Enabling Wireless Communications in the Terahertz Band

实现太赫兹频段的无线通信

• 批准号: 1608579
• 负责人: Ian Akyildiz
• 金额: $ 33万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-07-01 至 2020-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1608579&HistoricalAwards=false
• 关键词: Enabling; Wireless; Communications; Terahertz; Band

In recent years, wireless data traffic has grown exponentially due to a change in the way today's society creates, shares and consumes information. This change has been accompanied by an increasing demand for higher speed wireless communication. Wireless Terabit-per-second links are expected to become a reality within the next ten years. Towards this aim, the Terahertz Band (0.1-10 THz) communication is envisioned as one of the key wireless technologies of the next decade. The THz band will help to overcome the spectrum scarcity problems and capacity limitations of current wireless networks, by providing an unprecedentedly large bandwidth. In addition, THz-band communication will enable a plethora of long-awaited applications ranging from instantaneous massive data transfer among nearby devices in Terabit Wireless Personal and Local Area Networks, to ultra-high-definition content streaming over mobile devices in 5G and beyond small cells. Nevertheless, there are several research challenges from the very-high and frequency-selective path loss of the THz-band channel and the very limited distance, which require innovative solutions and the revision of well-established concepts in wireless communication.This project will contribute to pave the way for the development of ultra-broadband communication in the THz band. THz technology and its applications has been recently identified by DARPA as one of the four with a potential broader impact larger than the Internet itself. Ultra-broadband communication will play a major role in the society by drastically increasing the capacity of wireless networks and enabling long-awaited applications not possible with current wireless technologies. In addition, the THz band is not yet regulated. The project team is actively involved in IEEE 802.15 Wireless Personal Area Network Terahertz Task Group, whose objective is to create the first standard for this paradigm. In this project, one graduate student will be supported, and master students (as special topic students) will be involved, to become experts in this fast evolving field. The research results will be disseminated in important, first rate scientific conferences, journals and premier magazines in the field. Moreover, the proposed solutions in this project can be tailored and are useful for the lower frequencies such as the millimeter-wave systems, which can help the development progress of 5G cellular systems.The research objective of this project is to strengthen the theoretical foundations of ultra- broadband communications in the THz band and bring the Terabit-per-second links one-step closer to reality. Our targeted breakthrough is to increase the capacity of wireless systems to reach Terabit-per-second and overcome the spectrum scarcity and capacity limitations of current wireless networks. This project will make contributions along three major thrusts. First, the concept of ultra-massive multiple-input-multiple-output is introduced to overcome the distance limitation, based on the use of the very large antenna arrays with thousands of antenna elements. The dynamic operation modes that include beamforming, spatial multiplexing and a combination of both, as well as the multi-band ultra-massive multiple-input-multiple-output will be analyzed. Second, accurate models for the three-dimensional end-to-end channel, and the three-dimensional ultra-massive multiple-input-multiple-output channel will be developed, which will provide physical insights and the guidelines for the THz band communication design. Third, by capturing the unique channel peculiarities, distance-adaptive resource allocation, and low-sampling-rate and multi-carrier synchronization schemes will be investigated for THz band communications.

近年来，由于当今社会创造，分享和消耗信息的方式发生了变化，无线数据流量已成倍增长。这种变化伴随着对更高速度无线通信的需求不断增长。每秒无线链路有望在未来十年内成为现实。为了实现这一目标，Terahertz乐队（0.1-10 THZ）的通信被视为未来十年的关键无线技术之一。 THZ频段将通过提供前所未有的大带宽来帮助克服当前无线网络的频谱稀缺问题和容量限制。此外，THZ波段的通信将使多种期待已久的应用程序从Terabit无线的个人和局域网中附近设备之间的瞬时大量数据传输到超高定义的内容流在5G中的移动设备上，以及5G的超高定义内容。然而，从THZ波段通道的高和频率选择性路径损失和非常有限的距离之间存在一些研究挑战，这需要创新的解决方案以及对无线通信中建立良好的概念的修订。该项目将为THZ Band中超级频段通信的发展铺平道路。 DARPA最近将THZ技术及其应用确定为具有比Internet本身更大影响的四个。超越频道的通信将通过大幅度提高无线网络的能力并实现当前无线技术不可能实现期待已久的应用程序，从而在社会中发挥重要作用。另外，尚未调节THZ频段。该项目团队积极参与IEEE 802.15无线个人领域网络Terahertz任务组，其目标是为此范式创建第一个标准。在这个项目中，将支持一名研究生，并参与硕士学生（作为特殊主题学生），成为这个快速发展的领域的专家。研究结果将在该领域重要的，一流的科学会议，期刊和首要杂志中传播。此外，该项目中提出的解决方案可以量身定制，并且对于诸如毫米波系统等较低频率很有用，这可以帮助5G细胞系统的开发进度。该项目的研究目标是增强THZ频段中超宽带通信的理论基础，并将Terabit-Per-Per-Per-Per-per-persecond链接带来一个步骤封闭的现实。我们有针对性的突破是提高无线系统每秒达到Terabit的能力，并克服当前无线网络的频谱稀缺性和容量限制。该项目将沿三个主要的推力做出贡献。首先，基于使用具有成千上万个天线元件的非常大的天线阵列，引入了超质量多输入量输出的概念，以克服距离限制。将分析包括波束形成，空间多路复用和两者组合的动态操作模式，以及多波段超质量的多质量多输入量输出。其次，将开发三维端到端通道的准确模型，以及三维超质量多输入式摩尔式输出通道，这将提供物理见解和THZ带通信设计的指南。第三，通过捕获独特的频道特点，距离自适应资源分配以及低采样率和多载波同步方案，将进行THZ频段通信。