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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
: 2025-07-03
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
: 2025-07-03
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
: 2025-07-03
Size
: 79kb
User
:
werad
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