移动通信2025，Vol.49Issue(5)：34-38,5.DOI:10.3969/j.issn.1006-1010.20250321-0001
基于实复混合调制的多用户传输方案设计
Multi-User Transmission with Real-Complex Hybrid Modulation
摘要
Abstract
With the rapid development of the industrial internet,massive connectivity of industrial devices has emerged,making large-scale uplink access based on multi-user multiple-input multiple-output(MU-MIMO)systems a major challenge in signal processing.A multi-user transmission scheme based on real-complex hybrid modulation,combined with widely linear receiver design,offers a promising solution to enhance system user capacity.This paper first outlines the MU-MIMO transmission scheme employing real-complex hybrid modulation and adopts an expectation propagation(EP)-based detection algorithm at the receiver.To address the challenges in high-density user scenarios,the algorithm is further optimized through parameter configuration and message passing rules,leading to an improved EP-based detector tailored for hybrid modulation.Simulation results demonstrate that the proposed scheme significantly improves transmission reliability in multi-user scenarios.关键词
工业网络/多用户接入/混合调制/多入多出/期望传播算法Key words
industrial networks/multi-user access/hybrid modulation/multiple-input multiple-output(MIMO)/expectation propagation algorithm分类
电子信息工程引用本文复制引用
张争珍,蔡悦凯..基于实复混合调制的多用户传输方案设计[J].移动通信,2025,49(5):34-38,5.基金项目
国家自然科学基金集成项目"基于开放自动化架构的制造流程柔性构造理论方法与集成演示验证"(9246730007) （9246730007）
国家自然科学基金面上项目"面向未来无线通信的高性能极化编码理论与方法"(62471054) （62471054）
