Large-Scale MIMO in C-RAN

为了满足未来十年对宽带无线服务快速增长的需求，国际**标准机构为第五代(5G)无线系统制定了令人印象深刻的目标清单。**在首字母缩写IMT-2020下，这些目标要求将数据速率、单位面积的用户容量和**服务质量(Qos)提高数倍，从而实现无缝连接，将人和对象聚集在一个智能**联网的城市中。为了满足这些要求，通信模型堆栈的所有级别都需要显著的技术进步，尤其是在物理层。在此背景下，我们提出了一个**尖端研究计划，将在未来三年内进行，旨在为5G挑战的关键子集提供可行的**工程解决方案。具体地说，我们将寻求开发和研究**改进的传输和信号处理方案，用于在云无线电接入网络(C-RAN)下运行的大规模多输入多输出(MIMO)**系统。本研究主要从两个方面展开：(1)大规模MIMO的混合预编译码设计；(2)C-RAN下的MASSIC**MIMO运算。将在复杂性、带宽和能效方面寻求改进，**而性能将在代表5G网络的运营条件下进行表征。这项**拟议的研究计划得到了我们的行业赞助商InterDigital Canada的大力支持，并与公司工程师一起**仔细地制定了该计划。根据我们目前的协议，InterDigital将有机会**获得我们团队开发的新技术，并有机会招聘根据**该项目培训的顶级HQP。反过来，来自公司的批判性反馈将帮助我们保持竞争优势，并**在更具挑战性的道路上推进我们的研究。拟议的研究旨在帮助InterDigital**在C-RAN内开发大规模MIMO领域的知识产权，预计这将成为5G的关键使能**技术。因此，我们的合作工作将为加拿大创造新的机会，帮助我们的国家**保持其作为全球信息部门领导者的地位。

To meet the rapidly increasing demand for broadband wireless services over the next decade, international**standard bodies have set forth an impressive list of goals for the fifth generation (5G) of wireless systems.**Under the acronym IMT-2020, these call for multi-fold increase in data rate, user capacity per unit area, and**Quality of Service (QoS), allowing seamless connections that will bring together people and objects in a smart**networked city. To fulfill these requirements, significant technological advances are needed at all levels of the**communication model stack, but especially at the physical layer. Within this context, we propose a**cutting-edge program of research, to take place over the next three years and aimed at providing viable**engineering solutions to a critical subset of 5G challenges. Specifically, we will seek to develop and investigate**improved transmission and signal processing schemes for large-scale Multiple-Input Multiple-Output (MIMO)**systems operating under a Cloud Radio Access Network (C-RAN). The proposed research is articulated along**two main avenues: (1) Hybrid precoding/decoding design for large-scale MIMO; (2) Operation of massive**MIMO under C-RAN. Improvements will be sought in terms of complexity, bandwidth and power efficiency,**while performance will be characterized under conditions of operation representative of 5G networks. This**proposed research program is strongly supported by our industrial sponsor, InterDigital Canada, and has been**carefully crafted with company engineers. Under our current agreement, InterDigital will have primary access**to the new technologies developed by our team, as well as the opportunity to recruit top HQPs trained under**this project. In turns, critical feedbacks from the company will help us maintain a competitive edge and**advance our research along more challenging avenues. The proposed research is intended to help InterDigital**develop intellectual property in the area large-scale MIMO within C-RAN, foreseen as a key enabling**technology for 5G. Our collaborative work will thus create new opportunities for Canada, helping our country**to maintain its position as a global leader in the information sector.