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iterative blind channel estimation

Trellis-Based Iterative Adaptive Blind Sequence Estimation for Uncoded/Coded Systems with Differential Precoding

Trellis-Based Iterative Adaptive Blind Sequence Estimation for Uncoded/Coded Systems with Differential Precoding

... a blind maximum-likelihood sequence estimator, reduced-complexity iterative adaptive trellis-based blind sequence estimators are ...proposed blind sequence estimators can be interpreted as ...

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The Extended Window Channel Estimator for Iterative Channel and Symbol Estimation

The Extended Window Channel Estimator for Iterative Channel and Symbol Estimation

... to channel estimation results in a well-known iterative channel- and-symbol estimator ...a channel estimator, and may provide approximate maximum-likelihood blind or semiblind ...

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Semi Blind Reception Using Joint Channel Estimation in IDMA Systems

Semi Blind Reception Using Joint Channel Estimation in IDMA Systems

... It requires computation of corrected channel coeffi- cients for each chip h ˆ k   j . However, this is possible, after some iterative decoding system (local). In the fol- lowing, we give the details of ...

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Iterative PDF Estimation-Based Multiuser Diversity Detection and Channel Estimation with Unknown Interference

Iterative PDF Estimation-Based Multiuser Diversity Detection and Channel Estimation with Unknown Interference

... the channel of UCCI can be estimated, and the di- versity loss of the linear MMSE receiver can be completely re- covered by means of joint maximum-likelihood (ML) detec- tion of the desired users and UCCI ...

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

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

... A blind adaptive scheme is proposed for joint maximum likelihood (ML) channel estimation and data detection of single- input multiple-output (SIMO) ...over channel and data is decomposed into ...

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A low complexity iterative channel estimation and equalisation scheme for (data-dependent) superimposed training

A low complexity iterative channel estimation and equalisation scheme for (data-dependent) superimposed training

... equalisation. Channel estimation techniques fall into three main categories: blind, semi-blind and ...for channel estimation is allocated an empty time slot in the transmitted ...

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Maximum Likelihood Blind Channel Estimation for Space Time Coding Systems

Maximum Likelihood Blind Channel Estimation for Space Time Coding Systems

... with blind channel estimation ...the estimation of channel in- formation to improve performance of space-time coded sys- tems operating on fading channels [4, 5, 6, ...of blind ...

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Iterative Joint Channel Estimation and Symbol Detection for Multi User MIMO OFDM

Iterative Joint Channel Estimation and Symbol Detection for Multi User MIMO OFDM

... transmitter-receiver channel links have to be estimated si- multaneously for each ...numerous channel estimation techniques have been proposed for MIMO-OFDM systems, using blind ...

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Iterative scattered-based channel estimation method for OFDM/OQAM

Iterative scattered-based channel estimation method for OFDM/OQAM

... We have a tradeoff to make between either adding no additional data and gain in CE in OFDM/OQAM or having higher spectral efficiency without gain in CE. We can also choose to add additional data for some pilots and no ...

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Enhanced Iterative Detection of Hierarchically Modulated Signals using VB-EM Algorithm

Enhanced Iterative Detection of Hierarchically Modulated Signals using VB-EM Algorithm

... improved iterative receiver based on variational Bayesian expectation-maximization (VB-EM) scheme for semi-blind joint channel estimation and data detection based on bit-interleaved coded ...

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

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

... In this section, the performance of the proposed technique is illustrated by means of some simulation examples. All the results have been obtained by averaging 5000 independent experiments, where the MIMO channel ...

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Joint Maximum Likelihood Channel Estimation and Data Detection for MIMO Systems

Joint Maximum Likelihood Channel Estimation and Data Detection for MIMO Systems

... propose blind and semi-blind joint maximum likelihood (ML) channel and data estimation schemes for MIMO ...for channel and data estimation is decomposed into two ...optimal ...

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Robust Blind Frequency and Transition Time Estimation for Frequency Hopping Systems

Robust Blind Frequency and Transition Time Estimation for Frequency Hopping Systems

... Frequency hopping spread spectrum (FHSS) techniques are widely used in military communications for combating narrowband interference and for security purposes. The two parameters that are required for the ...

13

Modulation Recognition for MIMO Communications

Modulation Recognition for MIMO Communications

... In this study, we propose a solution for the blind recognition of the modulation in MIMO-SM systems. Section 2 presents the signal model and the assumptions. In Section 3, we develop the optimal solution under the ...

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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 ...

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TIME FREQUENCY TRAINING ESTIMATION METHOD OF OFDM FOR MOBILE LARGE SCALE MIMO SYSTEMS

TIME FREQUENCY TRAINING ESTIMATION METHOD OF OFDM FOR MOBILE LARGE SCALE MIMO SYSTEMS

... joint channel estimation for TFTOFDM in large-scale MIMO systems over the Brazil D channel with the receiver velocity of 5 ...based iterative channel estimation/data detection ...

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Iterative Frequency-Domain Channel Estimation and Equalization for Ultra-Wideband Systems with Short Cyclic Prefix

Iterative Frequency-Domain Channel Estimation and Equalization for Ultra-Wideband Systems with Short Cyclic Prefix

... the channel) is assumed to be inserted between transmitted ...structures. Iterative reconstruction of the missing CP is proposed and its performance on the FDE is evaluated in [14] again for SC ...FD ...

9

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 channel estimation of MIMO ...MIMO channel matrix is decomposed into whitening and rotation ...using blind symbols and the rotation matrix is estimated using few orthogonal pilot ...semi ...

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Transmit Delay Structure Design for Blind Channel Estimation over Multipath Channels

Transmit Delay Structure Design for Blind Channel Estimation over Multipath Channels

... for blind channel estimation and ...antennas, blind channel estimation and equalization can be carried out based only on the second-order statistics of symbol-rate sampled ...

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

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

... – Channel Estimation (CE) in multicarrier system especially in Orthogonal Frequency Division Multiplexing (OFDM) systems has become an important technique in wireless communication to reduce the overall ...

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