simulation results demonstrate that the proposed method outperforms conventional ACO-OFDM solutions. Furthermore, we find that the proposed method exhibits better performance when an increased modulation index leads to significant nonlinearity.
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Xiaoshuang Liu, Jianfeng Li, Jianke Li, Lihui Sun, Zhitong Huang, Hongjun Kang. Symmetry Recovery-Based ACO-OFDM Performance in LED Nonlinear Channel[J]. Laser & Optoelectronics Progress, 2019, 56(21): 210603
Category: Fiber Optics and Optical Communications
Received: Apr. 10, 2019
Accepted: May. 5, 2019
Published Online: Nov. 2, 2019
The Author Email: Li Jianfeng (lijianfeng555@126.com)