Proceedings ArticleDOI
Full duplex radios
Dinesh Bharadia,Emily McMilin,Sachin Katti +2 more
- Vol. 43, Iss: 4, pp 375-386
Reads0
Chats0
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
More filters
Journal ArticleDOI
Frequency Independent Framework for Synthesis of Programmable Non-reciprocal Networks
TL;DR: In this paper, the authors demonstrate a framework for synthesizing theoretically frequency-independent multi-port non-reciprocal networks, which can have an arbitrary number of ports while simultaneously sustaining balanced performance and providing unprecedented programmability.
Proceedings ArticleDOI
Linear Digital Cancellation with Reduced Computational Complexity for Full-Duplex Radios
TL;DR: It is demonstrated that the SI suppression achieved with the proposed approach is not only comparable to existing approach, but with frequency domain SI channel estimates, it can offer 5-7 dB better cancellation under highly frequency selective fading conditions, suggesting its suitability for long range transmission.
Proceedings ArticleDOI
A numerical investigation of all-analog radio self-interference cancellation
TL;DR: It is shown that a recently used uniform architecture with uniformly distributed RF attenuator has a performance highly dependent on the carrier frequency and that a new architecture with the attenuators distributed in a clustered fashion has important advantages over the uniform architecture.
Journal ArticleDOI
Compact In-Band Full Duplexing Antenna for Sub-6 GHz 5G Applications
TL;DR: In this paper, a shared aperture cavity-like structure with two highly orthogonal modes (quarter-wavelength slot mode and half-mode cavity mode) is proposed to achieve high isolation between Tx and Rx ports.
Journal ArticleDOI
Self-mixed self-interference analog cancellation in full-duplex communications
TL;DR: This approach is called self-mixed selfinterference analog cancellation (SM-SIAC), which can merge the analog cancellation circuit and the receiver and derives a closed-form expression for the quadrature amplitude modulation self-interference signal and the GMSK self- interference signal.
References
More filters
Book
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
Wireless communications
TL;DR: This book aims to provide a chronology of key events and individuals involved in the development of microelectronics technology over the past 50 years and some of the individuals involved have been identified and named.
Journal Article
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.
Book
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.