Proceedings ArticleDOI
Full duplex radios
Dinesh Bharadia,Emily McMilin,Sachin Katti +2 more
- Vol. 43, Iss: 4, pp 375-386
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TLDR
The design and implementation of the first in-band full duplex WiFi radios that can simultaneously transmit and receive on the same channel using standard WiFi 802.11ac PHYs are presented and achieves close to the theoretical doubling of throughput in all practical deployment scenarios.Abstract:
This paper presents the design and implementation of the first in-band full duplex WiFi radios that can simultaneously transmit and receive on the same channel using standard WiFi 802.11ac PHYs and achieves close to the theoretical doubling of throughput in all practical deployment scenarios. Our design uses a single antenna for simultaneous TX/RX (i.e., the same resources as a standard half duplex system). We also propose novel analog and digital cancellation techniques that cancel the self interference to the receiver noise floor, and therefore ensure that there is no degradation to the received signal. We prototype our design by building our own analog circuit boards and integrating them with a fully WiFi-PHY compatible software radio implementation. We show experimentally that our design works robustly in noisy indoor environments, and provides close to the expected theoretical doubling of throughput in practice.read more
Citations
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Journal ArticleDOI
Asym-FDMAC: In-band full-duplex medium access control protocol for asymmetric traffic in wireless LAN
TL;DR: An IBFD MAC protocol named Asym-FDMAC, is proposed for infrastructure based WLAN to support asymmetric lengths of traffic for uplink and downlink to derive optimal benefit from in-band full-duplex (IBFD) wireless communications.
Journal ArticleDOI
A Multimode 5–6 GHz FD/HD/FDD Quadrature Balanced CMOS Front End With Transmit–Receive Cross-Modulation Distortion Correction
TL;DR: In this paper, a multimode and wideband quadrature balanced CMOS RF front end (RFFE) was proposed for full-duplex (FD), HD, and frequency-division duplex (FDD) operation at the 5 GHz band.
Journal ArticleDOI
Hybrid half-duplex/full-duplex multi-hop relaying schemes
Liang Han,Jiasong Mu +1 more
TL;DR: This research proposes hybrid HD/FD multi-hop decode-and-forward (DF) relaying schemes, where in each time block two nodes communicate directly with each other in HD mode or communicate with the help of an FD relay.
Journal ArticleDOI
Inductorless, Widely Tunable N -Path Shekel Circulators Based on Harmonic Engineering
TL;DR: In this paper, a new class of widely tunable non-magnetic inductorless non-reciprocal circulators based on harmonic engineering is introduced, and two miniaturized $N$ -path Shekel circulators have been implemented in 65-nm CMOS.
Book ChapterDOI
Energy Harvesting Oriented Transceiver Design for 5G Networks
TL;DR: This chapter introduces two wireless–empowered transceiver designs that can harvest energy from the received signals to increase their energy efficiency and proposes a self–interference harvesting full–duplex radio architecture that can deliver both spectral and energy efficiency gains over its state–of–the–art counterparts.
References
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Convex Optimization
Stephen Boyd,Lieven Vandenberghe +1 more
TL;DR: In this article, the focus is on recognizing convex optimization problems and then finding the most appropriate technique for solving them, and a comprehensive introduction to the subject is given. But the focus of this book is not on the optimization problem itself, but on the problem of finding the appropriate technique to solve it.
Proceedings Article
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The design of CMOS radio-frequency integrated circuits, 2nd edition
TL;DR: This expanded and thoroughly revised edition of Thomas H. Lee's acclaimed guide to the design of gigahertz RF integrated circuits features a completely new chapter on the principles of wireless systems.
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The Design of CMOS Radio-Frequency Integrated Circuits
TL;DR: In this article, the authors present an expanded and thoroughly revised edition of Tom Lee's acclaimed guide to the design of gigahertz RF integrated circuits, which is packed with physical insights and design tips, and includes a historical overview of the field in context.