Single-element and phased-array transceiver chipsets for 60-ghz Gb/s communications

The future of mobile computing involves autonomous drones, robots and vehicles. To accurately sense their surroundings in a variety of scenarios, these mobile computers require a robust environmental mapping system. One attractive approach is to reuse millimeterwave communication hardware in these devices, e.g. 60GHz networking chipset, and capture signals reflected by the target surface. The devices can also move while collecting reflection signals, creating a large synthetic aperture radar (SAR) for high-precision RF imaging. Our experimental measurements, however, show that this approach provides poor precision in practice, as imaging results are highly sensitive to device positioning errors that translate into phase errors. We address this challenge by proposing a new 60GHz imaging algorithm, RSS Series Analysis, which images an object using only RSS measurements recorded along the device's trajectory. In addition to object location, our algorithm can discover a rich set of object surface properties at high precision, including object surface orientation, curvature, boundaries, and surface material. We tested our system on a variety of common household objects (between 5cm-30cm in width). Results show that it achieves high accuracy (cm level) in a variety of dimensions, and is highly robust against noises in device position and trajectory tracking. We believe that this is the first practical mobile imaging system (re)using 60GHz networking devices, and provides a basic primitive towards the construction of detailed environmental mapping systems.

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“…Finally, RX analyzes the data to image the object(s). 11 Phased array beam steering delay is as low as 50ns [47]. Scanning 360…”

Section: Object Sensing and Rx Movement Planningmentioning

confidence: 99%

Reusing 60GHz Radios for Mobile Radar Imaging

Zhu

Zhao

et al. 2015

Proceedings of the 21st Annual International Conference on Mobile Computing and Networking

111

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“…현재 WLAN의 주류를 이루고 있 는 IEEE 802.11n 표준이 2.4 또는 5 GHz 근처 40 MHz 대 역폭을 사용하여 최대 600 Mbps의 데이터 전송 속도를 내는 반면에, 802.11ad 표준은 60 GHz 근처 1.9 GHz 대역 폭을 사용해 6 Gbps 이상의 속도를 낼 수 있다 [1] . 60 GHz 모듈에는 안테나 피드의 삽입 손실을 줄이기 위해 liquid crystal polymer 같은 특수 플라스틱이나 세라믹 기판이 사용된다 [2], [3] .…”

Section: ⅰ 서 론unclassified

Optimization of a Flip-Chip Transition for Signal Integrity at 60-GHz Band

Kam

2014

The Journal of Korean Institute of Electromagnetic Engineering

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“…Recent advances in radio design make 60 GHz beamforming radios readily available and affordable, either as directional (horn) antennas [15] or antenna arrays [4]. They can adjust beam direction in fine-grain [15,27], either mechanically or electronically.…”

Section: Ghz Wirelessmentioning

confidence: 99%

3D beamforming for wireless data centers

Zhang

Zhou

Yang

et al. 2011

Proceedings of the 10th ACM Workshop on Hot Topics in Networks

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Contrary to prior assumptions, recent measurements show that data center traffic is not constrained by network bisection bandwidth, but is instead prone to congestion loss caused by short traffic bursts. Compared to the cost and complexity of modifying data center architectures, a much more attractive option is to augment wired links with flexible wireless links in the 60 GHz band. Current proposals, however, are severely constrained by two factors. First, 60 GHz wireless links are limited by line-of-sight, and can be blocked by even small obstacles between the endpoints. Second, even beamforming links leak power, and potential interference will severely limit concurrent transmissions in dense data centers. In this paper, we explore the feasibility of a new wireless primitive for data centers, 3D beamforming. We explore the design space, and show how bouncing 60 GHz wireless links off reflective ceilings can address both link blockage and link interference, thus improving link range and number of current transmissions in the data center.

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Single-element and phased-array transceiver chipsets for 60-ghz Gb/s communications

Cited by 47 publications

References 9 publications

Reusing 60GHz Radios for Mobile Radar Imaging

Reusing 60GHz Radios for Mobile Radar Imaging

Optimization of a Flip-Chip Transition for Signal Integrity at 60-GHz Band

3D beamforming for wireless data centers

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