典型文献
Jitter Enhanced Full Digital RF Transmitter and PWM RFPA for 5G Broadband Communications
文献摘要：
RFPA(radio frequency power amplifier)based on PWM(pulse width modulation)can be per-fect linear without using complicated DPD(digital pre-distortion)hardware.However,PWM RFPA need ultra-high PWM time resolution(less than 10 ps)for wide-band 5G,which is limited by CMOS technolo-gies(can reach 40 ps).It limits the complexity of modulation so that PWM RFPA cannot be really com-mercialized so far in wideband radio/mobile technolo-gies.This paper presents our contribution by intro-ducing jitter into PWM.For the first time,we demon-strate that jitter can improve the PWM time resolution equivalently reaching less than 2.6 ps.Hence PWM RFPA can be used in 5G supporting 256QAM OFDM modulation based on currently available digital CMOS technologies.We demonstrate that jitter can refine the inherent resolution of PWM hardware circuit modu-lation.The jitter makes the MCS(modulation and coding scheme)of the bandwidth OFDM system im-proved from 16QAM to 256QAM in the band n28 of 3GPP 38.101.We also verified that 5G 256QAM OFDM modulation is achievable in the 3GPP band n20,Softbank band28 and NTT Docomo band28.The RMS EVM(root mean square error vector magnitude)of 256QAM OFDM modulation is about-44 dB.
文献关键词：
中图分类号：
作者姓名：
Linxin Yin;Dake Liu;Yong Bai
作者机构：
The State Key Laboratory of Marine Resources Utilization in South China Sea,Hainan University,Haikou 570228,China;School of Information and Communication Engineering,Hainan University,Haikou 570228,China
文献出处：
引用格式：
[1]Linxin Yin;Dake Liu;Yong Bai-.Jitter Enhanced Full Digital RF Transmitter and PWM RFPA for 5G Broadband Communications)[J].中国通信（英文版）,2022(05):69-86
A类：
mercialized,n28,n20,Softbank,band28,Docomo
B类：
Jitter,Enhanced,Full,Digital,Transmitter,PWM,RFPA,Broadband,Communications,radio,frequency,power,amplifier,pulse,modulation,be,fect,linear,without,using,complicated,DPD,digital,distortion,hardware,However,need,ultra,high,resolution,less,than,ps,which,limited,by,CMOS,It,limits,complexity,that,cannot,really,far,wideband,mobile,This,paper,presents,our,contribution,intro,ducing,jitter,into,For,first,improve,equivalently,reaching,Hence,used,supporting,256QAM,OFDM,currently,available,technologies,We,demonstrate,refine,inherent,circuit,makes,MCS,coding,scheme,bandwidth,system,proved,from,16QAM,3GPP,also,verified,achievable,NTT,RMS,EVM,root,mean,square,error,vector,magnitude,about,dB
AB值：
0.478587
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