A General Channel Model for Integrated Sensing and Communication Scenarios

Abstract

Aiming to the vision of 6G, integrated sensing and communication (ISAC), as the potential techniques to deal with the increasing demands of native perception ability, has recently attracted a lot of attention. In order to guide system optimization and evaluate novel ISAC techniques, accurate and realistic wireless channel model for ISAC is essential. This article proposes a framework of ISAC channel modeling extended based on 3GPP channel model, which can be used for system simulation and performance analysis of 6G ISAC techniques. We first overview the principles and characteristics of 3GPP channel model, and then we detail the generation of sensing channels as well as communication channels. The birth and death process from communication clusters to sensing clusters is presented in the channel modeling, and the sensing channel modeling approach is proposed for ISAC channels. Implementation of ISAC channel model is presented and the simulation results are discussed.