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
Macro-Cell Capacity Enhancement with Dynamic Full-Duplex Cellular System
TL;DR: Simulation results demonstrate that the proposed DDC scheme can increase UL user throughput without degrading DL user throughput while maintaining the fairness with regard to individual UE throughput.
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Practical secret key agreement for full-duplex near field communications
TL;DR: A practical, fast, energy-efficient, and secure key agreement scheme for resource-constrained NFC devices by exploiting its off-the-shelf full-duplex capability and randomly introduces synchronization offset and mismatch of amplitude and phase for each bit transmission in order to prevent a passive attacker from determining the generated key.
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Design and Implementation of a Neural Network Aided Self-Interference Cancellation Scheme for Full-Duplex Radios
TL;DR: This work presents a hardware architecture for a neural network based non-linear self-interference canceller and compares it with the own hardware implementation of a conventional polynomial based canceller to show that the neural network canceller has a significantly higher throughput and requires fewer hardware resources.
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Radio Frequency Angular Momentum Biased Quasi-LTI Nonreciprocal Acoustic Filters
Cristian Cassella,Giuseppe Michetti,Michele Pirro,Yao Yu,Ahmed Kord,Dimitrios L. Sounas,Andrea Alù,Matteo Rinaldi +7 more
TL;DR: A new analytical model suitable to capture the behavior of any angular-momentum-biased nonreciprocal device is presented, which allows the main characteristics of the transfer function (poles and zeroes) relative to this new class of non reciprocal filters, thus enabling new synthesis capabilities through standard numerical methods.
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Multi-dimensional spatial light communication made with on-chip InGaN photonic integration
Yongchao Yang,Bingcheng Zhu,Zheng Shi,Jinyuan Wang,Xin Li,Xumin Gao,Jialei Yuan,Yuanhang Li,Yan Jiang,Yongjin Wang +9 more
TL;DR: In this paper, a suspended photonic integration of InGaN multiple-quantum-well light-emitting diode (MQW-LED), waveguide, and photodetector on a single chip is proposed, and the out-of-plane data transmission is realized by detecting the free-space light emission via commercial photodiode module.
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