Results 1 to 10 of about 718 (153)

Blind Turbo Equalization of Short CPM Bursts for UAV-Aided Internet of Things [PDF]

open access: yesSensors, 2022
With the surge of Internet of Things (IoT) applications using unmanned aerial vehicles (UAVs), there is a huge demand for an excellent complexity/power efficiency trade-off and channel fading resistance at the physical layer.
Zihao Pan   +4 more
doaj   +2 more sources

Blind Adaptive Channel Equalization with Performance Analysis [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2006
A new adaptive multiple-shift correlation (MSC)-based blind channel equalizer (BCE) for multiple FIR channels is proposed. The performance of the MSC-based BCE under channel order mismatches due to small head and tail channel coefficient is investigated.
Ueng Fang-Biau, Yu Shiann-Jeng
doaj   +2 more sources

Blind Channel Estimation and Equalization for Multiple FIR Channels [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2004
This paper deals with the problem of blind equalizations based on effective channel order determination for multiple FIR channels. Most popular order determination methods use the eigenvalue decomposition (EVD) technique with an overmodeled data ...
Ueng Fang-Biau, Yu Shiann-Jeng
doaj   +2 more sources

A Gaussian Mixture Approach to Blind Equalization of Block-Oriented Wireless Communications

open access: yesEURASIP Journal on Advances in Signal Processing, 2010
We consider blind equalization for block transmissions over the frequency selective Rayleigh fading channel. In the absence of pilot symbols, the receiver must be able to perform joint equalization and blind channel identification.
Frederic Lehmann
doaj   +2 more sources

Blind iterative channel identification and equalization [PDF]

open access: yesICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240), 2002
We propose an iterative solution to the problem of blindly and jointly identifying the channel response and transmitted symbols in a digital communications system. The proposed algorithm iterates between a symbol estimator, which uses tentative channel estimates to provide soft symbol estimates, and a channel estimator, which uses the symbol estimates ...
Renato Rocha Lopes, John R. Barry
openaire   +1 more source

OF-FSE: An Efficient Adaptive Equalization for QAM-Based UAV Modulation Systems

open access: yesDrones, 2023
Quadrature amplitude modulation (QAM) is one of the essential components of unmanned 1 aerial vehicle (UAV) communications. However, the output signal accuracy of QAM deteriorates dramatically and even collapses in the case of UAVs in a harsh channel ...
Luyao Zhang, Zhongyong Wang, Guhan Zheng
doaj   +1 more source

Collaborative Blind Equalization for Time-Varying OFDM Applications Enabled by Normalized Least Mean and Recursive Square Methodologies

open access: yesIEEE Access, 2020
In this work, a collaborative blind equalization method for the orthogonal frequency division multiplexing (OFDM) signals in time-varying channels is presented.
Li Deng   +4 more
doaj   +1 more source

Adaptive modulation based on steady-state mean square error for underwater acoustic communication

open access: yesEURASIP Journal on Wireless Communications and Networking, 2021
To improve the transmission efficiency and facilitate the realization of the scheme, an adaptive modulation (AM) scheme based on the steady-state mean square error (SMSE) of blind equalization is proposed.
Zhiyong Liu, Zhoumei Tan, Fan Bai
doaj   +1 more source

A Wireless Channel Equalization Method Based on Hybrid Whale Optimization: For Constant Modulus Blind Equalization System

open access: yesMathematics, 2023
This paper proposes a wireless channel equalization method applied to the constant modulus blind equalization system, which addresses the slow convergence and strong randomness in the initialization of equalizer weights in the constant modulus blind ...
Xiaolin Wang   +4 more
doaj   +1 more source

Nonlinear Signal Estimation Using Semi-Blind Mutually Referenced Equalizers in Convolutive Mixture

open access: yesIEEE Access, 2023
Nonlinearity is a common source of signal and channel distortion in digital communication. In many circumstances, such distortions must be compensated by equalization algorithms or devices.
Abdulmajid Lawal   +2 more
doaj   +1 more source

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