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O-RAN/AI-RAN Testbed
The O-RAN/AI-RAN testbed integrates commercial servers, software-defined radios, and phased-array front-ends into a flexible, programmable wireless platform. It supports a disaggregated O-RAN architecture with virtualized O-CU/O-DU, O-RU, and near-/non-RT RIC, enabling real-time data collection, AI/ML-driven control, and over-the-air experimentation. This setup allows us to prototype intelligent and secure NextG radio access networks, validate ISAC waveforms, and rapidly iterate new algorithms from simulation to hardware.
NextG UAV Detection Using an O-RAN-Controlled Reconfigurable Intelligent Surface (RIS)
A RIS- and O-RAN–assisted Integrated Sensing and Communication (ISAC) framework is presented for high-speed UAV detection and tracking in the 3.7 GHz band. The system integrates composite OFDM–FMCW waveforms, reconfigurable intelligent surfaces (RIS), and O-RAN distributed intelligence to enable scalable, low-latency, and adaptive sensing under spectrum-sharing constraints.
mmWave Breathing Pattern Detection
A lightweight Integrated Sensing and Communication (ISAC) framework is presented for contactless respiration pattern recognition using a composite OFDM–FMCW waveform at 28 GHz mmWave. A narrowband FMCW radar signal is embedded into the OFDM guard band, enabling simultaneous high-resolution sensing and data communication without modifying the OFDM structure or requiring additional hardware.