Receiver Design for Integrated Sensing and Communication

In this chapter, we review the recent research progress in receiver design for integrated sensing and communication (ISAC). The integrated systems are classified into two classes: (1) physical co-existing systems that adopt two sets of dedicated hardware components for different purposes, and (2) dual-functional systems, in which the two functions are more firmly integrated. The basic signal models of both classes and their state-of-the-art solutions in the existing literature are presented and discussed. Particularly, for the former class, we focus on the advanced interference suppression techniques at the receiver side, while for the latter class, the receiver design under several different paradigms are highlighted, including opportunistic sensing, passive sensing, and cellular network sensing. The chapter ends up with some open problems for the receiver design in the future ISAC systems.