My Ph.D. reserach aims to bring in-band full-duplex capability to millimeter wave communication systems by combining theory, measurements, and practical knowledge.

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Preprint

Spatial and Statistical Modeling of Multi-Panel Millimeter Wave Self-Interference
by I. P. Roberts, A. Chopra, T. Novlan, S. Vishwanath, and J. G. Andrews
Submitted to IEEE Journal on Selected Areas in Communications, Oct 2022
The first measurement-backed model of mmWave self-interference.
[PDF] [arXiv] [BibTeX]

Downlink Analysis and Evaluation of Multi-Beam LEO Satellite Communication in Shadowed Rician Channels
by E. Kim, I. P. Roberts, and J. G. Andrews
Submitted to IEEE Transactions on Communications, Jul 2022
Analysis and simulation of key downlink performance metrics in multi-beam LEO satellite communication systems.
[PDF] [arXiv]

LoneSTAR: Analog Beamforming Codebooks for Full-Duplex Millimeter Wave Systems
by I. P. Roberts, S. Vishwanath, and J. G. Andrews
Submitted to IEEE Transactions on Wireless Communications, Jun 2022
Enabling full-duplex mmWave systems through the design of beamforming codebooks that mitigate self-interference and deliver high gain.
[PDF] [arXiv] [BibTeX]

Journal and Magazine

System-Level Analysis of Full-Duplex Self-Backhauled Millimeter Wave Networks
by M. Gupta, I. P. Roberts, and J. G. Andrews
IEEE Transactions on Wireless Communications, Sep 2022
Highlighting the rate and latency improvements introduced by full-duplex in IAB networks.
[PDF] [IEEE] [arXiv] [BibTeX]

STEER: Beam Selection for Full-Duplex Millimeter Wave Communication Systems
by I. P. Roberts, A. Chopra, T. Novlan, S. Vishwanath, and J. G. Andrews
IEEE Transactions on Communications, Aug 2022
A beamforming-based solution enabling full-duplex mmWave systems while accommodating beam alignment and limited channel knowledge.
[PDF] [IEEE] [arXiv] [poster] [BibTeX]

Beamformed Self-Interference Measurements at 28 GHz: Spatial Insights and Angular Spread
by I. P. Roberts, A. Chopra, T. Novlan, S. Vishwanath, and J. G. Andrews
IEEE Transactions on Wireless Communications, Jun 2022
An extensive measurement campaign of self-interference in mmWave systems.
[PDF] [IEEE] [code] [BibTeX]

Hybrid Beamforming for Millimeter Wave Full-Duplex under Limited Receive Dynamic Range
by I. P. Roberts, J. G. Andrews, and S. Vishwanath
IEEE Transactions on Wireless Communications, Jun 2021
A beamforming design for mmWave full-duplex that prevents self-interference from saturating receive components.
[PDF] [IEEE] [arXiv] [BibTeX]

Millimeter-Wave Full Duplex Radios: New Challenges and Techniques
by I. P. Roberts, J. G. Andrews, H. B. Jain, and S. Vishwanath
IEEE Wireless Communications Magazine, Feb 2021
Outlining key system-level challenges, unknowns, and potential solutions for mmWave full-duplex.
[PDF] [IEEE] [arXiv] [BibTeX]

Book Chapter

Full-Duplex Transceivers for Next-Generation Wireless Communication Systems
by I. P. Roberts and H. A. Suraweera
Book chapter to appear in Fundamentals of 6G Communications and Networking to be published by Springer, Oct 2022
An overview of full-duplex technology and its role in next-generation wireless networks.
[PDF] [arXiv]

Conference

28 GHz Phased Array-Based Self-Interference Measurements for Millimeter Wave Full-Duplex
by A. Chopra, I. P. Roberts, T. Novlan, and J. G. Andrews
IEEE WCNC, Apr 2022
Spatially dense measurements of self-interference in full-duplex mmWave systems.
[PDF] [IEEE] [arXiv] [YouTube] [slides]

Millimeter Wave Analog Beamforming Codebooks Robust to Self-Interference
by I. P. Roberts, H. B. Jain, S. Vishwanath, and J. G. Andrews
IEEE GLOBECOM, Dec 2021
A design methodology for codebooks that offer high beamforming gain while minimizing self-interference.
[PDF] [IEEE] [arXiv] [YouTube]

Downlink Analysis of LEO Multi-Beam Satellite Communication in Shadowed Rician Channels
by E. Kim, I. P. Roberts, P. A. Iannucci, and J. G. Andrews
IEEE GLOBECOM, Dec 2021
An examination and simulation of signal and interference in LEO satellite communication systems under Shadowed Rician channels.
[PDF] [IEEE] [arXiv]

MIMO for MATLAB: A Toolbox for Simulating MIMO Communication Systems
by I. P. Roberts
arXiv, Nov 2021
A MATLAB toolbox for simulating MIMO communication systems at the symbol-level.
[PDF] [arXiv]

Collision Detection in Dense Wi-Fi Networks using Self-Interference Cancellation
by R. K. Mishra, Y. Chen, I. P. Roberts, and S. Vishwanath
IEEE ICC Workshops, Jun 2020
A method to improve dense network performance by leveraging self-interference cancellation to detect and avoid collisions.
[PDF] [IEEE]

Equipping Millimeter-Wave Full-Duplex with Analog Self-Interference Cancellation
by I. P. Roberts, H. B. Jain, and S. Vishwanath
IEEE ICC Workshops, Jun 2020
Examining how analog self-interference cancellation can supplement beamforming cancellation to enable mmWave full-duplex.
[PDF] [IEEE] [arXiv] [YouTube] [slides]

Frequency-Selective Beamforming Cancellation Design for Millimeter-Wave Full-Duplex
by I. P. Roberts, H. B. Jain, and S. Vishwanath
IEEE ICC, Jun 2020
Extending our beamforming cancellation design for mmWave full-duplex to frequency-selective settings.
[PDF] [IEEE] [arXiv] [YouTube] [slides]

Enabling In-Band Coexistence of Millimeter-Wave Communication and Radar
by H. B. Jain, I. P. Roberts, and S. Vishwanath
IEEE RADAR, Apr 2020
A look at how concepts of mmWave full-duplex can enable in-band coexistence of communication and radar.
[PDF] [IEEE] [arXiv] [YouTube] [slides]

Beamforming Cancellation Design for Millimeter-Wave Full-Duplex
by I. P. Roberts and S. Vishwanath
IEEE GLOBECOM, Dec 2019
Enabling in-band full-duplex at mmWave via strategic MIMO precoding and combining.
[PDF] [IEEE] [arXiv] [slides]

Acknowledgment

Much of my work beginning Fall 2020 is supported by the National Science Foundation Graduate Research Fellowship Program (Grant No. DGE-1610403). Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. I appreciate their support of my graduate research and studies.

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