channel estimation

Meanwhile, wavelet transform idea is applied to this paper and a new wavelet de-noising method in OFDM channel estimation is proposed.

Channel Estimation technique is one of the key techniques in OFDM communication systems.

A channel estimation scheme for a multi-input multi-output orthogonal frequency-division multiplexing (MIMO-OFDM) system was presented.

A multipath channel is considered and a given level for the channel estimation error is assumed.

Channel estimation methods can be broadly divided as the data symbol auxiliary and blind channel estimation.

A robust zero-forcing receiver in the Multiple Input Multiple Output (MIMO) channel with a channel estimation error is presented.

at last, we study Wiener filter based channel estimation algorithm, showing the reasons of its excellent estimation performance.

Channel estimation technique is one of the key techniques in OFDM systems.

A link-level modules design figure, a channel estimation module structure figure and a CE flowchart are given.

A closed-form expression for the SNR at the output of the equaliser that employs the results of the channel estimation is derived.

Simulation results show that the layered detection and iteration detection algorithms are robust to channel estimation error.

Aiming at the two great challenges: bandwidth efficiency and multi-paths fading, we propose a blind channel estimation algorithm.

A blind channel estimation method is presented for the Multiple-Input-Multiple-Output (MIMO) CDMA system employing long spreading codes.

Due to no channel estimation required for rayleigh fading channel, quotient coded QAM has lower receiver complexity.

The training sequence of channel estimation in frequency domain should have flat spectrum, which can estimate channel fast and exactly.

Channel estimation is an important part for OFDM systems performing coherent detection.

The channel estimation error and BER performances of different algorithm under different environments are compared.

The carrier frequency offset estimation algorithm and channel estimation algorithm are studied and implemented in this paper.

A channel estimation algorithm is proposed for OFDM wireless communication system under time-varying multipath channel.

The algorithm achieves the initial accurate channel estimation by preamble training sequences of wireless frame head.

Firstly, it gives the classifiable explanation and deeply studied some typical channel estimation methods.

Simulation results verified the validity of channel estimation algorithm and pilot structure.

This paper mainly focuses on the algorithms for channel estimation in OFDM system. It also simulates and analyzes by computer.

All of these make the reality of semiblind channel estimation to be possible.

And the research of channel estimation algorithms with high performance and low complexity is important in communication field.

In this paper, the existed pilot-assisted channel estimation algorithms in OFDM systems are investigated in detail.

Modified MIMO channel estimation algorithm based on superimposed training sequence was proposed for the frequency selective channel.

A novel OFDM channel estimation algorithm is proposed by exploiting the sparsity of channel impulse response.

Channel estimation plays a quite important role in the LTE system which requires high data rate, high quality and high mobility.

Channel estimation is an important part for coherent detection.

Besides that, we apply iterative DCT channel estimation in LTE Uplink channel estimator.

Based on the channel model of MIMO-OFDM, the basic and improved principles of two channel estimation algorithms: LS and MMSE are given.

This channel estimation method can rapidly, effectively and adaptively estimates the channel impulse response.

A new blind channel estimation technique is proposed for OFDM systems by exploiting receive diversity.

In the end discusses MIMO channel estimation in frequency-selective fading, and investigates the design of training sequence.

This paper investigates an advanced channel estimation method under the wireless environment with multipath and noise.

Subspace algorithm based on the semi-blind system ofdm estimate, and I hope to channel estimation colleagues help!

There are many channel estimation algorithms proposed in recent years which could be sorted into two kinds.

The channel estimation algorithms for LTE downlink OFDMA system are introduced in detail.

With the developed system as a research platform, channel estimation and OFDM symbol timing are carried out.

This thesis focuses on the channel estimation for MIMO-OFDM systems in wireless fading channels.

So this thesis is engaged in the research of channel estimation technology for LTE downlink OFDMA system.

Channel estimation method using decision feedback.

There are main two kind of channel estimation methods: pilots-aided channel estimation and blind channel estimation.

This paper researches the channel estimation and equalization of DMB-TH and verifies them on FPGA.

A semi-blind channel estimation algorithm for MIMO-OFDM system is discussed mainly in this paper.

This thesis focuses on the channel estimation and pilot design technology in OFDM-based B3G systems under multi-cell environment.

By unified signal model of antenna array Multicarrier DS-CDMA system, the subspace-based blind channel estimation is achieved.

We apply sparse signal processing to OFDM channel estimation under impulse noise.

Differential detection is robust and requires no channel estimation, but there is a performance loss compared to coherent one.

Based on this technique, an improved code-aided channel estimation algorithm is presented in this thesis.

This paper proposed a channel estimation algorithm that was suitable for short wave broadband OFDM system.

It also points out that channel estimation is necessary for WDP system which wants to communicate at near capacity rate in fading channel.

There are several channel estimation technologies. And adaptive channel estimation is a branch of them.

The correlation is optionally corrected according to the mean channel estimation signal-to-noise ratio.

A subspace-based channel estimation is studied for Multicarrier DS-CDMA system with antenna array.

Channel estimation in OFDM and the spreading code in CDMA are researched in this paper.

This paper presented a new approach to blind channel estimation and equalization based on Second Order Statistics(SOS).

This paper proposes a subspace-based semiblind channel estimation method in MC-CDMA systems.

In addition, the design must also take channel estimation and equalization issues into account.

A novel channel estimation algorithm is proposed for MB-OFDM UWB systems based on channel shortening.

At last, a two-dimension algorithm is employed in B3G downlink for channel estimation.

Then channel estimation is studied two key ways: The first method is based on pilot channel estimation method.

In this thesis, we study the channel estimation methods based on the superimposed pilots.

The second method is based on the virtual sub-carrier subspace blind channel estimation method.

Recently, more and more researches are focused on channel estimation techniques of OFDM communication systems.

In order to improve reduce the effect of inter symbol interference, channel estimation was studied in SC-FDE systems.

The channel estimation based on pilot was studied in this paper.

An research of two kinds of channel estimation method based on comb-type-pilot and block-type-pilot has been taken in-depth.

Serial interference cancellation based channel estimation for improving the estimation accuracy in an intra-frequency network

code division multiple access CDMA ; channel estimation ; delay estimation ; multi-antenna technology ; synchronization algorithm

Channel-estimation based hypothesis-feedback adaptive equalization for underwater acoustic communications

Analysis of the generalized channel of the wireless OFDM system and blind adaptive channel estimation algorithm for the OFDM system

Research on channel estimation algorithms for OFDM system and its applications in low-voltage power line communication

Nonlinear Channel Estimation Algorithm for Orthogonal Frequency Division Multiplexing Systems

Performance Analysis of Space-Time Transmit Diversity with Imperfect Channel Estimation over Correlated Nakagami Fading Channels

Comparative Study on Error Performances of two Pilot-aided Channel Estimation Methods in OFDM Systems

A Novel Estimation Method of Maximum Doppler Frequency in Rake Receiver and its Application in Channel Estimation

Performance Compare of the Relationship between ML and MAP Channel Estimation with Pilot Symbol Length in the Flat Fading Channel

Comparison of Two Channel Estimation Interpolation Methods

Channel estimation in single-carrier systems with space-time block coded transmission over frequency-selective fading channels

Channel Estimation Methods of Digital Television Terrestrial Broadcasting

Subspace-Tracking Channel Estimation for Training-Sequence-Based OFDM Systems with Transmitter Diversity

Superimposed pilot based channel estimation and equalization for single carrier block transmission

A Channel Estimation Method for Orthogonal Frequency Division Multiplexing Systems by Tracking Delay-Subspace

Improvement of Channel Estimation Using Regression Algorithm for Wideband Code Division Multiple Access

Orthogonal Frequency Division Multiplexing Channel Estimation Method Based on Accelerate Expectation Maximization Algorithm

A Blind Channel Estimation Algorithm for Orthogonal Frequency Division Multiplexing Systems

Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm

Frequency-offset Synchronization and Channel Estimation for OFDM-Based Transmission system

The device includes: several receiving and sending channel estimation devices to output the channel estimation;

Blind Channel Estimation Based on Dissymmetrical Modulation Constellation for Orthogonal Frequency Division Multiplexing Systems

High Efficient and Precise OFDM Carrier Frequency Acquisition and Channel Estimation Algorithms

Multi-Access Interference Cancellation of Navigation Receiver by Channel Estimation

A Channel Estimation and Equalization Method for Approximate Parallel Receiver over Time-varying Channels

Subspace-Tracking Channel Estimation for Pilot-Symbol-Aided OFDM Systems with Transmitter Diversity

A New Parallel-type Multi-Stage Interference Cancellation Algorithm with Iterative Channel Estimation

Improving the Performance of OFDM Channel Estimation through Subspace Projecting and Tracking

Blind Uplink Space-Frequency Channel Estimation for Multi carrier Code Division Multiple Access Systems

Impact on performance of ST-FSK due to imperfect channel estimation of channel state information

An Adaptive Channel Estimation Algorithm for WCDMA Downlink Channel and Performance Analysis

Performance Comparison of Pilot-symbol-aided Channel Estimation Methods for Wireless OFDM Systems

Low-complexity channel estimation in high speed OFDM underwater acoustic communication

A Sparse Channel Estimation Algorithm for Digital Television OFDM Transmission Systems

Deterministic Blind OFDM Channel Estimation Using Receiver Diversity

Improved LMS adaptive channel estimation algorithm for OFDM system in low voltage power line communication

Direct blind multiuser detection without channel estimation and equalizer design

Wiener LMS channel estimation and tracking algorithm for OFDM systems with transmitter diversity

Channel Estimation Using Data-dependent Superimposed Training

A Pilot Subcarrier-based Joint Frequency Offset Correction and Channel Estimation Method for OFDM Systems

Characteristics Research on a Channel Estimation Algorithm in Ultra-Wide Band System

Channel estimation arithmetic using special pilot sequence in wireless sensor network

Investigation and Implementation of Pilot-Aided Channel Estimation Approach in OFDM System

A Frequency Domain Error Analysis for Channel Estimation with Variable Averaging Intervals

Blind Uplink Channel Estimation and Multiuser Detection in Code Division Multiple Access System

A Channel Estimation Algorithm and its Improvement for DSSS Systems

Channel estimation in single-carrier frequency domain equalization system

Research of Channel Estimation Using Linear Interpolation Technology in OFDM Systems

An enhanced iterative joint channel estimation and symbol detection algorithm for OFDM systems

Blind Channel Estimation for Single-Carrier Block Transmission by Exploiting Zero-Padding

MIMO Channel Estimation Using Superimposed Training Sequence

Adaptive fuzzy filter algorithm for LEO communication channel estimation

Optimal Pilot Interval Design for Linear Interpolated Channel Estimation

Analysis of Interpolation Algorithms in Piloted Channel Estimation for OFDM Systems

Improved blind channel estimation algorithm for OFDM by exploiting virtual carriers

A Burst Synchronization and Channel Estimation Scheme for the Multi-antenna OFDM System

Channel Estimation Optimization and Lower Bound of Capacity Analysis in MIMO System with Colored Noise

An Iterative Algorithm of Joint Least-Squares Channel Estimation and Signal Detection for OFDM Systems

Blind Shallow-water Acoustic Channel Estimation With Several Approaches

Joint channel estimation and ICI cancellation algorithm for pilot-assisted OFDM systems

Blind decoding and channel estimation algorithms for vertical layered space-time coding

The realization of the Non-adaptive and adaptive channel estimation algorithms in DVB-T

An algorithm for blind channel estimation in an ultra-wideband communication system based on FFT transform

A Non-Blind Channel Estimation Algorithm for OFDM Systems with High Transmission Efficiency

Performance Analysis of Multiuser Detectionwith Channel Estimation

Research of the Channel Estimation in Meteor Burst Communication

A Two Dimensional Processing Based Channel Estimation Method for Wireless OFDM Systems

Joint Algorithm about Channel Estimation and Carrier Frequency Tracking in OFDM System

Channel Estimation Based Signals Detection for Nonlinear Coding System

WLAN system channel estimation technique using training sequence

Channel Estimation Technique for COFDM System in Wireless Channel with Timing Offset Error

An iterative joint channel estimation and symbol detection algorithm for OFDM systems

Iterative Algorithm of Joint Channel Estimation and Symbol Detection in Smart Antenna

Algorithm of channel estimation using special training sequence for MIMO-OFDM systems

Fast channel estimation using superimposed training

Application of semi-blind channel estimation in OFDM low voltage power line communication

A radial basis function network-based channel estimation and tracking method for OFDM systems

An improved method for channel estimation algorithm in multiple antenna OFDM systems

The Application of Turbo Code Combined Channel Estimation in Rayleigh Fading Channel

Signal subspace iterative fitting based blind channel estimation for ZP-OFDM systems

Application of Generalized Inverse Matrix in Channel Estimation for OFDM System

Application of wavelet de-noising combined with channel estimation for OFDM systems

Technology of Channel Estimation in Mobile Communication

New blind channel estimation algorithm in orthogonal space-time block codes system

A New OFDM System and Its Blind Channel Estimation Performance

New Improved Transform-domain Channel Estimation Method for OFDM Systems

Effect of channel estimation error and delay on BER performance of adaptive Turbo coded modulation

Channel estimation and tracking using implicit training

Research on Channel Estimation for OFDM Systems with Receiver Diversity

Impact of Channel Features on the Pilot Selection in Pilot-aided OFDM Channel Estimation

A simplified channel estimation method for OFDM system with fast fading channels

A Novel Circle Trace Channel Estimation Algorithmfor Wideband Communications with Pilot

Subspace-based channel estimation algorithm for OFDM systems

Channel estimation algorithm for OFDM system with insufficient CP

Optimize Channel Estimation for Spread Spectrum System

Adaptive Blind Channel Estimation in Multicarrier Code Division Multiple Access System

A Sub-optimal Channel Estimation Algorithm for Practical OFDM Systems

Time-Varying Channel Estimation and Pilot Tone Placement for MIMO OFDM Systems

A Joint Detection and Channel Estimation Algorithm for Space-Time Block Coding

Improving the convergence property of DFE using the deterministic blind channel estimation

A channel estimation model of time-frequency transform OFDM system

Research of Channel Estimation Method for Time-varying Channel in OFDM System

Noise Reducing Technology in Channel Estimation

Blind Channel Estimation for Quasi-Orthogonal Space-time Block Codes

Channel Estimation of Rapidly Time-Varying Channels for OFDM Systems

Low Complexity Joint Decoding and Channel Estimation in OFDM Systems

Blind Multiuser Channel Estimation Based on Modulation-Induced Two-Cycle Cyclostationarity

A reduced complexity channel estimation method for OFDM systems

Multiuser Detection for Wideband Code Division Multiple Access Systems Based on Blind Uplink Channel Estimation

A New Channel Estimation Algorithm of Shortwave Broadband OFDM System

A New Channel Estimation Algorithm for Time-Multiplexed Pilot Channel

A joint method of carrier synchronization and channel estimation in OFDM system

Channel Estimation and Equalization in OFDM System with Phase Noise

New subspace algorithm for blind channel estimation in OFDM systems

Channel Estimation Based Signal Detection in Clipped OFDM

Blind channel estimation for vertical layered space-time codes

EM-Based Joint Channel Estimation and Data Detection Algorithm

Joint Iterative Channel Estimation and Decoder in WCDMA System

Joint Channel Estimation and Symbol Detection for Space-Time Block Code

Adaptive Channel Estimation for Mobile OFDM Systems

Low-rank adaptive method for sub-optimal channel estimation in OFDM system

Blind Channel Estimation Using Aid of Pseudo-Pilot-Symbols for OFDM System

A New Suboptimum Diversity Combining Receiver without Channel Estimation

Channel estimation method by using OFDM based orthogonal channels

A Study on Blind Channel Estimation Using Chaotic Coded Technique

Channel Estimation Algorithm for DRM Receiver

A channel estimation method for multi-antenna OFDM system in wireless MAN

Analysis and simulation of channel estimation for FMT system

Research and Analysis on the Pilot-aided OFDM Channel Estimation

Method of improving the performance of channel estimation

Pilot-aided low-rank channel estimation methods for OFDM systems

An Impulsive Noise Mitigation Method Based on Fourier Transformation and Channel Estimation

Channel estimation for multi-beam underwater acoustic detection system based on pseudo-noise sequence

A Pilot Symbol Aided Channel Estimation for Space-Time Coding System

A Novel Algorithm for Pilot-Aided Channel Estimation in OFDM Systems

A Novel Adaptive DFT-based Channel Estimation Method for OFDM System

An Iterative Joint Channel Estimation and Symbol Detection Algorithm Based on Prediction for OFDM Systems

Pilot-Based Channel Estimation Method for OFDM Systems

Joint data and channel estimation for slow fading channels

A New Wavelet-Based Denoising Method for OFDM Channel Estimation

A New Transform Domain Channel Estimation Method on OFDM Systems

A new algorithm of blind SOS subspace channel estimation for OFDM system

Joint Iterative Channel Estimation and Multiuser Detection Based on Interleave in MIMO Systems

Channel estimation for time varying channel based on decision directed technique in OFDM mobile systems

Blind channel estimation based on wavelet denoising for OFDM system in low-voltage power line communication

An Iterative Joint Channel Estimation and Symbol Detection Algorithm Based on RLS Adaptive Filter

An Adaptive Algorithm for Channel Estimation in AWGN

An Adaptive Dual Mode Semi-Blind Channel Estimation Based on Soft Information Processing for OFDM Systems

Methods for data-aided channel estimation for DS-UWB systems

A Channel Estimation Method Based on Frequency-domain Pilots and Time-domain Processing for OFDM Systems

Channel estimation for OFDM system in time-varying dispersive channels using the cyclic prefix

Adaptive real-time channel estimation based on FFT demodulation in SW frequency-hopping system

Overview of pilot-aided channel estimation in OFDM

A General Channel Estimation Model for OFDM System

A low complexity OFDM channel estimation algorithm based on the tracking of multipath time delays

Channel estimation based on Doppler frequency estimation for WCDMA systems

Two-Dimensional Channel Estimation for OFDM Systems Based on Polynomial Fitting

Analysis of interpolation algorithms based on pilot channel estimation for OFDM

DFT based channel estimation methods for OFDM

A Channel Estimation Method of High Precision in OFDM System

An adaptive channel estimation algorithm based on fuzzy rules for LEO communication

Channel Estimation Error of MISO Systems

Blind Channel Estimation in Space-Time Block Code

Wireless Channel Estimation with RLS Based on Modified Decision Weighting

The Algorithm Research in Channel Estimation Based on Diagonal Pilot Structure

Using Wiener Filtering Make the Channel Estimation of OFDM Signal

A Modified Channel Estimation Method for OFDM Systems Based on Superimposed Pilots

An expectation maximization based on semi-blind channel estimation method of OFDM systems

A Channel Estimation Method for OFDM Based on Forward Averaging and Time Domain Filtering

Iterative channel estimation based on block-type pilot-assisted for OFDM systems

Blind Channel Estimation for Space-Time Block Codes System Based on Subspace Methods

The Effect of Channel Estimation Error on the Space Time Coded OFDM Systems

Simulation of LDPC Decoding Algorithm Based on Channel Estimation

The Adaptive WMSA Channel Estimation Based on Doppler Shift Estimation

Channel estimation based on discrete cosine transform for OFDM systems

Space-time Channel Estimation for OFDM Systems Based on Comb-type Pilot Arrangement

A channel estimation method for OFDM WLANS with fast mobile terminal

Channel Estimation Based on Fractal Interpolation for WCDMA

A New Channel Estimation Method in OFDM Systems

OFDM Channel Estimation Method Based on Wavelet and SVD Low Rank Approximation