B5G-Cell: Adaptive Millimeter-wave Networking in Beyond-5G Cellular Systems (T01#)

B5G-Cell：超 5G 蜂窝系统中的自适应毫米波网络 (T01

• 批准号: 429220728
• 金额: --
• 依托单位: Fachgebiet Sichere Mobile Netze
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres (Transfer Project)
• 财政年份: 2020
• 资助国家: 德国
• 起止时间: 2019-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/429220728?language=en
• 关键词: B5G; Cell; Adaptive; Millimeter; wave

B5G-Cell transfer project addresses key issues in millimeter-wave communication with the cooperation of NEC Laboratories Europe. The feasibility of communication in millimeter-wave bands has been the focus of extensive research in academia and industry. Initial studies show that Gigabit-per-second throughput is achievable in static point-to-point scenarios. To cope with the high propagation loss in millimeter-wave bands, millimeter-wave communication systems use highly directional beamforming techniques. Such a high level of directionality implicates three main procedures in millimeter-wave cellular networks, namely, beam alignment, scheduling, and mobility management. Firstly, beam alignment is required so that users and base stations can establish a connection. Once connected, the base station should schedule the users. The high directionality has the advantage of enabling spatial frequency reuse since the interference area is limited to the coverage area of the beam. However, this location-dependency significantly adds to the complexity of scheduling. Last but not least, maintaining the beam alignment for mobile users is very challenging and demands accurate mobility tracking/prediction. It is extremely challenging to design practical mechanisms that facilitate fast beam alignment, low-complexity scheduling, and effective mobility support. To make such a complex system functional, we often require a multi-mechanism design which can proactively transition to the most suitable mechanism with reference to the network conditions. MAKI not only developed several optimal mechanisms for the challenges above, but also has the required expertise for handling multi-mechanism systems with the ability of proactive transitions.

B5 G-Cell转移项目与NEC欧洲实验室合作解决毫米波通信的关键问题。毫米波段通信的可行性一直是学术界和工业界广泛研究的焦点。初步研究表明，在静态点对点场景中，每秒吞吐量可以达到1000比特。为了科普毫米波段中的高传播损耗，毫米波通信系统使用高度定向的波束形成技术。这种高水平的方向性涉及毫米波蜂窝网络中的三个主要过程，即波束对准、调度和移动性管理。首先，需要波束对准，使得用户和基站可以建立连接。一旦连接，基站应该调度用户。高方向性具有使得能够实现空间频率重用的优点，因为干扰区域被限制到波束的覆盖区域。然而，这种位置依赖性显著增加了调度的复杂性。最后但并非最不重要的是，保持移动的用户的波束对准是非常具有挑战性的，并且需要精确的移动性跟踪/预测。设计促进快速波束对准、低复杂度调度和有效移动性支持的实用机制是极具挑战性的。为了使这样一个复杂的系统功能，我们往往需要一个多机制的设计，可以主动过渡到最合适的机制，参考网络条件。MAKI不仅为上述挑战开发了几种最佳机制，而且还拥有处理具有主动过渡能力的多机制系统所需的专业知识。