CAREER: Propagation Modeling and Measurements for THz Wireless Chip-to-Chip Communications

职业：太赫兹无线芯片间通信的传播建模和测量

• 批准号: 1651273
• 负责人: Alenka Zajic
• 金额: $ 50万
• 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: 2017
• 资助国家: 美国
• 起止时间: 2017-02-01 至 2023-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1651273&HistoricalAwards=false
• 关键词: CAREER; Propagation; Modeling; Measurements; THz

New applications such as self-driving cars, smart-homes, and/or industrial automation will all require cloud computing that relies on many fast computers in data centers. However, even today, cable management in data centers is a serious challenge and limitation of number of pins on the processor is becoming a bottleneck in designing faster computers. To alleviate these problems, this project explores ways to design wireless links at terahertz frequencies that can provide data rates of hundreds of gigabytes per second that would alleviate "cable management" and "pin-count" problems. Insights and results from this project will develop fundamental understanding of wireless propagation at terahertz frequencies and also stimulate further related research in wireless communications and computer engineering.Wireless data communications between co-located computer systems, such as datacenter blades and racks, would greatly help alleviate the "cable management" problem that arises in datacenters, where physical routing of the many data cables creates airflow, serviceability, and even reliability problems. Similarly, within a computer system, wireless communications among components, such as processors, memory modules, graphics cards, etc., would greatly help alleviate the "pin count" problem, where data throughput is limited by the number of pins that can be physically put on the chip's package. However, both environments, require data rates in the 100s of gigabits per second and only terahertz wireless communications have the potential to provide the required data rates. On the other hand, very little is known about wireless propagation at terahertz frequencies. The goal of this project is to measure and model propagation of terahertz waves in environments such as a computer case or a datacenter, and to investigate sources of terahertz interference and optimal antenna array configurations for these environments. This project will provide fundamental knowledge and understanding of terahertz chip-to-chip wireless propagation and how to use it to design wireless communication systems. In addition to the broader impact from the research work and development of classes that cover this topic, the proposal includes outreach activities such as PI's continued participation in the 5G Millimeter Wave Channel Model Alliance, led by the National Institutes of Standards and Technology (NIST) and building an interactive demonstrator for key communication and signal propagation concepts.

自动驾驶汽车、智能家居和/或工业自动化等新应用都将需要依赖于数据中心中许多快速计算机的云计算。然而，即使在今天，数据中心的电缆管理也是一个严峻的挑战，处理器上引脚数量的限制正在成为设计更快计算机的瓶颈。为了缓解这些问题，该项目探索了设计太赫兹频率的无线链路的方法，这些无线链路可以提供每秒数百千兆字节的数据速率，从而缓解“电缆管理”和“引脚数”问题。该项目的见解和结果将有助于对太赫兹频率下的无线传播有更基本的了解，并进一步促进无线通信和计算机工程领域的相关研究。位于同一地点的计算机系统（如数据中心刀片和机架）之间的无线数据通信将极大地有助于缓解数据中心中出现的“电缆管理”问题，其中许多数据电缆的物理路由会产生气流，可服务性，甚至可靠性问题。类似地，在计算机系统内，诸如处理器、存储器模块、图形卡等组件之间的无线通信，将大大有助于缓解“引脚数”问题，其中数据吞吐量受到可以物理放置在芯片封装上的引脚数的限制。然而，这两种环境都需要每秒100千兆比特的数据速率，只有太赫兹无线通信才有可能提供所需的数据速率。另一方面，人们对太赫兹频率下的无线传播知之甚少。该项目的目标是测量和模拟太赫兹波在计算机机箱或数据中心等环境中的传播，并调查太赫兹干扰源和这些环境的最佳天线阵列配置。该项目将提供太赫兹芯片到芯片无线传播的基础知识和理解，以及如何使用它来设计无线通信系统。除了研究工作和涵盖该主题的课程开发的更广泛影响外，该提案还包括推广活动，例如PI继续参与由美国国家标准与技术研究院（NIST）领导的5G毫米波信道模型联盟，并为关键通信和信号传播概念建立交互式演示器。

项目成果

THz Bistatic Backscatter Side-Channel Sensing at a Distance

• DOI: 10.1109/tap.2021.3111165
• 发表时间: 2022-02
• 期刊: IEEE Transactions on Antennas and Propagation
• 影响因子: 5.7
• 作者: S. Adibelli;P. Juyal;Milos Prvulović;A. Zajić

Modeling of THz Chip-to-Chip Wireless Channels in Metal Enclosures

金属外壳中太赫兹芯片到芯片无线通道的建模

• 发表时间: 2018
• 期刊: 12th European Conference on Antannas and Propagation
• 作者: Zajic, Alenka;Juyal, Prateek
• 通讯作者: Juyal, Prateek

Exploiting Switching of Transistors in Digital Electronics for RFID Tag Design

利用数字电子中晶体管的开关进行 RFID 标签设计

• 发表时间: 2019
• 期刊: IEEE journal of radio frequency identification
• 影响因子: 3.1
• 作者: C-L Cheng, L. N.

Digital Electronics as RFID Tags: Impedance Estimation and Propagation Characterization at 26.5 GHz and 300 GHz

• DOI: 10.1109/jrfid.2020.3015798
• 发表时间: 2021-03
• 期刊: IEEE Journal of Radio Frequency Identification
• 影响因子: 3.1
• 作者: Chia-Lin Cheng;S. Sangodoyin;Luong N. Nguyen;Milos Prvulović;A. Zajić

High-Resolution Spatio-Temporal Evaluation of Specular and Diffuse Paths in THz MIMO Channels

太赫兹 MIMO 通道中镜面反射和漫反射路径的高分辨率时空评估

• DOI: 10.23919/ursigass51995.2021.9560351
• 发表时间: 2021
• 期刊: 2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS
• 作者: Sangodoyin, Seun;Kerpicci, Mine;Cheng, Chia-Lin;Zajic, Alenka
• 通讯作者: Zajic, Alenka