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
Modeling and efficient cancellation of nonlinear self-interference in MIMO full-duplex transceivers
TL;DR: In this paper, the authors proposed a nonlinear spatio-temporal digital cancellation of self-interference in in-band full-duplex (FD) transceivers with multiple transmit and receive antennas, taking into account the effects of I/Q modulator imbalances and power amplifier nonlinearities with memory.
Journal ArticleDOI
Spectrum Allocation and Power Control in Full-Duplex Ultra-Dense Heterogeneous Networks
TL;DR: A novel joint spectrum and power management scheme is presented, which maximizes the total capacity of the FDUDN, under given quality-of-service and cross-tier interference constraints, and utilizes the water-filling theorem in inter-cell power allocation.
Journal ArticleDOI
Rate Region Analysis in a Full-Duplex-Aided Cooperative Nonorthogonal Multiple-Access System
TL;DR: Analytical results demonstrate that the proposedFD-NOMA scheme outperforms the conventional schemes based on NOMA in terms of the rate region, and the maximum rate region of the FD-N OMA scheme is compared with different coefficients.
Proceedings ArticleDOI
Self-Interference Cancellation Limits in Full-Duplex Communication Systems
Ahmed Masmoudi,Tho Le-Ngoc +1 more
TL;DR: The basic causes of SI cancellation bottlenecks in FD are investigated and it is revealed that the main bottleneck to completely cancel the SI turns out to be either the quantization- noise, the phase-noise in the local oscillator or the estimation error, depending on the used architecture.
Journal ArticleDOI
ReflectFX: In-Band Full-Duplex Wireless Communication by Means of Reflected Power
Besma Smida,Seiran Khaledian +1 more
TL;DR: This paper introduces a new full-duplex wireless communication system, named ReflectFX, that relies on backscatter modulation, and derives an expression for the overall achievable throughput and ergodic capacity of ReflectFX.
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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.