The Role of ISAC in 6G Networks: Enabling Next-Generation Wireless Systems
By: Muhammad Umar Farooq Qaisar , Weijie Yuan , Onur Günlü and more
Potential Business Impact:
Lets phones both talk and see surroundings.
The commencement of the sixth-generation (6G) wireless networks represents a fundamental shift in the integration of communication and sensing technologies to support next-generation applications. Integrated sensing and communication (ISAC) is a key concept in this evolution, enabling end-to-end support for both communication and sensing within a unified framework. It enhances spectrum efficiency, reduces latency, and supports diverse use cases, including smart cities, autonomous systems, and perceptive environments. This tutorial provides a comprehensive overview of ISAC's role in 6G networks, beginning with its evolution since 5G and the technical drivers behind its adoption. Core principles and system variations of ISAC are introduced, followed by an in-depth discussion of the enabling technologies that facilitate its practical deployment. The paper further analyzes current research directions to highlight key challenges, open issues, and emerging trends. Design insights and recommendations are also presented to support future development and implementation. This work ultimately try to address three central questions: Why is ISAC essential for 6G? What innovations does it bring? How will it shape the future of wireless communication?
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