首页|Demonstration of LDPC-coded PS-64QAM OFDM employing novel bit-class distribution matching in a W-band RoF system

Demonstration of LDPC-coded PS-64QAM OFDM employing novel bit-class distribution matching in a W-band RoF system

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In this work,we proposed and experimentally demonstrated a novel probabilistic shaping(PS)64-ary quadrature amplitude modulation(QAM)orthogonal frequency division multiplexing(OFDM)with low-density parity-check(LDPC)-coded modulation in a W-band radio-over-fiber(RoF)system using envelope detection.The proposed PS scheme has the advantages of no com-plex multiplication and division operations and low hardware implementation complexity.In our experiments,the two-stage bit weight distribution matching-based PS-64QAM OFDM signals with a rate of 28.13 Gb/s transmission over 4 m wireless+45-km standard single-mode fiber transmission can be achieved.The system performance is investigated under one LDPC code rate(3/4)and two PS parameter values(k=3 and 9).The experimental results show that the receiver power sensitivity and the system fiber nonlinear effect tolerance can be significantly improved compared with uniformly distributed OFDM signals.

probabilistic shapingtwo-stage bit weight distribution matchingorthogonal frequency division multiplexingW-bandradio-over-fiber system

赵海涛、徐邦宁、荀位、任建新、陈帅东、张龙、赵利、刘博

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School of Communication and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China

Institute of Optics and Electronics,Nanjing University of Information Science & Technology,Nanjing 210044,China

Key Laboratory for Information Science of Electromagnetic Waves(MoE),Fudan University,Shanghai 200433,China

Natural Science Research Startup Foundation of Recruiting Talents of Nanjing University of Posts and Telecommunications

NY223144

2024

10.3788/COL202422.080602

中国光学快报(英文版)
中国光学学会 中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD
影响因子：1.305
ISSN：1671-7694
年,卷(期)：2024.22(8)