Joint Design of Receive Beamforming and RIS Configuration for Over-the-Air Computation 


Vol. 50,  No. 12, pp. 1895-1898, Dec.  2025
10.7840/kics.2025.50.12.1895


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  Abstract

This work addresses the minimization of mean-squared error (MSE) in an over-the-air system aided by reconfigurable intelligent surfaces (RIS). By jointly optimizing the receive beamforming vector at the base station and the reflection coefficients of the RIS, we aim to improve the accuracy of signal aggregation under device power constraints. We depart from conventional uniform-forcing methods by introducing a misalignment-allowed optimization (Miso) framework that improves performance. Simulations show the proposed algorithms reduce MSE significantly compared to prior methods.

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[IEEE Style]

S. Choi, M. Kim, D. Park, "Joint Design of Receive Beamforming and RIS Configuration for Over-the-Air Computation," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 12, pp. 1895-1898, 2025. DOI: 10.7840/kics.2025.50.12.1895.

[ACM Style]

Sangwoo Choi, Minsik Kim, and Daeyoung Park. 2025. Joint Design of Receive Beamforming and RIS Configuration for Over-the-Air Computation. The Journal of Korean Institute of Communications and Information Sciences, 50, 12, (2025), 1895-1898. DOI: 10.7840/kics.2025.50.12.1895.

[KICS Style]

Sangwoo Choi, Minsik Kim, Daeyoung Park, "Joint Design of Receive Beamforming and RIS Configuration for Over-the-Air Computation," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 12, pp. 1895-1898, 12. 2025. (https://doi.org/10.7840/kics.2025.50.12.1895)
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