Collaborative Research: SWIFT: Nonlinear and Inseparable Radar And Data (NIRAD) Transmission Framework for Pareto Efficient Spectrum Access in Future Wireless Networks

合作研究：SWIFT：未来无线网络中帕累托高效频谱接入的非线性不可分离雷达和数据 (NIRAD) 传输框架

• 批准号: 2128368
• 负责人: Zhu Han
• 金额: $ 25万
• 依托单位: University of Houston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-10-01 至 2024-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2128368&HistoricalAwards=false
• 关键词: Collaborative; Research; SWIFT; Nonlinear; Inseparable

Communications and radar are two major applications of electromagnetic waves, which convey information to a destination and glean information from the environment, respectively. Historically, the two technologies were developed and operated independently, thus using different frequency spectrum bands and different hardware. Facing a scarcity of wireless spectrum resources due to the explosive growth in wireless applications, the integration of communications and radar enables sharing of spectrum and hardware, thus substantially reducing the cost and resource demands. Meanwhile, due to the lower amount of electromagnetic emissions, interference to other wireless services will also be substantially reduced. When bandwidth is saved due to the integration of communications and radar sensing, more bandwidth can be committed to each transceiver, thus achieving higher data transmission rates and finer sensing precision, or allowing more wireless devices to be able to access the spectrum. These advantages are of considerable value for applications such as Internet of Things (IoT) and cyber physical systems (CPSs), such as unmanned aerial vehicles (UAVs) and aerial access networks (AANs). The project also will fulfill an education role, including K-12 outreach, and undergraduate/graduate level course design. The findings of the proposed research will disseminated to academic and industrial communities.This study devises a nonlinear and inseparable radar and data (NIRAD) transmission scheme, in which the functions of communications and radar sensing are integrated in the same waveform and use the same hardware. In contrast to linearly superimposed communications and radar sensing, the NIRAD scheme integrates both functions in an inseparable manner, thus allow each to fully exploit the resources of the other. When a waveform is transmitted, the electromagnetic wave brings information to the communication receiver; upon reflections, the wave brings back information for radar sensing, thus achieving both functions in the same round of transmission. When the different functions of communications and radar sensing are integrated in the same waveform and hardware, they have conflicting interests, due to their different purposes. This project discloses the trade-off between communications and radar sensing and characterizes it in an economics framework. The NIRAD technique is applicable to various practical systems, such as high-definition maps in autonomous driving, space-terrestrial communications, and reconfigurable intelligent surfaces, by improving the efficiencies of bandwidth, power and hardware. The proposed algorithms and protocols will be tested using software simulations and field experiments based on a 5G testbed.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

通信和雷达是电磁波的两个主要应用，它们分别将信息传递到目的地和从环境中收集信息。从历史上看，这两种技术是独立开发和运行的，因此使用不同的频谱带和不同的硬件。面对无线应用爆炸式增长导致的无线频谱资源紧缺，通信与雷达的融合实现了频谱和硬件的共享，从而大幅降低了成本和资源需求。同时，由于电磁辐射量较低，对其他无线服务的干扰亦会大幅减少。当由于通信和雷达感测的集成而节省带宽时，可以将更多的带宽分配给每个收发器，从而实现更高的数据传输速率和更精细的感测精度，或者允许更多的无线设备能够访问频谱。这些优势对于诸如物联网（IoT）和网络物理系统（CPS）（诸如无人机（UAV）和空中接入网络（AAN））的应用具有相当大的价值。该项目还将发挥教育作用，包括K-12推广和本科/研究生课程设计。本研究设计了一种非线性和不可分离的雷达和数据传输方案（NIRAD），其中通信和雷达传感功能集成在同一波形中并使用同一硬件。与线性叠加的通信和雷达感测相比，NIRAD方案以不可分割的方式集成了这两种功能，从而允许每种功能充分利用另一种功能的资源。当波形被发射时，电磁波将信息带到通信接收器;当反射时，波将信息带回雷达感测，从而在同一轮传输中实现两种功能。当通信和雷达传感的不同功能集成在同一波形和硬件中时，由于它们的目的不同，它们具有冲突的利益。该项目揭示了通信和雷达感测之间的权衡，并在经济学框架中对其进行了表征。NIRAD技术通过提高带宽、功率和硬件的效率，适用于各种实际系统，例如自动驾驶中的高清地图、空间-地面通信和可重构智能表面。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

A Precoding Approach for Dual-Functional Radar-Communication System With One-Bit DACs

一种用于具有一位 DAC 的双功能雷达通信系统的预编码方法

• DOI: 10.1109/jsac.2022.3155532
• 发表时间: 2022
• 期刊: IEEE Journal on Selected Areas in Communications
• 影响因子: 16.4
• 作者: Yu, Xiaoyou;Yang, Qi;Xiao, Zhu;Chen, Hongyang;Havyarimana, Vincent;Han, Zhu
• 通讯作者: Han, Zhu

Holographic Integrated Sensing and Communication

• DOI: 10.1109/jsac.2022.3155548
• 发表时间: 2022-07
• 期刊: IEEE Journal on Selected Areas in Communications
• 影响因子: 16.4
• 作者: Haobo Zhang;Hongliang Zhang;Boya Di;M. D. Renzo;Zhu Han;H. Poor;Lingyang Song

Toward Ubiquitous Sensing and Localization With Reconfigurable Intelligent Surfaces

• DOI: 10.1109/jproc.2022.3169771
• 发表时间: 2022-09
• 期刊: Proceedings of the IEEE
• 影响因子: 20.6
• 作者: Hongliang Zhang;Boya Di;Kaigui Bian;Zhu Han;H. Poor;Lingyang Song