Low-Complexity RIS Phase Error Estimation Method for RIS-Aided OFDM Systems 


Vol. 48,  No. 10, pp. 1271-1276, Oct.  2023
10.7840/kics.2023.48.10.1271


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  Abstract

Reconfigurable intelligent surface (RIS) has been recently considered a key technology for future wireless communication systems. In order to achieve the optimal performance that RIS can provide, accurate channel information estimation is essential. However, existing RIS-based techniques did not consider RIS phase shift error. RIS inevitably has phase shift error due to hardware imperfection/defects or quantized phase shifts. In this paper, we propose a phase shift error estimation method with low computational complexity and high accuracy. We demonstrate efficiency of the proposed RIS phase shift error estimation method through simulation results and comparison with a benchmark method.

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[IEEE Style]

S. Jeong and S. Kim, "Low-Complexity RIS Phase Error Estimation Method for RIS-Aided OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 48, no. 10, pp. 1271-1276, 2023. DOI: 10.7840/kics.2023.48.10.1271.

[ACM Style]

Sumin Jeong and SukChan Kim. 2023. Low-Complexity RIS Phase Error Estimation Method for RIS-Aided OFDM Systems. The Journal of Korean Institute of Communications and Information Sciences, 48, 10, (2023), 1271-1276. DOI: 10.7840/kics.2023.48.10.1271.

[KICS Style]

Sumin Jeong and SukChan Kim, "Low-Complexity RIS Phase Error Estimation Method for RIS-Aided OFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 48, no. 10, pp. 1271-1276, 10. 2023. (https://doi.org/10.7840/kics.2023.48.10.1271)
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pISSN : 1226 - 4717
eISSN : 2287 - 3880