面向超可靠低时延通信的有限块长MIMO传输理论与技术  

Finite blocklength MIMO transmission for URLLC: theory andtechnique

作　　者：沈弘[1] 朱鹏程[1,2] 刘平川 孙羿 李至诚 张睿 许威 尤肖虎[1,2] Hong SHEN;Pengcheng ZHU;Pingchuan LIU;Yi SUN;Zhicheng LI;Rui ZHANG;Wei XU;Xiaohu YOU(National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China;Purple Mountain Laboratories,Nanjing 211111,China)

机构地区：[1]东南大学移动通信国家重点实验室,南京210096 [2]紫金山实验室,南京211111

出　　处：《中国科学：信息科学》2024年第5期1055-1077,共23页Scientia Sinica(Informationis)

基　　金：国家重点研发计划(批准号:2021YFB2900300)资助项目。

摘　　要：超可靠低时延通信是5G及未来6G无线通信系统的重要组成部分.针对该类通信场景,如何从MIMO传输的角度实现时延和可靠性的最佳折中,是近年来备受关注的一项研究课题.由于现有基于长包假设的经典MIMO传输体系难以满足系统对于时延和可靠性的严苛要求,亟需研究更具挑战性的有限块长MIMO传输理论和技术.本文围绕有限块长MIMO信息论、发射机以及接收机设计的已有研究工作进行全面总结,并重点介绍二维空时信道编码以及MIMO一体化接收机等新型技术,为显著提升超可靠低时延通信的性能提供指导.另外,本文简要介绍了作者所在课题组搭建的MIMO超可靠低时延试验验证平台,为后续相关理论与算法的验证奠定试验基础.Ultra-reliable and low-latency communication(URLLC)is one important ingredient of the fifth generation(5G)and the sixth generation(6G)wireless communication systems.Concerning the URLLC scenario,how to achieve the best trade-off between the latency and the reliability from the perspective of MIMO transmission has received much attention recently.Since the stringent requirements on the latency and the reliability cannot be fulfilled by the classical MIMO transmission based on the infinite blocklength assumption,it is necessary to study the more challenging theory and technology of the finite blocklength MIMO transmission.This paper conducts a comprehensive survey of the finite blocklength MIMO information theory,transmitter and receiver designs,where the emerging technologies such as the 2D space-time channel coding and the integrated MIMO receiver are elaborated to provide guidance for the performance enhancement of URLLC.Furthermore,this paper introduces a MIMO URLLC platform built by the authors’research group,aiming at verifying relevant theory and algorithms.

关 键 词：超可靠低时延通信 有限块长 MIMO传输 二维空时信道编码 MIMO一体化接收机 

分 类 号：TN929.5[电子电信—通信与信息系统]