Chen Ji Haoyang Dong Weichao Xu Jisheng Dai Joint Channel Estimation and Data Detection for IRS-Assisted OFDM Systems. 11963-11974 2023 September 72 IEEE Trans. Veh. Technol. 9 https://doi.org/10.1109/TVT.2023.3271214 db/journals/tvt/tvt72.html#JiDXD23