RFSoC-Based Transceiver Design for Wideband Channel State Information Acquisition 


Vol. 50,  No. 4, pp. 666-675, Apr.  2025
10.7840/kics.2025.50.4.666


PDF Full-Text
  Abstract

Channel state information (CSI), originally defined to compensate for distortions in the channel caused by factors such as multipath and to restore transmitted message signals, has since been widely utilized in applications like positioning and sensing due to its ability to identify propagation channel characteristics between the transmitter and receiver, thereby enabling environmental awareness. Furthermore, since channel characteristics can be estimated precisely as the bandwidth of the transmitted and received signals increases, we developed a system to acquire CSI using signals with bandwidths of up to 320 MHz, as specified by the IEEE 802.11be standard, commonly known as Wi-Fi 7. The method of modifying the commercial Wi-Fi modem firmware to obtain CSI requires expert knowledge of firmware, and the development process is complex and has limitations that make it difficult for a typical researcher to perform in practice. To overcome this limitation, we have implemented hardware and software that operate in a software-defined radio (SDR) manner using an RFSoC (radio frequency system on chip) board, and through field experiments, we confirmed that it is possible to acquire CSI corresponding to each bandwidth by transmitting and receiving signals with bandwidths of 20, 40, 80, 160, and 320 MHz. In addition, experimental measurements verified that the characteristics of the estimated channel state varies based on the presence or absence of a line-of-sight (LOS) path between the transmitter and receiver. These findings demonstrate that our system can be utilized to develop future positioning and sensing technologies using Wi-Fi 7. In particular, this paper provides a detailed description of the hardware manufacturing process, which is expected to contribute to the construction of a Wi-Fi standard-compliant system that supports the transmission and reception of signals with a wider bandwidth in the future.

  Statistics
Cumulative Counts from November, 2022
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.


  Related Articles
  Cite this article

[IEEE Style]

H. An, Y. Ha, J. Lee, J. Choi, S. Lee, "RFSoC-Based Transceiver Design for Wideband Channel State Information Acquisition," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 4, pp. 666-675, 2025. DOI: 10.7840/kics.2025.50.4.666.

[ACM Style]

Hyeon-seon An, Young-hun Ha, Jong-uk Lee, Jeong-sik Choi, and Soon-kyo Lee. 2025. RFSoC-Based Transceiver Design for Wideband Channel State Information Acquisition. The Journal of Korean Institute of Communications and Information Sciences, 50, 4, (2025), 666-675. DOI: 10.7840/kics.2025.50.4.666.

[KICS Style]

Hyeon-seon An, Young-hun Ha, Jong-uk Lee, Jeong-sik Choi, Soon-kyo Lee, "RFSoC-Based Transceiver Design for Wideband Channel State Information Acquisition," The Journal of Korean Institute of Communications and Information Sciences, vol. 50, no. 4, pp. 666-675, 4. 2025. (https://doi.org/10.7840/kics.2025.50.4.666)
Vol. 50, No. 4 Index

Search
(IN TITLE, AUTHOR, ABSTRACT,KEYWORDS)

Advanced Search ▼

POPULAR KEYWORDS
(TOP 10 KEYWORDS)

Recent Publications
(LAST 3 YEARS)






pISSN : 1226 - 4717
eISSN : 2287 - 3880