| 2022 | WCNC | Jamming Resilient Indoor Factory Deployments: Design and Performance Evaluation. | Leonardo Chiarello, Paolo Baracca, Karthik Upadhya, Saeed R. Khosravirad, Silvio Mandelli, Thorsten Wild |
| 2022 | WCNC | Passive Reflectors for Enhancing Cellular UAV Coverage. | Karthik Upadhya, Kimmo Valkealahti, Martti Moisio, Dani Korpi, Tero Ihalainen, Mikko A. Uusitalo |
| 2021 | PIMRC | Jamming Detection with Subcarrier Blanking for 5G and Beyond in Industry 4.0 Scenarios. | Leonardo Chiarello, Paolo Baracca, Karthik Upadhya, Saeed R. Khosravirad, Thorsten Wild |
| 2021 | VTC | Nonlinear Precoding for Quantized Outphasing RF Chains in Massive MIMO Systems. | Karthik Upadhya, Stefan Wesemann |
| 2019 | ICASSP | On Achievable Rates for Massive Mimo System with Imperfect Channel Covariance Information. | Atchutaram K. Kocharlakota, Karthik Upadhya, Sergiy A. Vorobyov |
| 2018 | ICASSP | Low-Overhead Receiver-Side Channel Tracking for Mmwave Mimo. | Karthik Upadhya, Sergiy A. Vorobyov, Robert W. Heath Jr. |
| 2017 | ICASSP | Time-multiplexed / superimposed pilot selection for massive MIMO pilot decontamination. | Karthik Upadhya, Sergiy A. Vorobyov, Mikko Vehkaper |
| 2016 | ICASSP | Superimposed pilots: An alternative pilot structure to mitigate pilot contamination in massive MIMO. | Karthik Upadhya, Sergiy A. Vorobyov, Mikko Vehkaper |