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   Articles with "semi blind" as a keyword



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A robust semi-blind watermarking for color images based on multiple decompositions

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recommendations! Published in 2017 at "Multimedia Tools and Applications"

DOI: 10.1007/s11042-017-4355-0

Abstract: In this paper, a robust semi-blind watermarking scheme for color images, based on multiple decompositions is proposed to preserve the copyrights of the owner. Using multiple decompositions, the gray watermark is embedded into a host… read more here.

Keywords: multiple decompositions; color images; blind watermarking; robust semi ... See more keywords
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Erratum to: A robust semi-blind watermarking for color images based on multiple decompositions

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recommendations! Published in 2017 at "Multimedia Tools and Applications"

DOI: 10.1007/s11042-017-4532-1

Abstract: In this paper, a robust semi-blind watermarking scheme for color images, based on multiple decompositions is proposed to preserve the copyrights of the owner. Using multiple decompositions, the gray watermark is embedded into a host… read more here.

Keywords: color; multiple decompositions; blind watermarking; robust semi ... See more keywords
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Incremental Fixed-Gain Opportunistic AF in Two-Way Relaying Networks

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recommendations! Published in 2017 at "Wireless Personal Communications"

DOI: 10.1007/s11277-016-3852-1

Abstract: In this paper, we investigate an incremental semi-blind opportunistic amplify-and-forward (AF) protocol in two-way relaying communication. This protocol is analyzed in terms of the average sum-rate and average symbol error rate considering independent Rayleigh fading… read more here.

Keywords: two way; incremental semi; way relaying; semi blind ... See more keywords
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New insights on super-high resolution for video-based heart rate estimation with a semi-blind source separation method

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recommendations! Published in 2020 at "Computers in biology and medicine"

DOI: 10.1016/j.compbiomed.2019.103535

Abstract: Remote photoplethysmography (rPPG), a non-contact technique to estimate heart rates (HR) from video recordings, has attracted much attention from researchers in recent years. It is well-known that rPPG signals can be extracted from low-resolution videos.… read more here.

Keywords: resolution; high resolution; semi blind; rppg ... See more keywords
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Semi-Blind Channel-and-Signal Estimation for Uplink Massive MIMO With Channel Sparsity

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recommendations! Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2928092

Abstract: This paper considers the transceiver design for uplink massive multiple-input multiple-output (MIMO) systems with channel sparsity in the angular domain. Recent progress has shown that sparsity-learning-based blind signal detection is able to retrieve the channel… read more here.

Keywords: semi blind; blind channel; uplink massive; channel sparsity ... See more keywords
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Semi-Blind Receivers for Multi-User Massive MIMO Relay Systems Based on Block Tucker2-PARAFAC Tensor Model

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recommendations! Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.2973257

Abstract: Massive multiple-input multiple-output (MIMO) relay can significantly improve the capacity and throughput of wireless networks, thus has been a sought-after technique for future communication systems. However, the development of massive MIMO relay systems faces several… read more here.

Keywords: tensor based; tensor; semi blind; relay systems ... See more keywords
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Semi-Blind Channel Estimation in MIMO Systems With Discrete Priors on Data Symbols

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recommendations! Published in 2022 at "IEEE Signal Processing Letters"

DOI: 10.1109/lsp.2021.3125257

Abstract: In this work, we addressthe MIMO semi-blindchannel estimation problem. We propose an eigenvalue decomposition based technique to significantly reduce the dimensionality of the EM based algorithm when the imposed prior on the data is Gaussian,… read more here.

Keywords: channel estimation; algorithm; blind channel; estimation ... See more keywords

Second-Order Statistics-Based Semi-Blind Techniques for Channel Estimation in Millimeter-Wave MIMO Analog and Hybrid Beamforming

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recommendations! Published in 2020 at "IEEE Transactions on Communications"

DOI: 10.1109/tcomm.2020.3016010

Abstract: Semi-blind (SB) channel estimation is conceived for millimeter wave (mmWave) analog-beamforming (AB) and hybrid-beamforming (HB)-based multiple-input multiple-output (MIMO) systems, which also exploits the data symbols for improving the estimation accuracy. A novel aspect of the… read more here.

Keywords: analog; semi blind; channel estimation; hybrid beamforming ... See more keywords
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SBCMA: Semi-Blind Combined Middle-Round Attack on Bit-Permutation Ciphers With Application to AEAD Schemes

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recommendations! Published in 2022 at "IEEE Transactions on Information Forensics and Security"

DOI: 10.1109/tifs.2022.3213424

Abstract: Side-channel and fault injection attacks are well-researched topics within physical security of cryptographic implementations. They can reduce the complexity of the key retrieval to trivial numbers. It was shown that their combination is even more… read more here.

Keywords: blind combined; attack; round; sbcma semi ... See more keywords
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Semi-blind Channel Estimation for Multiuser Massive MIMO Systems

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recommendations! Published in 2018 at "IEEE Transactions on Signal Processing"

DOI: 10.1109/tsp.2017.2771725

Abstract: Motivated by recent developments in time-division duplex massive multiple-input multiple-output (MIMO) systems, this paper investigates semi-blind channel estimation for multiuser MIMO systems. An expectation-maximization (EM) algorithm is derived for semi-blind channel estimation and a tractable… read more here.

Keywords: estimation; blind channel; channel estimation; semi blind ... See more keywords
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Semi-Blind Joint Channel and Symbol Estimation for IRS-Assisted MIMO Systems

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recommendations! Published in 2022 at "IEEE Transactions on Signal Processing"

DOI: 10.1109/tsp.2023.3263257

Abstract: Intelligent reflecting surface (IRS) is a promising technology for the 6$\text{th}$ generation of wireless systems, realizing the smart radio environment concept. This paper presents a novel tensor-based receiver for Intelligent reflecting surface (IRS)-assisted multiple-input multiple-output communications… read more here.

Keywords: symbol; blind receiver; channel symbol; irs assisted ... See more keywords