电讯技术2025，Vol.65Issue(2)：199-204,6.DOI:10.20079/j.issn.1001-893x.240912001
低精度量化的OTFS系统性能分析
Performance Analysis of OTFS System with Low-resolution Quantization
摘要
Abstract
Orthogonal time frequency space(OTFS)is a candidate modulation scheme for the sixth generation mobile communication(6G)to support heterogeneous requirements of next wireless communication systems in high-mobility scenarios.Considering the problems of high hardware cost and power consumption,the authors construct a low-resolution quantized OTFS system and derive a minimum mean square error(MMSE)detection matrix based on b-bit quantization.The input-output relationship of the system is derived using the additive quantization noise model(AQNM),and the bit error rate(BER)and achievable rate performance are evaluated using the MMSE receiver.Numerical results show that 4-bit quantization loses about 1 dB of performance at BER=10-2 and decreases the achievable rate by around 0.98%compared with full-resolution quantization;8-bit quantization achieves achievable rate comparable to full-precision quantization,confirming the validity of the analytical results.关键词
正交时频空(OTFS)/低精度量化/快速时变信道Key words
orthogonal time frequency space(OTFS)/low-resolution quantization/fast time-varying channel分类
电子信息工程引用本文复制引用
张馨月,李华,李星..低精度量化的OTFS系统性能分析[J].电讯技术,2025,65(2):199-204,6.基金项目
中国博士后科学基金项目第74批面上资助项目(2023M740223) （2023M740223）
2023年度国家资助博士后研究人员计划(GZC20230241) （GZC20230241）
