Integrated Sensing, Communication, and Computation Over-the-Air in OFDM Systems

Abstract

This work is concerned with integrated sensing, communication, and computation (ISCC) in uplink orthogonal frequency division multiplexing (OFDM) systems, wherein multiple devices perform target sensing and over-the-air computation (AirComp) simultaneously. We aim to minimize the computational mean squared error (MSE) by jointly optimizing the transmitting vector and the aggregation vector. To tackle the non-convexity of this problem, we develop a two-phase iterative algorithm. Simulations demonstrate the effectiveness of the proposed algorithm.