Current Trends in Integrated Sensing and Communication Systems

The field of integrated sensing and communication (ISAC) is witnessing significant advancements, particularly in the areas of channel characterization, reconfigurable intelligent surfaces, and simultaneous communication and tracking. Recent developments emphasize the integration of multiple technologies to enhance system performance and efficiency. Channel characterization efforts are expanding into new frequency ranges and environments, providing more accurate and comprehensive models for system design. Reconfigurable intelligent surfaces are being innovatively applied in underwater and terrestrial settings, demonstrating substantial improvements in communication range and data rates through precise beam steering and modulation techniques. Simultaneous communication and tracking methods are evolving to leverage bistatic and multistatic setups, enabling more accurate and efficient tracking of moving targets while maintaining high spectral efficiency in communication.

Noteworthy papers include one that presents an off-the-grid estimator for ISAC systems using lifted atomic norm minimization, demonstrating accurate estimation of communication data and target parameters. Another highlights the development of underwater acoustic reconfigurable intelligent surfaces, significantly enhancing communication ranges and data rates in various environments. Additionally, a study on simultaneous communication and tracking using fused bistatic measurements shows near-ideal spectral efficiency, even in complex scenarios.