no code implementations • 17 Mar 2024 • Hyowon Lee, Jungyeon Kim, Geon Choi, Ian P. Roberts, Jinseok Choi, Namyoon Lee
In this paper, we propose a novel algorithm for nonlinear digital SIC that adaptively constructs orthonormal polynomial basis functions according to the non-stationary moments of the transmit signal.
no code implementations • 25 Jan 2024 • Ao Liu, Ian P. Roberts, Taneli Riihonen, Weixing Sheng
This letter develops a novel transmit beamforming (BF) design for canceling self-interference (SI) in analog in-band full-duplex phased arrays.
no code implementations • 30 Nov 2023 • Eunsun Kim, Ian P. Roberts, Jeffrey G. Andrews
We carefully model and study the potential downlink interference between the two systems and investigate how strategic satellite selection may be used by Kuiper to serve its ground users while also protecting Starlink ground users.
no code implementations • 20 Jul 2023 • Ian P. Roberts, Yu Zhang, Tawfik Osman, Ahmed Alkhateeb
Noteworthy strides continue to be made in the development of full-duplex millimeter wave (mmWave) communication systems, but most of this progress has been built on theoretical models and validated through simulation.
no code implementations • 14 Oct 2022 • Ian P. Roberts, Himal A. Suraweera
Wireless communication systems can be enhanced at the link level, in medium access, and at the network level when transceivers are equipped with full-duplex capability: the transformative ability to simultaneously transmit and receive over the same frequency spectrum.
no code implementations • 14 Oct 2022 • Ian P. Roberts, Aditya Chopra, Thomas Novlan, Sriram Vishwanath, Jeffrey G. Andrews
Characterizing self-interference is essential to the design and evaluation of in-band full-duplex communication systems.
no code implementations • 15 Jul 2022 • Ian P. Roberts, Aditya Chopra, Thomas Novlan, Sriram Vishwanath, Jeffrey G. Andrews
Modern millimeter wave (mmWave) communication systems rely on beam alignment to deliver sufficient beamforming gain to close the link between devices.
no code implementations • 14 Jul 2022 • Eunsun Kim, Ian P. Roberts, Jeffrey G. Andrews
The extension of wide area wireless connectivity to low-earth orbit (LEO) satellite communication systems demands a fresh look at the effects of in-orbit base stations, sky-to-ground propagation, and cell planning.
no code implementations • 22 Jun 2022 • Ian P. Roberts, Sriram Vishwanath, Jeffrey G. Andrews
This work develops LoneSTAR, a novel enabler of full-duplex millimeter wave (mmWave) communication systems through the design of analog beamforming codebooks.
no code implementations • 15 Jun 2022 • Ian P. Roberts, Aditya Chopra, Thomas Novlan, Sriram Vishwanath, Jeffrey G. Andrews
We present measurements and analysis of self-interference in multi-panel millimeter wave (mmWave) full-duplex communication systems at 28 GHz.
no code implementations • 5 Mar 2022 • Aditya Chopra, Ian P. Roberts, Thomas Novlan, Jeffrey G. Andrews
We present measurements of the 28 GHz self-interference channel for full-duplex sectorized multi-panel millimeter wave (mmWave) systems, such as integrated access and backhaul.
no code implementations • 10 Dec 2021 • Manan Gupta, Ian P. Roberts, Jeffrey G. Andrews
We use this to characterize the network-level improvements seen when upgrading from conventional HD IAB nodes to FD ones by deriving closed-form expressions for (i) latency gain of FD-IAB over HD-IAB and (ii) the maximum number of hops that a HD- and FD-IAB network can support while satisfying latency and throughput targets.
no code implementations • 9 Nov 2021 • Ian P. Roberts
We present MIMO FOR MATLAB (MFM), a toolbox for MATLAB that aims to simplify the simulation of multiple-input multiple-output (MIMO) communication systems research while facilitating reproducibility, consistency, and community-driven customization.
no code implementations • 29 Jul 2021 • Eunsun Kim, Ian P. Roberts, Peter A. Iannucci, Jeffrey G. Andrews
The coming extension of cellular technology to base-stations in low-earth orbit (LEO) requires a fresh look at terrestrial 3GPP channel models.
no code implementations • 27 May 2021 • Ian P. Roberts, Hardik B. Jain, Sriram Vishwanath, Jeffrey G. Andrews
This paper develops a novel methodology for designing analog beamforming codebooks for full-duplex millimeter wave (mmWave) transceivers, the first such codebooks to the best of our knowledge.
no code implementations • 21 Dec 2020 • Ian P. Roberts, Jeffrey G. Andrews, Sriram Vishwanath
To prevent self-interference from saturating the receiver of a full-duplex device having limited dynamic range, our design addresses saturation on a per-antenna and per-RF chain basis.
no code implementations • 13 Sep 2020 • Ian P. Roberts, Jeffrey G. Andrews, Hardik B. Jain, Sriram Vishwanath
Equipping millimeter wave (mmWave) systems with full-duplex capability would accelerate and transform next-generation wireless applications and forge a path for new ones.
no code implementations • 18 Aug 2019 • Ian P. Roberts, Sriram Vishwanath
In recent years, there has been extensive research on millimeter-wave (mmWave) communication and on in-band full-duplex (FD) communication, but work on the combination of the two is relatively lacking.