Asynchronous Massive MIMO Base Station Cooperation for 5 G Networks and Beyond

5G 及更高网络的异步大规模 MIMO 基站协作

• 批准号: 538310-2018
• 负责人: Shahbazpanahi, Shahram
• 金额: $ 1.86万
• 依托单位: University of Ontario Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=681326
• 关键词: Asynchronous; Massive; MIMO; Base; Station

Titled as "Asynchronous Massive MIMO Base Station Cooperation for 5 G Networks and Beyond", this research proposal aims to study distributed cooperation schemes among base-stations, which are equipped with a large number of antennas (i.e., to support massive MIMO), to enable simultaneous communications between multiple user pairs (multiple peer-to-peer communications). Such a multi-user scenario has not been studied in the literature, despite its practical importance. The practical importance of such scenarios is further highlighted if one takes into account that the multiple users operate in a time-asynchronous manner induced by the difference in the physical locations of the users. Indeed, in this study, the network is assumed to be time-asynchronous, meaning that the signal transmitted by one user undergoes different delays to reach the base stations in the network. Furthermore, the signals transmitted by different base stations undergo different delays to a particular user. Due to this realistic model for the user links, the end-to-end user channels can be modeled only as multi-tap frequency selective links thereby requiring wideband consideration, design, and analysis of the network, while the available literature focuses on narrowband (single-carrier) schemes.

本研究计划名为“面向5g及以后网络的异步大规模MIMO基站合作”，旨在研究配备大量天线（即支持大规模MIMO）的基站之间的分布式合作方案，以实现多用户对之间的同时通信（多个点对点通信）。尽管这种多用户场景具有实际重要性，但在文献中尚未研究过。如果考虑到多个用户以由用户物理位置差异引起的时间异步方式操作，则进一步突出了这种场景的实际重要性。实际上，在本研究中，我们假设网络是时间异步的，这意味着一个用户传输的信号到达网络中的基站需要经历不同的延迟。此外，不同基站传输的信号对特定用户的延迟也不同。由于这种用户链路的现实模型，端到端用户信道只能建模为多分频选择链路，因此需要对网络进行宽带考虑、设计和分析，而现有文献则侧重于窄带（单载波）方案。