论文标题
FDD系统中高容量毫米波回程的视线MIMO
Line-of-Sight MIMO for High Capacity Millimeter Wave Backhaul in FDD Systems
论文作者
论文摘要
无线回程被认为是未来无线网络的关键部分，该网络具有密集的小单元流量和高容量需求。在本文中，我们专注于使用双极化频分化双工（FDD）的高光谱效率线（LOS）多输入多输出（MIMO）系统。由于各种物理障碍，例如相位噪声（PHN），计时偏移（TO）以及LOS MIMO的状况较差，因此对于系统而言，高光谱效率非常具有挑战性。在本文中，我们提出了一个整体解决方案，该解决方案包含补偿，PHN估计，预编码器/去往复机的LOS MIMO进行无线次要回程的优化以及每个部分的相互作用。我们表明，所提出的解决方案具有强大的性能，端到端的光谱效率为8x8 MIMO的60位/s/hz。
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 (mmWave) 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 robust performance with end-to-end spectral efficiency of 60 bits/s/Hz for 8x8 MIMO.
