OFDM-based broadband underwater wireless optical communication system using a compact blue LED

OFDM-based broadband underwater wireless optical communication system using a compact blue LED
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使用紧凑型蓝色 LED 的基于 OFDM 的宽带水下无线光通信系统

DOI:
10.1016/j.optcom.2016.02.044
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发表时间:
2016-06
影响因子:
2.4
通讯作者:
Ning Deng
Ning Deng
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Xiangyu Yu;Fengzhong Qu;Jun Han;Ning Deng

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提出并实验验证了一种基于IM/DD-OFDM的水下无线光通信系统。我们研究了它的BER性能对训练符号数以及LED的偏置电压和驱动电压的依赖关系。通过使用单个紧凑型蓝光LED和低成本PIN光电二极管,在2 m空中信道上,使用16-QAM和32-QAM分别实现了225.90 Mb/s和231.95 Mb/s的净比特率,BER分别为1.54×10− 3和3.28×10− 3。在2米的水下信道,我们实现了161.36 Mb/s的净比特率使用16-QAM,156.31 Mb/s使用32-QAM,和127.07 Mb/s使用64-QAM,分别。相应的BER分别为2.5×10−3、7.42×10−4和3.17×10−3,均低于FEC阈值。
We propose and experimentally demonstrate an IM/DD-OFDM-based underwater wireless optical communication system. We investigate the dependence of its BER performance on the training symbol number as well as LED's bias voltage and driving voltage. With single compact blue LED and a low-cost PIN photodiode, we achieve net bit rates of 225.90 Mb/s at a BER of 1.54×10−3using 16-QAM and 231.95 Mb/s at a BER of 3.28×10−3using 32-QAM, respectively, over a 2-m air channel. Over a 2-m underwater channel, we achieve net bit rates of 161.36 Mb/s using 16-QAM, 156.31 Mb/s using 32-QAM, and 127.07 Mb/s using 64-QAM, respectively. The corresponding BERs are 2.5×10−3, 7.42×10−4, and 3.17×10−3, respectively, which are all below the FEC threshold.
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