[PDF] Top 20 Application of a joint and iterative MMSE based estimation of SNR and frequency selective channel for OFDM systems
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Application of a joint and iterative MMSE based estimation of SNR and frequency selective channel for OFDM systems
... the SNR thanks to the MMSE criterion, which requires an estimation of the frequency-selective ...the channel esti- mation, the noise variance is ...one estimation feeds ... See full document
11
Compressive sensing based joint frequency offset and channel estimation for OFDM
... Orthogonal frequency division multiplexing (OFDM) has become a standard multi-carrier modulation technique for broadband wireless communication networks due to its resistance to interblock interference ... See full document
13
Iterative joint frequency offset and channel estimation for OFDM systems using first and second order approximation algorithms
... our first order method with L=1 and λ=1 yield unaccept- able performance results. The EM-based algorithm totally fails to perform and therefore is out of the pic- ture. However, it is to be noted that, for a given ... See full document
10
A Low-Complexity Time-Domain MMSE Channel Estimator for Space-Time/Frequency Block-Coded OFDM Systems
... Channel estimation for transmit diversity OFDM sys- tems has attracted much attention with pioneering works by Li et ...robust channel estimator for OFDM systems with transmitter ... See full document
14
Joint frequency offset, time offset, and channel estimation for OFDM/OQAM systems
... between estimation accuracy and computational ...obtained based on the average of 500 burst transmissions of size 64 × 54 with the scattered pilot distribution as described in Section ...low SNR ... See full document
19
Improving Performance and Detection Schemes of Mimo-Ofdm Systems in the Presence of Phase Noise and Doubly-Selective Fading Where Channel is Both Time and Frequency Selective Offia Innocent.S, Udeh Ikemefuna James, Eke J
... and OFDM symbol index are neglected. The performance results of MIMO- OFDM systems with various MSE values are shown in ...proposed MMSE- based phase noise suppression scheme and the ... See full document
7
Iterative scattered-based channel estimation method for OFDM/OQAM
... orthogonal frequency division multiplexing (OFDM) are more and more used since they provide a good trade-off between higher bit rate and ...the channel is generally used with OFDM to preserve ... See full document
14
Iterative Joint Channel Estimation and Multi User Detection for Multiple Antenna Aided OFDM Systems
... blind channel estimation tech- niques have been proposed for MIMO-OFDM systems [7]– ...[18], iterative Least Squares (LS) [19], Second- Order Statistics (SOS) based SubSpace (SS) ... See full document
11
Sparse massive MIMO OFDM channel estimation based on compressed sensing over frequency offset environment
... in channel impulse response (CIR) can be regarded as ...the channel delays of all transmit antenna can be consid- ered to be consistent due to the small transmission base station ...the channel ... See full document
13
1. A robust and efficient channel estimation scheme for ofdm systems in frequency selective fading channels
... orthogonal frequency division multiplexing (OFDM) is becoming a vital in wireless communication systems like 3G, 4G and even in 5G ...transmission.Nevertheless,these systems should be capable ... See full document
7
Complexity Reduction Techniques for MMSE Channel Estimator in OFDM
... of MMSE, simplified LS (SLS) and SMMSE estimators are proposed in paper ...conventional MMSE channel estimator while at the same time maintaining the high performance under critical time and ... See full document
7
Joint CFO Estimation and Data Detection in OFDM systems
... performing joint estimation that was based on a linear search method was ...updated based on the minimum mean-squared error (MMSE) ...an iterative EM- based algorithm that ... See full document
89
Iterative Joint Channel Estimation and Symbol Detection for Multi User MIMO OFDM
... Orthogonal Frequency Di- vision Multiplexing (OFDM) systems have recently attracted substan- tial research interest, because the employment of multiple antennas offers an opportunity to exploit both ... See full document
5
Analysis of SOSTTC-OFDM based on Least Squares Method
... (i.e. frequency non-selective fading) channels without temporal ...fading channel SOBC in the space and time domain show an improved coding gain and provide full diversity when compared with both ... See full document
6
Time-Frequency Training OFDM: A Novel Technique
... and OFDM data ...the OFDM block length is usually large such interference, cannot be totally eliminated even when the channel estimation is ...the OFDM data block has to be calculated ... See full document
8
Compressed sensing based channel estimation for ACO OFDM visible light communications in 5G systems
... different channel es- timation techniques is simulated and later the proposed scheme performance is analyzed on the basis of the key VLC ...of estimation signals is based on the step ...the ... See full document
14
A time-domain control signal detection technique for OFDM
... orthogonal frequency division multiplexing (OFDM) architecture, this paper studies block-level detection of ...An OFDM architecture is considered because it is the adopted physical layer technology ... See full document
10
Performance Evaluation of MMSE and LS Channel Estimation in OFDM System
... of frequency selective finite impulse response (FIR) ...of channel memory at the transmitter ...the frequency selective channels into parallel flat faded sub- channels, each one with ... See full document
5
MIMO OFDM with Enhanced Channel Estimation based on DFT Interpolation
... LS and MMSE estimator have been implemented with and without DFT-based estimation technique to estimate the channel effect for STBC-MIMO-OFDM system and compare their [r] ... See full document
5
Iterative MMSE PIC Detection Algorithm for MIMO OFDM Systems
... with Iterative PIC equalizers for case of pure equalization compared ZF, MMSE, and PIC ...scheme Iterative PIC is produced after ...However, Iterative PIC detection scheme is better in the ... See full document
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