无线电通信技术2024，Vol.50Issue(6)：1118-1124,7.DOI:10.3969/j.issn.1003-3114.2024.06.008
高速移动场景的正交时频广义索引调制传输研究
Orthogonal Time-frequency Generalized Index Modulation in High-speed Mobile Scenarios
刘仪1
作者信息
- 1. 福建省电子信息(集团)有限责任公司,福建福州 350001
- 折叠
摘要
Abstract
To improve the spectral efficiency of communication systems,this paper proposes a modulation scheme combining Or-thogonal Time Frequency Space(OTFS)and Generalized Index Modulation(OTFS-GIM).Unlike traditional Orthogonal Time Frequen-cy Space and Index Modulation(OTFS-IM)scheme with fixed activation data points,the proposed scheme introduces an improved index modulation block,increases the selection process of activation data points,which can carry additional information for different numbers of activation data points,and achieves higher frequency efficiency.Meanwhile,this scheme improves the Information Transfer Detection(MPD)algorithm to detect the index information carried by activated data points and recover transmitted constellation infor-mation.Simulation results show that in high-speed mobile scenarios,the proposed OTFS-GIM in this paper outperforms traditional OTFS and OTFS-IM schemes in terms of spectral efficiency at the cost of small performance loss.关键词
频谱效率/正交时频空间与索引调制/正交时频空间与广义索引调制/信息传递检测/复杂度Key words
spectrum efficiency/OTFS-IM/OTFS-GIM/MPD/complexity分类
信息技术与安全科学引用本文复制引用
刘仪..高速移动场景的正交时频广义索引调制传输研究[J].无线电通信技术,2024,50(6):1118-1124,7.
