Research Interests

I am primarily interested in conducting fundamental research on the interplay between electromagnetic theory, information theory and signal processing, and its applications to wireless communication systems.

My current research interests are as follows:

  • Extremely large aperture arrays (ELAAs) - modeling/analysis of visibility regions via graph theoretic tools

  • Joint communications, sensing and computing - modeling and fundamental performance analysis

  • Federated learning over the air - models/algorithms for next-generation wireless architectures with federated learning

  • Intelligent Reconfigurable Surfaces - channel estimation, transmission designs, and performance analysis

  • Sub-6 GHz Massive MIMO - channel estimation, power control and pilot contamination analysis

  • Non-Orthogonal Multiple-Access (NOMA) - channel estimation and practical transmission impairments

  • Dynamic TDD transmission designs for heterogeneous cellular systems with spectrum-sharing

  • Millimeter-wave communication systems - channel estimation, hydrid-precoder designs and fundamental performance analysis

  • Physical layer security - detection and mitigation of active pilot attacks

  • Deep learning for physical-layer communication designs

  • Wireless energy harvesting for IoTs - Non-linear effects of energy harvesting circuitry

  • Simultaneous wireless information and power transfer - Fundamental energy-rate trade-off analysis with estimated channels

  • Cooperative MIMO relay networks - impact of massive MIMO with imperfectly estimated channels

Funding agencies for my research:

  • NSF

  • DoE/IEPA

  • NASA

  • Advanced Energy Institute - SIU