Efficient interpolation based OMP for sparse channel estimation in underwater acoustic OFDM
Sign Up to like & getrecommendations! Published in 2021 at "Applied Acoustics"
DOI: 10.1016/j.apacoust.2020.107606
Abstract: Abstract To achieve higher accuracy of path delay estimation with lower computational complexity, the orthogonal matching pursuit (OMP) method with interpolation algorithm has been adopted for the sparse channel estimation, such as underwater acoustic (UWA)… read more here.
Keywords: based omp; interpolation based; estimation; path delay ... See more keywords
Iterative Sparse Channel Estimation and Spatial Correlation Learning for Multichannel Acoustic OFDM Systems
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Journal of Oceanic Engineering"
DOI: 10.1109/joe.2019.2932662
Abstract: This article addresses the problem of coherent detection of acoustic orthogonal frequency division multiplexing (OFDM) signals using a sparse channel estimation method based on a physical model of multipath propagation. Unlike the conventional sample-spaced and… read more here.
Keywords: sparse channel; channel estimation; method; complexity ... See more keywords
A Sparse Channel Estimation Scheme Combined With Distorted Signal Detection for UWB OFDM Systems
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2022.3173083
Abstract: Nonlinear distortions generated by the power amplifier (PA) will affect the performance of channel estimation thus the veracity of signal detection for ultra-wideband (UWB) orthogonal frequency-division multiplexing (OFDM) systems. The existing nonlinear cancellation techniques for… read more here.
Keywords: ofdm systems; channel estimation; signal detection; sparse channel ... See more keywords
Deep Unfolding Basis Pursuit: Improving Sparse Channel Reconstruction via Data-Driven Measurement Matrices
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2022.3164091
Abstract: For massive multiple-input multiple-output (MIMO) systems operating in frequency-division duplex mode, downlink channel state information (CSI) acquisition will incur large overhead. This overhead can be substantially reduced when compressive sensing techniques are employed to estimate… read more here.
Keywords: sparse channel; measurement matrices; driven measurement; data driven ... See more keywords
Underdetermined direction of arrival estimation for multiple input and multiple outputs sparse channel based on Bayesian learning framework
Sign Up to like & getrecommendations! Published in 2023 at "Indonesian Journal of Electrical Engineering and Computer Science"
DOI: 10.11591/ijeecs.v31.i1.pp170-179
Abstract: Direction of arrival (DOA) estimation for a sparse channel has attracted serious attention recently. Better signal analysis and denoising achieve accuracy in DOA determination. This paper proposes an underdetermined DOA estimation for multiple input and… read more here.
Keywords: sparse channel; framework; estimation multiple; estimation ... See more keywords