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Integrated Sensing and Communication:Who Benefits More?
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This paper compares the benefits of communication-assisted sensing and sensing-assisted communication in the context of inte-grated sensing and communication (ISAC). Communication-assisted sensing leverages the extensive cellular infrastructure to create a vast and cooperative sensor network,enhancing environmental perception accuracy and coverage. On the other hand,sensing-assisted communication utilizes advanced sensing technologies to improve predictive beamforming and channel estimation performance in high-frequency and high-mobility scenarios,thereby increasing communication efficiency and reliability. To validate our analysis,we present an example of channel knowledge map (CKM)-assisted beam tracking. This example demonstrates the practical advantages of incorporating CKM in enhancing beam tracking accuracy. Our analysis confirms that communication-assisted sensing may offer greater development potential due to its wide cover-age and cost-effectiveness in large-scale applications.
communication-assisted sensingintegrated sensing and communication (ISAC)sensing-assisted communication6Gvehicle-to-everything (V2X)
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