典型文献
Geometrically Shaped 32QAM and Modified Binary Switching Coding Method in Underwater Visible Light Communication
文献摘要：
Visible light communication(VLC)has emerged as a promising communication method in 6G,particularly in the domain of underwater communication.However,because of its intimate coupling to the light-emitting diodes(LED),the transmission rate is limited by the modulation bandwidth and the nonlinearity of the LED.With current device development,LED bandwidth is substantially lower than that of other optical commu-nication devices,necessitating improved spectral effi-ciency and nonlinearity robustness to achieve high-speed transmission.In this paper,we propose a hexagonal con-stellation-based geometrically shaped(GS)32QAM with carrierless amplitude and phase(CAP)modulation for the underwater VLC system.A comprehensive performance comparison of four GS modulation methods,including our proposed hexagonal-32QAM,normal 32QAM,square-32QAM and 32APSK is investigated in both theory and experiment.The hexagonal-32QAM with a modified bin-ary switching coding(BSC)can obtain a Q factor gain of 0.44 dB,and a data rate improvement of 25 Mb/s com-pared with Gary coding based normal 32QAM.The ex-perimentally results illustrate the feasibility of geometric shaping 32QAM in underwater visible light communica-tion.
文献关键词：
中图分类号：
作者姓名：
SHI Jianyang;CAI Jifan;QIN Guojin;JIN Ruizhe;LIN Xianhao;CHI Nan
作者机构：
Key Laboratory for Information Science of Electromagnetic Waves(MoE),Fudan University,Shanghai 200433,China;Peng Cheng Laboratory,Shenzhen 518055,China;Shanghai Engineering Research Center of Low-Earth-Orbit Satellite Communication and Applications,Shanghai 200433,China;Shanghai Collaborative Innovation Center of Low-Earth-Orbit Satellite Communication Technology,Shanghai 200433,China
文献出处：
引用格式：
[1]SHI Jianyang;CAI Jifan;QIN Guojin;JIN Ruizhe;LIN Xianhao;CHI Nan-.Geometrically Shaped 32QAM and Modified Binary Switching Coding Method in Underwater Visible Light Communication)[J].电子学报（英文）,2022(06):1106-1111
A类：
stellation,carrierless,32APSK,Gary
B类：
Geometrically,Shaped,32QAM,Modified,Binary,Switching,Coding,Method,Underwater,Visible,Light,Communication,light,communication,VLC,emerged,promising,6G,particularly,domain,underwater,However,because,its,intimate,coupling,emitting,diodes,LED,transmission,limited,by,modulation,bandwidth,nonlinearity,With,current,development,substantially,lower,than,that,other,optical,devices,necessitating,improved,spectral,effi,ciency,robustness,achieve,high,speed,In,this,paper,hexagonal,con,geometrically,shaped,GS,amplitude,phase,CAP,system,comprehensive,performance,comparison,four,methods,including,proposed,normal,square,investigated,both,theory,experiment,modified,bin,switching,coding,BSC,can,obtain,gain,dB,data,improvement,Mb,pared,perimentally,results,illustrate,feasibility,shaping,visible
AB值：
0.562168
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