Decision-Directed Channel Estimation for OFDM
Generic MMSE Decision Directed Channel Estimation for OFDM and MC CDMA
... (MMSE) Channel Impulse Response (CIR) estimator-aided Decision Directed Channel Estimation (DDCE) method, which is suitable for employment in both OFDM and MC-CDMA ...Domain ...
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Sample Spaced and Fractionally Spaced CIR Estimation Aided Decision Directed Channel Estimation for OFDM and MC CDMA
... of decision-directed channel estimation (DDCE) is analysed in the context of both OFDM and MC- CDMA ...different estimation methods suitable for both OFDM and MC-CDMA ...
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Decision Directed Channel Estimation Aided OFDM Employing Sample Spaced and Fractionally Spaced CIR Estimators
... Multiuser OFDM, decision directed channel estimation, impulse response estimation ...well-documented decision directed channel estimation (DDCE) ...
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RLS Adaptive Parallel Interference Cancellation Assisted Decision directed Channel Estimation for OFDM
... Single-User OFDM In order to demonstrate the applicability of the RLS algorithm to the problem of CIR-related tap prediction in the context of DDCE we will first focus on the single-user ...priori channel ...
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Parallel Interference Cancellation Assisted Decision Directed Channel Estimation for OFDM Systems using Multiple Transmit Antennas
... the K 0 largest tap variances from the decomposition Υ [f unif ](j) = U ˜ [f](j)H R [f](j) unif U ˜ [f](j) of the specific space–frequency corre- lation matrices of the channel with respect to U ˜ [f](j) = W. 14 ...
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Decision-Directed Channel Estimation Implementation for Spectral Efficiency Improvement in Mobile MIMO-OFDM
... each channel estimator is comparable only to other chan- nel estimators presented in this paper as the results depend on the used implementation method and ...other channel estimation implementations ...
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Improving MIMO-OFDM decision-directed channel estimation by utilizing error-correcting codes
... improves the channel estimate quality in terms of MSE. All solid lines, which denote the enhanced scheme, finally are below the dashed ones, which denote the basic DDCE approach, even for 16-QAM modulation which ...
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Multi User OFDM Employing Parallel Interference Cancellation Assisted Decision Directed Channel Estimation
... priori channel estimator’s ...priori channel transfer function estimator range of four taps was ...the estimation process due to the channel transfer function decorrelation between successive ...
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Decision Directed Channel Estimation Employing Projection Approximation Subspace Tracking
... the channel conditions encountered. The majority of existing advanced channel estimation schemes assume knowledge of the channel’s Power Delay Profile (PDP) in order to estimate the corresponding ...
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Advanced Channel Estimation for MIMO OFDM in Realistic Channel Conditions
... advanced decision-directed channel estimation scheme is proposed, which is suitable for employment in a wide range of multi-antenna multi-carrier systems as well as for communications over the ...
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Low Complexity Channel Estimation for OFDM and MC CDMA
... complexity decision-directed channel estimation method is pro- posed, which is suitable for a wide range of multi-carrier modulation schemes such as OFDM and ...wireless channel ...
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Smoothing techniques for decision-directed MIMO OFDM channel estimation
... accurate channel estimate at the receiver, which is gained ei- ther by evaluation of reference symbols which requires des- ignated resources in the transmit signal or decision-directed ...the ...
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Channel Estimation in OFDM systems
... 1.1.3 Packet-Based Versus Circuit-Switched Systems A wireless system can either be packet-based or circuit switched. In a packet based system the information bits are grouped and transmitted in packets, and transmission ...
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Channel Estimation with Improved OFDM
... paper channel estimation for orthogonal frequency division multiplexing (OFDM) is ...This channel estimation employs two training symbol in combination with polynomial fitting thus to ...
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Channel Estimation using OFDM for 4G
... parts channel estimation and channel tracking. In the channel estimation part, estimation of the channel transfer function in the preamble using MLS method is ...varying ...
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D BLAST OFDM with Channel Estimation
... and OFDM, that is, immu- nity to delay spread as well as huge transmission ...MIMO- OFDM systems and develop a channel estimator that up- dates the estimated channel parameters in a layerwise ...
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Review of Channel Estimation Techniques in OFDM
... channel estimation over LS estimate ...the channel to eliminate the major drawback of MMSE, which is ...pilot channel estimation, has been introduced to satisfy the need for equalizing ...
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Channel Estimation Algorithms in OFDM, A Review
... to channel estimation in OFDM (Orthogonal Frequency Division Multiplexing) using QAM (Quadrature Amplitude multiplexing) & PSK (Phase Shift Keying) modulation techniques used in OFDM for ...
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Blind Channel Estimation in Multicellular OFDM Systems
... blind channel estimation methods for OFDM systems can be classified as statistical or ...blind channel estimation include using correlation methods and cumulant ...traditional ...
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Channel Estimation for OFDM IDMA Receivers System
... A. Influence of the initial channel estimate In Section III three different pilot based algorithms were presented. Here, the effect of the initial estimates on the overall system performance is investigated, and ...
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