NeTS: Medium: Scaling WLAN Throughput and Range with Wide Aperture and 100x Spectrum Diversity

该项目的驱动愿景是发展基础，以将视距(LOS)无线局域网(WLANS)的吞吐量扩展到太比特/秒(Tbps)，并利用Tbps视距互连在较低频段形成分布式阵列。也就是说，这个项目的第一个目标是用大口径LOS空间多路复用来扩展毫米波网络，从而克服在高频下缺乏丰富的多径信道的基本限制。第二个目标是克服高频设备无法穿透物体和低频设备由于物理设备限制而无法在单个客户端上拥有大型阵列的问题。克服这些障碍可以形成具有前所未有的性能的全无线分布式阵列。拟议的研究议程将使扩展WLAN吞吐量和范围的新维度成为可能。该项目的目标是通过演示新兴和多样化频谱的新使用案例来影响频谱政策。这个项目将展示基于宽孔径的设计如何使高频段能够进行扩展，以实现以前不可能获得的容量收益。该项目将对标准机构产生影响，因为它将展示对现有标准的增强和不同频段的融合如何产生巨大的性能收益。该项目将通过展示结果以及调查人员广泛的合作行业网络来影响行业。最后，该项目包括一项跨学科教育计划，该团队包括来自代表性不足群体的多名博士生。该项目将为实现扩大无线局域网吞吐量和覆盖范围的愿景提供两个综合的基本进展。第一个项目推力是开发和制造具有皮秒级同步的大口径毫米波互连。关键技术是将分布广泛的辐射单元组合成同步且相干的视线空间多路传输。其次，该项目利用了频谱的不同性质，跨越两个数量级(100倍或100倍)。通过将上述毫米波互连(工作在30 GHz到300 GHz)与传统频段(500 MHz到5 GHz)相耦合，100x架构将实现远程空间多路复用对象穿透链路。该设计将使具有单一传统频段天线的设备能够欺骗传统频段MIMO基础设施执行全等级传输和接收。一个关键的项目成果将是所有扩展原理的实验概念验证演示，以及第一个用于单个传统频段天线设备的分布式传统频段空间多路复用的实验性实现，这种模式由具有100倍频谱多样性的紧密同步分布式天线实现。千兆比特/秒规模的无线传输现在是可行的：在60 GHz的宽带可用性的驱动下，多Gb/秒系统已经在IEEE 802.11ad和无线HDMI等协议中标准化，并可用于商业产品和芯片组，包括支持60 GHz的三频芯片以及2.4 GHz和5 GHz的传统频段。此外，大范围的毫米波频谱(30 GHz至300 GHz)被业界、监管机构和研究机构视为下一代无线系统的主要候选者。该项目的目标是实现下一个数量级的速率、方向性和射程，同时瞄准必须穿透物体的直接视线(LOS)路径和非视线(NLOS)路径。该项目的目标是探索潜在的基础，并设计和实施概念验证系统，以(I)通过联网的毫米波天线形成一个大的有效孔径，实现可扩展到Tbps的无线局域网架构，以及(Ii)融合跨越两个数量级的不同频谱，以便超越设备的物理限制来扩展客户端阵列的大小和随后的容量。

The driving vision of this project is to develop the foundations to scale line-of-sight (LOS) Wireless Local Area Networks (WLANs) to Terabit/second (Tbps) throughput and to exploit Tbps LOS interconnections to form distributed arrays in lower frequency bands. Namely, this project first targets to scale millimeter-wave networks with wide aperture LOS spatial multiplexing, thereby overcoming a fundamental limit of the lack of rich multi-path channels at high frequency. The second target is to overcome the inability of high frequencies to penetrate objects and the inability of lower frequency devices to have large arrays on a single client due to physical device constraints. Surmounting these obstacles enables formation of all-wireless distributed arrays with unprecedented properties. The proposed research agenda will enable new dimensions for scaling WLAN throughput and range.This project targets to impact spectrum policy via demonstration of novel usage cases of emerging and diverse spectral bands. This project will show how a design based on wide aperture enables high frequency bands to scale to achieve previously impossible capacity gains. This project will impact standards bodies as it will show how enhancements to existing standards and fusion of diverse bands can yield vast performance gains. This project will impact industry through demonstration of results coupled with the investigators' extensive collaborative industry network. Finally, the project includes an inter-disciplinary education plan and the team includes multiple Ph.D. students from under-represented groups. This project will provide two integrated fundamental advances towards realizing a vision of scaling WLAN throughput and range. The first project thrust is development and fabrication of a wide aperture millimeter wave interconnect with pico-second scale synchronization. The key technique is combining widely-spaced radiating elements into a synchronized and coherent line-of-sight spatially multiplexed transmission. Second, the project exploits the diverse properties of spectrum spanning two orders of magnitude (100 times or 100x). By coupling the aforementioned millimeter wave interconnect (operating at 30 GHz to 300 GHz) with legacy bands (500 MHz to 5 GHz), the 100x architecture will enable long-range spatially multiplexed object-penetrating links. The design will enable a device with a single legacy-band antenna to spoof legacy-band MIMO infrastructure into performing full-rank transmission and reception. A key project outcome will be experimental proof-of-concept demonstrations of all scaling principles and the first experimental realization of distributed legacy-band spatial multiplexing for single legacy-band antenna devices, a mode enabled by tightly synchronized distributed antennas with 100x spectrum diversity.Gigabit-per-second scale wireless transmission is now feasible: Driven by the wide spectrum availability at 60 GHz, multi-Gb/sec systems are already standardized in protocols such as IEEE 802.11ad and wireless HDMI and are available in commercial products and chipsets, including tri-band chips that support 60 GHz as well as legacy bands at 2.4 and 5 GHz. Moreover, the broad range of millimeter wave spectrum (30 GHz to 300 GHz) is considered a leading candidate by industry, regulators and the research community for the next generation of wireless systems. The project's objective is to realize the next order of magnitude in rate, directionality, and range, targeting both direct line-of-sight (LOS) paths and non-line-of-sight (NLOS) paths that must penetrate objects. The project's goal is to both explore the underlying foundations and to design and implement proof-of-concept systems to (i) realize a WLAN architecture that scales to Tbps via networked mm-wave antennas that form a large effective aperture and (ii) fuse diverse spectral bands spanning two orders of magnitude in order to scale client array size, and subsequently capacity, beyond the physical constraints of the device.