CIF Small: Massive MIMO in the MM-Wave Range: The Theory of Making it Practical

第五代蜂窝通信将严重依赖于在毫米波范围内提供大量带宽。为了提高频谱效率，并补偿毫米波段的大路径损耗，发射机和接收机都将使用大型天线阵列（大规模MIMO）。该项目旨在开发新技术，以降低通常与此类大型阵列相关的成本和能耗。解决这些问题将是5G向前迈出的重要一步，而5G将成为未来几年总统无线宽带革命愿景的基石。它将使消费者受益于更高的数据速率以较低的成本，网络运营商和设备制造商，以更好地利用他们的投资在毫米波technology.The重点这项工作是混合模拟/数字收发器结构，结合联合收割机模拟波束形成的基础上二阶信道统计（CSI）与数字波束形成的基础上瞬时CSI，一个结构，具有实用和根本的优势。该项目的重点是解决研究问题，而实际需求的启发，是通信理论和信号处理的新颖和深刻的挑战。该项目考虑涉及基站和用户设备处的混合收发器的设置，因此需要对矩阵进行优化，这些矩阵在不同的时间尺度上变化，具有不同的维度，并且通过不遵循方便但不切实际的简化的信道链接。常用的。另一个重要的实际动机的挑战是传播信道的属性的影响，这将通过新的测量和参数提取方法进行调查。

Fifth generation cellular communications will critically depend on making available large swaths of bandwidth in the mm-wave range. To enhance spectral efficiency, and compensate for the large pathloss of the mm-wave bands, large antenna arrays (massive MIMO) will be used at both the transmitter and receiver. This project aims to develop new techniques to reduce both the cost and energy consumption normally associated with such large arrays. Solving these problems will be an important step forward for 5G, which in turn will be a cornerstone of the presidential vision of a wireless broadband revolution in the coming years. It will allow consumers to benefit from higher data rates at lower costs, and network operators and equipment manufacturers to better leverage their investment in mm-wave technology.The focus of this work is on hybrid analog/digital transceiver structures that combine analogue beam forming based on second-order channel statistics (CSI) with digital beam forming based on instantaneous CSI, a structure that has both practical and fundamental advantages. The key point of the project is to tackle research questions that, while inspired by practical requirements, are novel and deep challenges in communication theory and signal processing. This project considers setups involving hybrid transceivers at both the base station and the user equipment, thus requiring optimization over matrices that change on different timescales, with different dimensions, and are linked over channels that do not follow the convenient, but unrealistic, simplifications commonly used. Another important practically motivated challenge is the impact of the properties of the propagation channel, which will be investigated through novel measurement and parameter extraction methods.