A Breakthrough in 6G Wireless Communication and Sensing for Dynamic Range Optimization
A new study for an up-and-coming 6G feature around Integrated Sensing and Communication (ISAC) using Reconfigurable Intelligent Surfaces (RIS), addressing critical challenges in next-generation wireless networks, particularly those anticipated in 6G has been published on the 27th of January 2025 where Ahmad Bazzi, a research scientist at New York University (NYU) Abu Dhabi and NYU WIRELESS appears as first author and Marwa Chafii, an associate professor at NYU Abu Dhabi and NYU WIRELESS is the last author, and the paper is titled “Low Dynamic Range for RIS-aided Bistatic Integrated Sensing and Communication”, published in IEEE Selected Areas on Communications.
Despite its advantages, integrating RIS into ISAC systems presents interference challenges that can significantly impact system performance. The research identifies a critical issue: the path interference invoked by RIS-assisted communication and sensing tasks. This interference is composed of: Direct Path Interference, which are signals directly reaching the passive radar (PR) from the base station. Further, reflected path interference are signals reflected by the RIS, which can overwhelm the PR with excess power. The paper also shows that uncontrolled interference can degrade the accuracy of radar sensing, making it difficult to detect and track objects effectively.
The paper represents a major step toward realizing interference-resilient ISAC systems for next-generation wireless networks. With RIS technology expected to play a pivotal role in smart cities, V2X communication, and industrial automation, optimizing ISAC performance will be essential for unlocking the full potential of 6G.
The full citation of the paper is:
- Bazzi and M. Chafii, "Low Dynamic Range for RIS-aided Bistatic Integrated Sensing and Communication," in IEEE Journal on Selected Areas in Communications, doi: 10.1109/JSAC.2025.3531533.