Search - decision directed channel estimation

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[Program doc] CE DL : 0: DMBT-清华信道估计算法 [Fang Yang] Novel decision-directed channel estimation method for TDS-OFDM system [C]2008 (Tsinghua)-[Fang Yang] Novel decision-directed channel estimation method for TDS-OFDM system [C]2008 (Tsinghua)
Date : 2025-07-04 Size : 606kb User : 秦问
[Communication-Mobile] Channel-estimation DL : 0: 基于信道编码直接判决解调算法的ofdm信道估计-In connection with coded decision directed demodulation channel estimal method for coherent demodulation of ofdm
Date : 2025-07-04 Size : 188kb User : tianyu
[Program doc] Channel-Estimation-for-DBLAST-OFDM-Systems DL : 0: Abstract—Diagonal Bell Laboratories Layered Space-Time (DBLAST) structure offers a low complexity solution to realize the attractive capacity of Multiple-input and multiple-output (MIMO) systems. In this paper, we apply D-BLAST in orthogonal frequency division multiplexing (OFDM) systems and address the issue of channel estimation. Different other MIMO-OFDM, where symbols at all tones are always available for decision-directed channel estimation, in D-BLAST OFDM, we update estimated channel parameters each time a layer is detected with a least square (LS) approach, using a pieced combination of received signals at previous and current OFDM blocks. The initial estimate is further refined by a robust estimator to exploit the time correlation of channel parameters among OFDM blocks. Computer simulation results show the performance improvement over block-wise channel estimation. It is also shown that D-BLAST with proposed channel estimation is robust to fast fading of channel parameters.-Abstract—Diagonal Bell Laboratories Layered Space-Time (DBLAST) structure offers a low complexity solution to realize the attractive capacity of Multiple-input and multiple-output (MIMO) systems. In this paper, we apply D-BLAST in orthogonal frequency division multiplexing (OFDM) systems and address the issue of channel estimation. Different other MIMO-OFDM, where symbols at all tones are always available for decision-directed channel estimation, in D-BLAST OFDM, we update estimated channel parameters each time a layer is detected with a least square (LS) approach, using a pieced combination of received signals at previous and current OFDM blocks. The initial estimate is further refined by a robust estimator to exploit the time correlation of channel parameters among OFDM blocks. Computer simulation results show the performance improvement over block-wise channel estimation. It is also shown that D-BLAST with proposed channel estimation is robust to fast fading of channel parameters.
Date : 2025-07-04 Size : 79kb User : werad