Unlocking Potentials of MIMO Full-duplex Radios for Heterogeneous Networks (UPFRONT)

释放异构网络 MIMO 全双工无线电的潜力 (UPFRONT)

• 批准号: EP/N008219/1
• 负责人: Kai-Kit Wong
• 金额: $ 39.55万
• 依托单位: University College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FN008219%2F1
• 关键词: Unlocking; Potentials; MIMO; Full; duplex

This project will develop multi-antenna full-duplex technology to achieve highly efficient spectrum usage in HetNets (heterogeneous networks). Full-duplex radios are much more than just doubling the capacity as perceived in current literature. More explicitly speaking, we believe that it is making communication technologies impossible become possible. The implications of full-duplex communications are transformative. Full duplex, which permits simultaneous transmission and reception, motivates a fundamental rethinking of the ways wireless networks are designed and optimised.However, the fact that the power of the transmitting signal is so much larger (over 100 dB) than that of the receiving signal has fuelled the belief that it is impossible to separate them on a single channel. Recently, this picture has begun to change, following the pioneering work by Choi et al. from Stanford University who demonstrated a working full-duplex radio on a single channel.We envisage that full-duplexing can transform the operations of wireless networks and is expected to have massive benefits in HetNets. HetNets are widely regarded as one key wireless technology for the provision of future wireless communications (including 5G) by complex interoperation between macrocells and small cells. The enormous interest for HetNets is due to their capability of providing high regional capacities and flexible coverage, and more importantly their low infrastructure costs. In HetNets, a mosaic of wireless coverage is obtained by a variety of wireless coverage zones from macrocell to small cell such as, pico- and femtocell. Of increasing interest to mobile operators are the customers' installed femtocells that can greatly improve indoor coverage but share the same frequency band as the macrocells. There is a huge scope of research in resource allocation and physical-layer design and optimisation in HetNets. This project will exploit the full potential of MIMO full-duplexing in HetNets by designing a holistic solution that interconnects antenna design, physical-layer signal processing, and network resource allocation to address the inherent challenges of full-duplexing and realise its massive end-to-end benefits. To achieve this goal, UPFRONT first proposes new antenna design specially for wideband MIMO full-duplexing, which is substantially more challenging than the existing narrowband single-antenna case. Next we leverage the powerful MIMO signal processing to handle the overlooked in-tercell interference and new interference introduced by the full-duplex operation, which are critical to deliver the end-to-end benefits of full-duplex HetNets but were not well studied before. Furthermore, UPFRONT will explore the unexplored full-duplexing opportunities to address the networking-wide resource allocation challenges associated with the adoption of full-duplexing small cells under the greater macrocell structure sharing the same mobile spectrum. The outcomes of UPFRONT will elucidate the importance of a holistic approach to full-duplexing design and have impact in fundamental and practical research of future wireless networks.

该项目将开发多天线全双工技术，以实现HetNet（异构网络）中的高效频谱使用。全双工无线电远不止是目前文献中所认为的容量的两倍。更明确地说，我们认为它正在使通信技术的不可能成为可能。全双工通信的影响是变革性的。全双工允许同时发送和接收，这促使人们从根本上重新思考无线网络的设计和优化方式。然而，发送信号的功率比接收信号的功率大得多（超过100 dB）的事实助长了人们的信念，即不可能在单个信道上将它们分开。最近，这种情况已经开始改变，继Choi等人的开创性工作。来自斯坦福大学的Choi等人在一个信道上演示了一个工作的全双工无线电。我们设想，全双工可以改变无线网络的操作，预计将在HetNet中产生巨大的好处。HetNet被广泛认为是通过宏小区和小小区之间的复杂互操作来提供未来无线通信（包括5G）的一种关键无线技术。对HetNet的巨大兴趣是由于其提供高区域容量和灵活覆盖的能力，更重要的是其低基础设施成本。在HetNet中，通过从宏小区到诸如皮科小区和毫微微小区的小小区的各种无线覆盖区域来获得无线覆盖的马赛克。移动的运营商越来越感兴趣的是客户安装的毫微微小区，其可以极大地改善室内覆盖，但与宏小区共享相同的频带。在HetNet中，资源分配和物理层设计和优化方面有着巨大的研究范围。该项目将通过设计一个整体解决方案，将天线设计、物理层信号处理和网络资源分配互连起来，以解决MIMO全覆盖的固有挑战，并实现其巨大的端到端优势，从而充分利用MIMO全覆盖在HetNet中的全部潜力。为了实现这一目标，UPFRONT首先提出了专门用于宽带MIMO全频域的新天线设计，这比现有的窄带单天线情况更具挑战性。接下来，我们利用强大的MIMO信号处理来处理被忽视的小区间干扰和全双工操作引入的新干扰，这些干扰对于提供全双工HetNet的端到端优势至关重要，但以前没有得到很好的研究。此外，UPFRONT将探索尚未探索的全覆盖机会，以解决与在共享相同移动的频谱的更大宏小区结构下采用全覆盖小小区相关的网络范围资源分配挑战。UPFRONT的成果将阐明全面设计的整体方法的重要性，并对未来无线网络的基础和实践研究产生影响。

项目成果

Full-duplex radio with two receivers for self-interference cancellation

带两个接收器的全双工无线电，用于消除自干扰

• DOI: 10.1049/iet-map.2019.0539
• 发表时间: 2020
• 期刊: IET Microwaves, Antennas & Propagation
• 作者: Deo P

Physical layer security in full-duplex cellular networks

• DOI: 10.1109/pimrc.2017.8292465
• 发表时间: 2017-10
• 期刊: 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
• 作者: Ayda Babaei;H. Aghvami;Arman Shojaeifard;Kai‐Kit Wong

High isolation spiral antenna configurations for full-duplex communications

用于全双工通信的高隔离螺旋天线配置

• 发表时间: 2018
• 期刊: IET Conference Publications
• 作者: Deo P.

Full-Duplex Small-Cell Networks: A Physical-Layer Security Perspective

• DOI: 10.1109/tcomm.2018.2811495
• 发表时间: 2018-03
• 期刊: IEEE Transactions on Communications
• 影响因子: 8.3
• 作者: Ayda Babaei;A. Aghvami;Arman Shojaeifard;Kai‐Kit Wong

Decoupled UL/DL User Association in Wireless-Powered HetNets With Full-Duplex Small Cells

• DOI: 10.1109/tvt.2023.3282919
• 发表时间: 2023-11
• 期刊: IEEE Transactions on Vehicular Technology
• 影响因子: 6.8
• 作者: Sepideh Haghgoy;M. Mohammadi;Z. Mobini;Kai‐Kit Wong