scholarly journals LMMSE channel estimation for OFDM systems with channel correlation function selection

2021 ◽  
Author(s):  
Kai Mei ◽  
Jun Liu ◽  
Xiaoran Liu ◽  
Jun Xiong ◽  
Xiaoying Zhang ◽  
...  
Keyword(s):  
Correlation Function ◽  
Channel Estimation ◽  
Ofdm Systems ◽  
Channel Correlation ◽  
Function Selection

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.

Channel Estimation and Symbol Detection with ICI Cancellation Based on Superimposed Training for OFDM Systems

2012 ◽  
Vol E95.B (9) ◽  
pp. 2926-2930
Author(s):  
Qinjuan ZHANG ◽  
Muqing WU ◽  
Qilin GUO ◽  
Rui ZHANG ◽  
Chao Yi ZHANG
Keyword(s):  
Channel Estimation ◽  
Ofdm Systems ◽  
Superimposed Training ◽  
Symbol Detection ◽  
Ici Cancellation

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
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