Background
Integrated sensing and communication (ISAC) has been envisioned to benefit various emerging applications in the future, with enhanced spectral, energy, and hardware efficiency. One potential scenario is the use of radio frequency identification (RFID) for inventory management in warehouses or retail stores, where low-cost passive RFID tags replace conventional barcodes. With ISAC, the systems can leverage sensing signals to track goods by detecting RFID tags, while simultaneously transmitting signals to the communication targets, e.g., wireless surveillance cameras or mobile devices, in a cooperative manner. However, realizing such systems is challenged by the limited detection range of RFID tags due to the absence of a built-in power source.
Invention Description
Researchers at Arizona State have developed an Integrated Sensing and Communication (ISAC) System using backscattering RFID Tags that enhance the efficiency of RFID systems by optimizing joint beamforming for improved sensing and communication. The dynamic features of joint beamforming strategies, including zero-forcing and joint optimization methods, enhance both sensing and communication capabilities under power constraints. Through detailed mathematical modeling and simulations, this invention has the potential of improving overall system performance.
Potential Applications:
- Wireless Communication & Sensing Technologies
- Low Power Electronics & Energy Harvesting
- IoT (Internet of Things)
Benefits and Advantages:
- RFID Detection- Enhanced detection
- Enhanced system performance- Joint beamforming optimization
- Eco-Optimized Power- Increased power efficiency & optimized power usage
Related Publication: ISAC with Backscattering RFID Tags: Joint Beamforming Design