Complexity Analysis for Turbo Channel Estimation
A Low-Complexity LS Turbo Channel Estimation Technique for MU-MIMO Systems
... (ML) estimation, turbo channel estimation, singular value decomposition ...NTRODUCTION Turbo receiver frameworks ...systems. Turbo channel estimation algorithms can ...
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Adaptive Channel Estimation for Turbo Decoding
... the turbo decoder, as its ...adaptive channel filter [13], while some takes only the soft information as its input of the adaptive filter ...and complexity of the turbo ...updated ...
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Reduced Complexity In Phase/Quadrature Phase M QAM Turbo Equalization Using Iterative Channel Estimation
... the channel encoding, modulation and turbo equalization operations has been ignored, although practical systems have a processing delay, which allows them to complete their operations “just” before they ...
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Combined Channel Estimation and Turbo Equalization on Wireless Channels
... (FD) turbo equal- ization schemes assume ideal channel state information (CSI) is ...FD turbo linear equalization with time-domain channel estimation is developed and evaluated for ...
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Combined Channel Estimation and Turbo Equalization for Wireless Channels
... to turbo equalization using estimated CSI was observed to be smaller than the gain obtained with perfect ...the channel and the signal constellation of ...the turbo equalizer requires more accurate ...
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Low-complexity channel estimation for wireless OFDM systems
... In particular, we derive exact expressions for time and frequency domain channel estimation error (interpolation error) in terms of channel correlation function, chann[r] ...
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Low Complexity Channel Estimation for OFDM and MC CDMA
... proposed channel estimation method is de- picted in Figure 1. Our channel estimator is constituted by what we refer to as an a posteriori decision-directed CIR estimator followed by an a priori CIR ...
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Low Complexity Channel Estimation for OFDM and MC CDMA
... In this paper we have proposed a channel estimation method, which is based on a low-complexity decision directed MMSE FS-CLR estima- tor combined with a robust time-domain [r] ...
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Channel estimation strategy for LPWA transmission at low SNR: application to Turbo-FSK
... perfect channel estimation or Signal-to-noise (SNR) levels that are higher than the SNR levels considered for these ...a channel estimation strategy based on a specifically adapted pilot ...
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Turbo multiuser detection with integrated channel estimation for differentially coded CDMA systems.
... 5. CO N CLU DING R EM AR K S a wide gap between the performance of the Log-MAP and Max Log-MAP turbo equalizers. The only drawback to the proposed algorithm is its sensitivity to signal to noise ratio. While the ...
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A Review of complexity method for wireless Channel Estimation using a BEM
... Our channel estimation method differs in its ability to estimate fast time-varying wireless channel since pilot tones are inserted into each OFDM block, and in its explicit relation with ...
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Low-Complexity Approximations for LMMSE Channel Estimation in OFDM/OQAM
... (LMMSE) channel estimation method for orthogo- nal frequency division multiplexing/offset quadrature amplitude modulation (OFDM/OQAM) ...the complexity of the LMMSE estimator without degrading the ...
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Performance and Complexity Comparison of Channel Estimation Algorithms for OFDM System
... and complexity of two algorithms, LSE and LMMSE, is evaluated in terms of MSE and SER, based on CIR samples and channel ...or channel taps but after a certain value of these factors, only ...
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Turbo Processing for Joint Channel Estimation, Synchronization, and Decoding in Coded MIMO OFDM Systems
... the turbo pro- ...CFO/SFO/CIR estimation and tracking can be achieved without the need of overhead pilot tones, that is, removing significant transmission e ffi ciency loss and enhancing the spectral e ffi ...
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Block Transmissions over Doubly Selective Channels: Iterative Channel Estimation and Turbo Equalization
... block turbo equalizer for SC systems with average approximation, for both perfect and estimated ...block turbo equalizer achieves about 1 ...considered channel has a uniform power- delay profile, it ...
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Generic Reduced Complexity MMSE Channel Estimation for OFDM and MC CDMA
... pilot information by using the detected subcarrier symbols as an a posteriori reference signal. The employment of this method allows us to reduce the number of pilot symbols required. A basic component of the DDCE ...
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Performance and Complexity Improvement of Training Based Channel Estimation in MIMO Systems
... based channel estimation method has been proposed for MIMO systems, and a detailed analysis and computer simulations are ...LS estimation, showing a significant improvement in terms of BER ...
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Low-complexity joint channel estimation and list decoding of short codes
... I. I NTRODUCTION The interest in designing wireless communication systems with short information blocks, up to a few tens of bits, has been increasing recently due to the rise of applications characterized by strict ...
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Soft-Decision-Driven Sparse Channel Estimation and Turbo Equalization for MIMO Underwater Acoustic Communications
... The arrival paths fluctuate very rapidly. It is important to notice that the channel impulse response is sparse. C. Performance versus the Training Overhead In order to investigate the convergence performance of ...
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A Novel Data-Aided Channel Estimation with Reduced Complexity for TDS-OFDM Systems
... MSE of the proposed data-aided channel estimation using 1-D Moving Average and 1-D Wiener filtering with QPSK, in the TU-6 channel and SFN channels with velocity of 30 km/h... of B OFDM [r] ...
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