Joint time-frequency channel estimation method for OFDM systems based on compressive sensing

2014 ◽  
Author(s):  
Fang Yang ◽  
Wenbo Ding ◽  
Linglong Dai ◽  
Jian Song
Keyword(s):  
Channel Estimation ◽  
Compressive Sensing ◽  
Estimation Method ◽  
Ofdm Systems ◽  
Frequency Channel ◽  
Time Frequency

Joint Time-Frequency Channel Estimation for Time Domain Synchronous OFDM Systems

2013 ◽  
Vol 59 (1) ◽  
pp. 168-173 ◽  
Author(s):  
Linglong Dai ◽  
Zhaocheng Wang ◽  
Jun Wang ◽  
Zhixing Yang
Keyword(s):  
Channel Estimation ◽  
Time Domain ◽  
Ofdm Systems ◽  
Frequency Channel ◽  
Time Frequency

scholarly journals Iterative Channel Estimation for Nonbinary LDPC-Coded OFDM Signals

2011 ◽  
Vol 2011 ◽  
pp. 1-8
Author(s):  
Giacomo Bacci ◽  
Marco Della Maggiora ◽  
Marco Luise
Keyword(s):  
Channel Estimation ◽  
Estimation Method ◽  
Wiener Filter ◽  
Soft Information ◽  
Ofdm Systems ◽  
Channel Correlation ◽  
Frequency Channel ◽  
Receiver Complexity ◽  
Coded Ofdm ◽  
Ofdm Signals

This work deals with the issue of channel estimation in the context of non-binary LDPC-coded OFDM systems over doubly selective multipath channels. In particular, we show how to derive an iterative Wiener-filter-based estimation method using both time and frequency channel correlation and considering the particular characteristics of the channel code. The proposed algorithm can use either soft information or hard decisions fed back by the decoder to refine the channel estimation, so as to improve the system performance at the expense of an increased receiver complexity. Simulation results under typical working conditions are presented to compare the performance of the proposed method with respect to classical techniques.

A Low-Complexity Sparse Channel Estimation Method for OFDM Systems

2010 ◽  
Vol E93-B (8) ◽  
pp. 2211-2214
Author(s):  
Bin SHENG ◽  
Pengcheng ZHU ◽  
Xiaohu YOU ◽  
Lan CHEN
Keyword(s):  
Channel Estimation ◽  
Estimation Method ◽  
Low Complexity ◽  
Ofdm Systems ◽  
Sparse Channel Estimation ◽  
Sparse Channel

Time–Frequency Joint Sparse Channel Estimation for MIMO-OFDM Systems

2015 ◽  
Vol 19 (1) ◽  
pp. 58-61 ◽  
Author(s):  
Wenbo Ding ◽  
Fang Yang ◽  
Wei Dai ◽  
Jian Song
Keyword(s):  
Channel Estimation ◽  
Ofdm Systems ◽  
Sparse Channel Estimation ◽  
Time Frequency ◽  
Mimo Ofdm ◽  
Sparse Channel
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