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channel blind estimation algorithm

Blind channel estimation using redundant precoding : new algorithms, analysis, and theory

Blind channel estimation using redundant precoding : new algorithms, analysis, and theory

... ported blind block synchronization algorithms, we find that block synchronization algorithms can be connected with existing blind channel estimation/equalization algorithms that exploit matrix ...

212

Improved Channel Estimation Algorithm for OFDM System over Slow Fading Rayleigh Channel

Improved Channel Estimation Algorithm for OFDM System over Slow Fading Rayleigh Channel

... fading channel can be used in the design for computing the impulse response of the channel in case of OFDM ...2-D channel estimators such as Weiner filter have optimum ...2-D estimation ...

5

A new blind algorithm for channel estimation in OFDM based amplify and forward two way relay networks

A new blind algorithm for channel estimation in OFDM based amplify and forward two way relay networks

... (DA-LS) channel estimates over data ...the channel statistics (KCS) is available. On the other hand, channel estima- tion can be accomplished by elaborating raw estimates in the time domain using a ...

15

Blind Channel Estimation and Equalization for Multiple FIR Channels

Blind Channel Estimation and Equalization for Multiple FIR Channels

... detection algorithm based on the examination of an indicator function con- structed from initial channel estimates containing an addi- tional common polynomial ...the channel estimation algo- ...

8

Blind Channel Estimation for Space Time Coded WCDMA

Blind Channel Estimation for Space Time Coded WCDMA

... the proposed algorithm depend on the code matrix T. Here, we considered the identifiability condition through simula- tion. We evaluated the condition number of the code matrix T as the number of users increases, ...

13

Blind Joint Maximum Likelihood Channel Estimation and Data Detection for SIMO Systems

Blind Joint Maximum Likelihood Channel Estimation and Data Detection for SIMO Systems

... the blind joint ML channel estimation and data detection for the SISO system, the RWBS algorithm achieved a similar convergence speed as the GA and was seen to be more ac- curate than the ...

5

BLIND CHANNEL ESTIMATION AND MULTIUSER DETECTION FOR MULTI-RATE CDMA COMMUNICATIONS

BLIND CHANNEL ESTIMATION AND MULTIUSER DETECTION FOR MULTI-RATE CDMA COMMUNICATIONS

... Note that in DS/CDMA systems based on short spreading codes, where a specific spreading code is selected for a particular user and then repeated for each data symbol of that user, the MAI is clearly cyclostationary ...

136

BER Performance of NLMS Adaptive Channel Estimation Technique for MIMO-OFDM Systems

BER Performance of NLMS Adaptive Channel Estimation Technique for MIMO-OFDM Systems

... adaptive, blind multiuser detector with integrated channel estimation for digital wireless networks in binary phase shift key (BPSK) with normalized least mean square (NLMS) is developed and ...

7

Statistical covariance-matching based blind channel estimation for zero-padding MIMO–OFDM systems

Statistical covariance-matching based blind channel estimation for zero-padding MIMO–OFDM systems

... subspace algorithm is proposed to blindly iden- tify the channels in [20], and is then generalized to MIMO cases ...improve channel estimation/equalization perfor- mances against harsh SNR ...

9

Adaptive Channel Estimation for Turbo Decoding

Adaptive Channel Estimation for Turbo Decoding

... filtering algorithm with initial pilot ...in-service estimation of the channel reliability factor is proposed, which uses the statistical computations of the block observations to get BER performance ...

73

Joint Maximum Likelihood Channel Estimation and Data Detection for MIMO Systems

Joint Maximum Likelihood Channel Estimation and Data Detection for MIMO Systems

... RWBS algorithm is a simple yet efficient global search ...genetic algorithm (GA) and the RWBS algorithm were used to find the ML channel and data estimation for single-input ...

5

Maximum Likelihood Blind Channel Estimation for Space Time Coding Systems

Maximum Likelihood Blind Channel Estimation for Space Time Coding Systems

... vergent algorithm for this nonlinear cost function is un- ...Baum-Welch algorithm which reduces computational bur- den ...Baum-Welch algorithm although iter- ative in nature, is guaranteed under ...

10

Code Combination for Blind Channel Estimation in General MIMO-STBC Systems

Code Combination for Blind Channel Estimation in General MIMO-STBC Systems

... a blind channel estimation technique for multiple-input multiple-output (MIMO) space-time block coded (STBC) systems has been ...the channel, up to a real scalar, within a finite number of ...

12

Semi Blind Reception Using Joint Channel Estimation in IDMA Systems

Semi Blind Reception Using Joint Channel Estimation in IDMA Systems

...    (3) where  k is the distortion including interference plus noise in r(j) with respect to user-k. The mean and the variance functions are noted by E(.) and Var(.) respec- tively.  k   j can be approximated by a ...

6

A New Approach to Semi blind Channel Estimation for MIMO Wireless Communication System

A New Approach to Semi blind Channel Estimation for MIMO Wireless Communication System

... In this new approach, very few training symbols are used to obtain initial estimate of the channel matrix. The whitening matrix W is obtained using blind output symbols. The rotation matrix Q is however ...

7

Mean Square Error of Blind Channel Estimation Using a Constant Modulus Algorithm

Mean Square Error of Blind Channel Estimation Using a Constant Modulus Algorithm

... LS estimation assumes independent components of the frequency response which does not use the correlation properties of the channel making it sensitive to ...

6

Pilot based Channel Estimation of OFDM aided with KGMO Algorithm

Pilot based Channel Estimation of OFDM aided with KGMO Algorithm

... based channel estimation. Pilot based channel estimation is called training based channel ...to blind channel estimation, training based channel ...

6

Experiments with repeating weighted boosting search for optimization in signal processing applications

Experiments with repeating weighted boosting search for optimization in signal processing applications

... optimization algorithm has been ...and blind joint ML channel and data estimation), the proposed global search algorithm is seen to be as efficient as the GA and ASA in terms of global ...

12

Fast Adaptive Blind MMSE Equalizer for Multichannel FIR Systems

Fast Adaptive Blind MMSE Equalizer for Multichannel FIR Systems

... new blind minimum mean square error (MMSE) equalization algorithm of noisy multichannel finite impulse re- sponse (FIR) systems, that relies only on second-order ...proposed algorithm offers two ...

17

An improved method of 
		mimo ofdm 
		channel estimation using chaotic pilot sequence

An improved method of mimo ofdm channel estimation using chaotic pilot sequence

... Wireless Channel estimation methods are proposed. Blind channel estimation and pilot channel estimation have been performed on Rayleigh and Rician channels for SISO-OFDM ...

6

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