| Title |
Sequential Channel Estimation and Data Detection Method for Robust Underwater Acoustic Communications |
| Authors |
강유진(Yujin Kang) ; 전요셉(Yo-Seb Jeon) |
| DOI |
https://doi.org/10.5573/ieie.2026.63.10.3 |
| Keywords |
Channel estimation; Data detection; Time-varying channels |
| Abstract |
In underwater acoustic communication systems operate in time-varying channels, pilot-based channel estimation alone cannot ensure reliable data detection. This paper proposes a sequential sub-block-based estimation and detection method, where each sub-block performs channel estimation and data detection iteratively. The initial estimate is obtained from pilot signals, and subsequent updates use data-aided results from previous sub-blocks. Simulation results confirm that the proposed method effectively tracks time- varying channels and achieves improved detection performance over conventional schemes. |