首页|Tunnel visible light communication system utilizing frequency domain pre-equalization technique
Tunnel visible light communication system utilizing frequency domain pre-equalization technique
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Simultaneously improving the communication speed and equalizing the nonlinear frequency response are still chal-lenging for tunnel visible light communication(TVLC)system.Here,we propose and numerically investigate a fre-quency domain pre-equalization scheme for discrete multitone(DMT)modulation TVLC system.The amplitude of each subscriber is appropriately pre-equalized by optimized nonlinear compensation parameters.Simulation results demonstrate that our proposed equalization technique can resist the channel attenuation of the signal high-frequency part and further flatten the nonlinear channel response.Without forward error correction technique,the bit error ratio(BER)performance can reach 7.66×10-6 in a 2.05 Gbit/s DMT-TVLC system.
WANG Dong、LI Chao、CHE Yue
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School of Information Science and Engineering,University of Jinan,Jinan 250022,China
Shandong Provincial Key Laboratory of Network-based Intelligent Computing,Jinan 250022,China
China Mobile Group Shandong Co.,Ltd.,Jinan 250101,China
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