面向6G uRLLC的序号调制高可靠性传输技术研究  

Reliable Communication Based on Index Modulation for 6G uRLLC

作　　者：呼增 闫鹏 田丰[3] 韩晓冰[3] HU Zeng;YAN Peng;TIAN Feng;HAN Xiaobing(College of Information Science and Technology,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China;.2 Fourth Research institute of Telecommunications Technology Co.,Ltd.,Xi'an 710061,China;College of Communication&Information Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)

机构地区：[1]仲恺农业工程学院信息科学与技术学院,广东广州510225 [2]电信科学技术第四研究所有限公司,陕西西安710061 [3]西安科技大学通信与信息工程学院,陕西西安710054

出　　处：《无线通信技术》2023年第1期44-48,共5页Wireless Communication Technology

基　　金：国家自然科学基金项目(62071504);广州市科技项目(202002030092);陕西省科技计划项目(2020GY-029)。

摘　　要：下一代移动通信网络将有效覆盖各类智能设备、工业物联网及车联网等应用,对不同应用中信息传输的可靠性、安全性及传输时延提出了更高的要求。本文提出一种基于载波序号调制(Orthogonal frequency division multiplexing with index modulation,OFDM-IM)的多分集传输方案,可有效提升高可靠低时延通信(ultra Reliable and Low Latency Communication,uRLLC)场景中信息传输的可靠性及系统调制解调的计算复杂度。为了降低接收端的计算复杂度,本文提出一种用于多分集OFDM-IM系统的基于单个子载波计算的接收机算法,通过将基于子块计算过程分解为两步计算的方式来降低解调过程的计算复杂度。计算机仿真结果证明了本文提出的多分集OFDM-IM可以获得比传统单个符号多次重发方式获得发送分集增益更优的误比特性能。The next generation wireless communication system will supports all kinds of smart devices,industrial Internet of things,Internet of vehicles and other applications effectively,which puts forward higher requirements for the reliability,security and delay of information transmission.In this paper,we propose a novel multi diversity transmission scheme based on orthogonal frequency division multiplexing with index modulation(OFDM-IM),which can effectively improve the reliability in the information transmission.To reduce the computational complexity of the receiver,a low complexity subcarrier-wise detection algorithm,which is performed in two steps,is proposed to applications in ultra reliable and low delay communication(uRLLC)scenario.The simulation and numerical results have demonstrated that the proposed scheme can achieve better error performance compared with the traditional algorithm with single symbol multiple retransmission based on OFDM.

关 键 词：6G 高可靠低时延通信 正交频分复用 序号调制 

分 类 号：TN925[电子电信—通信与信息系统]