典型文献
Signal Clipping at Transmitter and Receiver of O-OFDM for VLC under Optical Power Constraint
文献摘要：
Visible light communications(VLC)is considered as an effective supplement technology for next-generation(6G)communications due to its abun-dant spectrum,high power efficiency and easy deploy-ment.Optical orthogonal frequency division multi-plexing(O-OFDM)is a common technology to ob-tain further promotion.In this paper,two typical O-OFDM schemes direct current biased O-OFDM(DCO-OFDM)and asymmetrically clipped O-OFDM(ACO-OFDM)are analyzed in terms of signal clip-ping at both transmitter and receiver under the con-straints of maximum optical power and non-negative optical power.And effective electrical SNR models after signal clipping are proposed and verified by link simulation.Then a noise cancellation scheme is pro-posed based on received signal clipping and is proved to bring a significant gain for ACO-OFDM.By system simulation,we find that under a certain optical power limitation,most users can achieve above 4Gbps in in-door scenario when modulation bandwidth of the light emit diode(LED)or laser diode(LD)is 1GHz.There-fore,it can be expected that the throughput could reach tens Gbps when the LED/LD modulation bandwidth is increased and multiple LEDs/LDs are deployed.
文献关键词：
中图分类号：
作者姓名：
Liang Xia;Xiaoqian Wang;Zhiwen Sun;Zhitian Cheng;Jing Jin;Yifei Yuan;Guangyi Liu;Tao Jiang;Yuhong Huang
作者机构：
Future Mobile Technology Lab,China Mobile Research Institute,Beijing 100053,China
文献出处：
引用格式：
[1]Liang Xia;Xiaoqian Wang;Zhiwen Sun;Zhitian Cheng;Jing Jin;Yifei Yuan;Guangyi Liu;Tao Jiang;Yuhong Huang-.Signal Clipping at Transmitter and Receiver of O-OFDM for VLC under Optical Power Constraint)[J].中国通信（英文版）,2022(06):154-168
A类：
4Gbps
B类：
Signal,Clipping,Transmitter,Receiver,OFDM,VLC,under,Optical,Power,Constraint,Visible,light,communications,considered,effective,supplement,technology,next,generation,6G,due,its,abun,dant,spectrum,high,power,efficiency,easy,orthogonal,frequency,division,plexing,common,ob,further,promotion,In,this,paper,two,typical,schemes,direct,current,biased,DCO,asymmetrically,clipped,ACO,are,analyzed,terms,signal,both,transmitter,receiver,straints,maximum,optical,negative,And,electrical,SNR,models,after,clipping,proposed,verified,by,link,simulation,Then,noise,cancellation,received,proved,bring,significant,gain,By,system,find,that,certain,limitation,most,users,achieve,above,door,scenario,when,modulation,bandwidth,emit,diode,laser,1GHz,There,fore,be,expected,throughput,could,reach,tens,increased,multiple,LEDs,LDs,deployed
AB值：
0.617115
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