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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Proceedings ArticleDOI
Multi-Objective Optimization for Power Efficient Full-Duplex Wireless Communication Systems
TL;DR: Simulation results not only unveil the trade-off between the total downlink and the total uplink transmit power, but also confirm that the proposed FD system provides substantial power savings over traditional HD systems.
Patent
Devices and methods for backscatter communication using one or more wireless communication protocols including bluetooth low energy examples
TL;DR: In this paper, backscatter devices and methods for backscattering are described that provide a transmitted backscattered signal formatted in accordance with a wireless communication protocol (e.g. Bluetooth Low Energy, WiFi, IEEE 802.11, or IEEE 802.,15.4).
Journal ArticleDOI
Multiuser Full-Duplex IoT Networks With Wireless-Powered Relaying: Performance Analysis and Energy Efficiency Optimization
TL;DR: This paper derives exact overall outage probability (OOP) expressions and tight closed-form expressions for the ergodic sum rate (ESR) under generalized Nakagami- ${m}$ fading channels and obtains optimal power allocation (OPA) under the total power and rate threshold constraints.
Journal ArticleDOI
On the Feasibility of Full-Duplex Large-Scale MIMO Cellular Systems
TL;DR: In this article, the authors derived the analytic model of the ergodic achievable sum-rate for cell-boundary users by applying a simple linear filter, i.e., matched filter or zero-forcing filter, to the BS.
Journal ArticleDOI
Basis Function Selection of Frequency-Domain Hammerstein Self-Interference Canceller for In-Band Full-Duplex Wireless Communications
TL;DR: A basis function selection technique of a frequency-domain Hammerstein digital self-interference canceller for in-band full-duplex communications can achieve similar cancellation performance compared with the original frequency- domain Hammerstein canceller and a time-domain nonlinear canceller.
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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.