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
Recent advances in interference management for wireless networks
TL;DR: It is envisioned that the deployment of these new techniques will lead to dramatic change in the wireless networking paradigm, with profound impact on the future research direction for the Wireless networking community.
Proceedings ArticleDOI
An OFDMA two-symbol coordination MAC protocol for full-duplex wireless networks
TL;DR: This paper proposes a novel MAC protocol for full-duplex OFDMA wireless networks, which extends the concurrent transmission opportunities as much as possible and resolves contention with the minimum overhead and is targeted at densely populated access point based WLAN.
Patent
Interference cancellation in MIMO same channel full-duplex transceivers
TL;DR: In this paper, the interference components from transmissions over multiple local antennas can be removed from a received radio signal to allow array and diversity gain benefits of MIMO to be enjoyed in same-channel full-duplex communications.
Journal ArticleDOI
Robust digital non-linear self-interference cancellation in full duplex radios with maximum correntropy criterion
TL;DR: Under the maximum correntropy criterion (MCC), a robust digital non-linear self-interference cancellation algorithm is proposed for the SI channel estimation and a gradient descent based algorithm is derived to search the optimal solution.
Journal ArticleDOI
Achievable Rates of Buffer-Aided Full-Duplex Gaussian Relay Channels
TL;DR: In this article, the authors derived closed-form expressions for the achievable rates of a buffer-aided full-duplex (FD) multiple-input multiple-output (MIMO) Gaussian relay channel.
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