Lingjia Liu has opportunities to work on both fundamental research through National Science Foundation, U.S. Air Force Office of Scientific Research, and U.S. Air Force Research Laboratory funded projects and applied research through making contributions to 4G cellular standards (3GPP LTE/LTE-Advanced and IEEE 802.16m). This unique experience allows him to be able to identify and solve problems that have both theoretical significance and practical importance.

In general, Lingjia Liu conducts research in probability theory, queueing theory, information theory, signal processing, and in their applications to wireless communication systems and networks. His current research focuses on inter-cell interference management, delay-sensitive communications over wireless networks, energy-efficient wireless communication, and enabling technologies for 5G/6G networks. Currently, his research is sponsored by Air Force Office of Scientific Research, Air Force Research Laboratory, National Science Foundation, National Spectrum Consortium, InterDigital, and Samsung Research America. His research efforts have been supported in part by over $70 M in research funding, with Lingjia Liu serving as the principal investigator (PI) on over $8 M federal grants.

• NSF/ECCS-1802710: Delay-Sensitive Hybrid Broadcast/Unicast Traffic over Heterogeneous Cellular Networks, Sole PI from the leading institution, 08/10/2017-05/31/2021.

• NSF/ECCS-1811497: Enabling Spectrum and Energy-Efficient Dynamic Spectrum Access Wireless Networks using Neuromorphic Computing, PI from the leading institution, 08/10/2017-07/31/2023.

• NSF/CNS-1811720: Spatial Spectrum Sensing-Based Device-to-Device (D2D) Networks, Sole PI, 08/10/2017-08/31/2023.

• NSF/CCF-1937487: RTML: Small: Achieving Real-Time and Energy-efficient Computing for 5G Networks (ARTEN): A Deep Reservoir Computing Approach, Co-PI, 10/01/2019-09/30/2024.

• NSF/CCF-2003059: MLWiNS: Deep Neural Networks Meet Physical Layer Communications -- Learning with Knowledge of Structure, PI from the leading institution, 08/01/2020-07/31/2024.

• NSF/ECCS-2128594: SWIFT: Intelligent Dynamic Spectrum Access (IDEA): An Efficient Learning Approach to Enhancing Spectrum Utilization and Coexistence, PI from the leading institution, 09/2022 - 08/2025

• NSF/CNS-2148212: RINGS: Learning-Enabled Ground and Air Integrated Networks (GAINs), PI from the leading institution, 08/2022 - 07/2025

• Digital Beam-forming and Interference Mitigation for MIMO Systems, PI, 10/18/2018-09/30/2021.

• Resource Allocation Optimization for Dynamic Spectrum Access (DSA) Network, PI, 09/01/2017-08/30/2020.

• FA8750-18-1-0175: Cooperative Routing Meets Swarm UAVs, Sole PI, 10/01/2018 - 03/25/2021.

• Enabling Technologies for Beyond-5G and 6G Networks, Sole PI, 01/01/2019 - 12/31/2019.

• NSF/ECCS-1228071: Heterogeneous Traffic over Heterogeneous Relay Networks, Sole Principal Investigator (PI), 09/01/2012-08/31/2016.

• NSF/CCF-1422241: Fundamentals of Energy-Efficiency in Delay-Sensitive Wireless Communications, PI, 08/01/2014-07/31/2016.

• NSF/CNS-1547774: Student Travel Support for the IEEE Globecom 2015, Sole PI, 08/15/2015-07/31/2016.

• AFOSR Summer Faculty Program: Delay-Sensitive Communications over Aerial Networks, Sole PI, 05/13/2013 - 07/19/2013.

• AFOSR Summer Faculty Program: MIMO Cognitive Radio Networks, Sole PI, 05/19/2014 - 08/01/2014.

• FA8750-14-1-0077: Cooperative Routing for Dynamic Aerial Layer Networks, Sole PI, 02/10/2014 - 09/30/2017.

• FA8750-15-1-0052: Neuromorphic Computing for MIMO Sysrems, co-PI (PI: Yang Yi), 02/25/2015 - 09/30/2016.

• AFRL Visiting Faculty Program: Interference Alignment for MIMO Cognitive Radio Networks, Sole PI, 05/25/2015 - 12/31/2015.

• FA8750-14-R925539: Dynamic Spectrum Access with Limited Sensing Capability, Sole PI, 09/01/2014 - 12/31/2014.

• FA8750-13-2-0115: Spectrum Sensing in Dynamic Spectrum Access Networks, Sole PI, 07/29/2013 - 10/31/2013.

• Machine Learning for Wireless Communications, Sole PI, 01/01/2018 - 12/31/2018.

• IND007-06-57: 3D Massive MIMO/FD-MIMO: DoA Estimation and Capacity Analysis, Sole PI, 10/01/2012 - 10/18/2017.

• IND007-19-93: HARQ over Finite Transport Block Transmissions, PI, (Co-PI: Erik Perrins), 05/01/2014 - 10/30/2016.

• General Research Award: Demand Response Optimization for Smart Grid Networks, Sole PI), 09/01/2013 - 08/31/2014.

• New Faculty General Research Award: Delay-Sensitive Traffic over Heterogeneous Relay Networks, Sole PI), 06/01/2012 - 08/15/2012.