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Accurate Channel Identification with Time-Frequency Interferometry for OFDM AHN, Chang-Jun アン, チャンジュン 安, 昌俊 copyright©2007 IEICE OFDM time-frequency interferometry CSI application/pdf In OFDM systems, the pilot signal averaging channel estimation is generally used to identify the channel state information (CSI). In this case, large pilot symbols are required for obtaining an accurate CSI. As a result, the total transmission rate is degraded due to large number of pilot symbols transmission. To reduce this problem, in this paper, we propose time-frequency interferometry (TFI) for OFDM to achieve an accurate CSI. 電子情報通信学会(IEICE) 2007-11-01 eng journal article VoR https://hiroshima-cu.repo.nii.ac.jp/records/1304 http://www.ieice.org/jpn/trans_online/ http://www.ieice.org/jpn/trans_online/ AA10826239 1745-1337(online)|0916-8508(print) IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E90-A 11 2641 2645 https://hiroshima-cu.repo.nii.ac.jp/record/1304/files/E90A2641.pdf application/pdf 261.0 kB 2023-02-28