Fading Mitigation Technique Based on Semiblind Channel Estimation and Adaptive Transmission Rate

2015 ◽  
Author(s):  
J. H. Pech-Carmona ◽  
K. Vazquez Ascencion
Keyword(s):  
Channel Estimation ◽  
Transmission Rate ◽  
Adaptive Transmission ◽  
Semiblind Channel Estimation ◽  
Mitigation Technique

scholarly journals A Comprehensive Review on Channel Estimation in OFDM System

2019 ◽  
Vol 5 (3) ◽  
pp. 6 ◽  
Author(s):  
Neha Dubey ◽  
Ankit Pandit
Keyword(s):  
Channel Estimation ◽  
Mean Square Error ◽  
Orthogonal Frequency Division Multiplexing ◽  
Transmission Rate ◽  
Minimum Mean Square Error ◽  
Estimation Method ◽  
Least Square ◽  
Estimation Methods ◽  
Mean Square ◽  
Mimo Ofdm

In wireless communication, orthogonal frequency division multiplexing (OFDM) plays a major role because of its high transmission rate. Channel estimation and tracking have many different techniques available in OFDM systems. Among them, the most important techniques are least square (LS) and minimum mean square error (MMSE). In least square channel estimation method, the process is simple but the major drawback is it has very high mean square error. Whereas, the performance of MMSE is superior to LS in low SNR, its main problem is it has high computational complexity. If the error is reduced to a very low value, then an exact signal will be received. In this paper an extensive review on different channel estimation methods used in MIMO-OFDM like pilot based, least square (LS) and minimum mean square error method (MMSE) and least minimum mean square error (LMMSE) methods and also other channel estimation methods used in MIMO-OFDM are discussed.

scholarly journals Wavelet-Based Semiblind Channel Estimation for Ultrawideband OFDM Systems

2009 ◽  
Vol 58 (3) ◽  
pp. 1302-1314 ◽  
Author(s):  
S.M.S. Sadough ◽  
M.M. Ichir ◽  
P. Duhamel ◽  
E. Jaffrot
Keyword(s):  
Channel Estimation ◽  
Ofdm Systems ◽  
Semiblind Channel Estimation
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