聊城大学学报（自然科学版）2018，Vol.31Issue(4)：7-12,26,7.DOI:10.19728/j.issn1672-6634.2018.04.002
基于非均匀量化ADC/DAC的IMDD-UMFC系统性能提升
IMDD-UMFCSystem Performance Improvement based on Non-uniform Quantization ADC/DAC
摘要
Abstract
In this paper, we proposes a new scheme for improving the error vector magnitude (EVM) and bit error rate (BER) performance in intensity modulated/direct detection (IM/DD) universal filtering multi-carrier (UMFC) systems.As for our scheme, a non-uniform quantization DAC is used for quantization error (SQNR).Through simulation, the feasibility of this scheme is verified in a 10-Gb/s, 16-OQAM modulated UMFC system (4-and 5-bit DACs with a fiber transmission distance of 20 km).Simulation results show that, compared with the uniform quantization method, our scheme can greatly improve the system performance.With the same system performance, the required bit-bit resolution based on the signal distribution quantization method is one bit less than the uniform quantization method.关键词
光UMFC/非均匀量化/SQNR/ADC/DACKey words
O-UMFC/Non-uniform quantization/SQNR/ADC/DAC分类
数理科学引用本文复制引用
俞嘉生,毕美华,卓先好,黄天成..基于非均匀量化ADC/DAC的IMDD-UMFC系统性能提升[J].聊城大学学报（自然科学版）,2018,31(4):7-12,26,7.基金项目
国家自然科学基金项目 (61431009, 61501157) （61431009, 61501157）
浙江省自然科学基金项目 (LQ16F050004) 资助 （LQ16F050004）
