通信学报2025，Vol.46Issue(1)：23-34,12.DOI:10.11959/j.issn.1000-436x.2025001
多模式选择的OFDM索引调制传输方案
Multi-mode selective OFDM index modulation transmission scheme
摘要
Abstract
In order to solve the problem that index information was limited by the number of subcarrier activation pat-terns and single signal constellation mode in orthogonal frequency division multiplexing with index modulation(OFDM-IM),a multi-mode selective OFDM index modulation transmission scheme was proposed.The proposed scheme achieved better bit error rate performance by designing distinguishable signal constellations so that the Euclidean dis-tances between adjacent constellation points within and between pattern groups were equal.In addition,the spectral effi-ciency of the system was improved by introducing full subcarrier activation patterns into the index information of multi-mode selective index modulation.Meanwhile,due to the subcarrier activation mode of the proposed scheme matching bi-nary digits,the system could adopt a low complexity log likelihood ratio detection algorithm and maintained good bit er-ror rate performance.Theoretical analysis and simulation results show that the proposed scheme effectively improves spectral efficiency and maintains good bit error rate performance compared with OFDM-IM,OFDM-SSIM and MMS-OFDM-IM transmission schemes in additive Gaussian white noise channel and Rayleigh fading channel.关键词
多模式选择/索引调制/正交频分复用/频谱效率/误码率Key words
multi-mode selective/index modulation/orthogonal frequency division multiplexing/spectral efficiency/bit error ratio分类
电子信息工程引用本文复制引用
郭漪,朱煜晨,王翊卿,刘刚,付少忠..多模式选择的OFDM索引调制传输方案[J].通信学报,2025,46(1):23-34,12.基金项目
陕西省自然科学基础研究计划基金资助项目(No.2024JC-YBMS-533) （No.2024JC-YBMS-533）
国家自然科学基金资助项目(No.62171354)The Natural Science Basic Research Program of Shaanxi Province(No.2024JC-YBMS-533),The National Natu-ral Science Foundation of China(No.62171354) （No.62171354）
