My research explores the methods and applications of simultaneous transmission and reception in-band.

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 (submitted), December 2020
A beamforming design for mmWave full-duplex that prevents self-interference-induced receiver-side saturation.
[PDF] [arXiv]

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 (to appear), September 2020
Outlining key system-level challenges, unknowns, and potential solutions for mmWave full-duplex.
[PDF] [IEEE] [arXiv]

Collision Detection in Dense Wi-Fi Networks using Self-Interference Cancellation
by R. K. Mishra, Y. Chen, I. P. Roberts, and S. Vishwanath
Proceedings of the IEEE International Conference on Communications Workshop on Full-Duplex Communications for Future Wireless Networks, June 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
Proceedings of the IEEE International Conference on Communications Workshop on Full-Duplex Communications for Future Wireless Networks, June 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
Proceedings of the IEEE International Conference on Communications, June 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
Proceedings of the IEEE International Radar Conference, April 2020
A first 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
Proceedings of the IEEE Global Communications Conference, December 2019
An initial look at enabling in-band full-duplex at mmWave via strategic MIMO precoding and combining.
[PDF] [IEEE] [arXiv] [slides]