Line-of-Sight MIMO for High Capacity Millimeter Wave Backhaul in FDD Systems  

作　　者：Ye Xue Xuanyu Zheng Vincent K.N.Lau 

机构地区：[1]Hong Kong University of Science and Technology,Hong Kong 999077,China

出　　处：《Journal of Communications and Information Networks》2020年第2期177-193,共17页通信与信息网络学报（英文）

摘　　要：Wireless backhaul is considered to be the key part of the future wireless network with dense small cell traffic and high capacity demand.In this paper,we focus on the design of a high spectral efficiency line-of-sight(LoS)multiple-input multiple-output(MIMO)system for millimeter wave backhaul using dual-polarized frequency division duplex(FDD).High spectral efficiency is very challenging to achieve for the system due to various physical impairments such as phase noise(PHN),timing offset(TO)as well as the poor condition number of the LoS MIMO.In this paper,we propose a holistic solution containing TO compensation,PHN estimation,precoder/decorrelator optimization of the LoS MIMO for wireless backhaul,and the interleaving of each part.We show that the proposed solution has a robust performance with end-to-end spectral efficiency of 60 bit/s/Hz for 88 MIMO.

关 键 词：line-of-sight MIMO wireless backhaul FDD timing synchronization phase noise 

分 类 号：TN92[电子电信—通信与信息系统]