Results 21 to 30 of about 282,649 (262)
Enhanced Index Modulated OFDM Spread Spectrum
IEEE Access, 2018 Index modulated OFDM spread spectrum (OFDM-IM-SS) is a recently proposed scheme, which transmits the additional bits (index bits) through the code domain.
Jun Li +4 more
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Compressive Sampling with Multiple Bit Spread Spectrum-Based Data Hiding
Applied Sciences, 2020 We propose a novel data hiding method in an audio host with a compressive sampling technique. An over-complete dictionary represents a group of watermarks.
Gelar Budiman +2 more
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Presenting a Method for Improving Echo Hiding [PDF]
Computer and Knowledge Engineering, 2019 In this article, one of the most important methods of steganography on VoIP called echo hiding is improved. This method has advantages in maintaining the statistical and perceptual characteristics of audio signals as well as security against the ...
hanieh rafiee, mohammad fakhredanesh
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Compressive Sampling of Color Retinal Image Using Spread Spectrum Fourier Sampling and Total Variant
IEEE Access, 2022 In medical imaging, the application of retinal images demands a lot of retinal photos to analyze and requires efficient compression techniques for retinal image storage.
Ledya Novamizanti +5 more
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ComTech, 2012 The exchange of traffic information in cyberspace grows fast. In all areas of life utilize technology to exchange information. One of the media owned by many people is mobile device such as mobile phone and tablet computer. In fact many people have been
Rojali Rojali +2 more
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Telehealth Secure Solution to Provide Childhood Obesity Monitoring
Sensors, 2022 Childhood obesity causes not only medical and psychosocial problems, it also reduces the life expectancy of the adults that they will become. On a large scale, obese adults adversely affect labor markets and the gross domestic product of countries ...
Elitania Jiménez-García +4 more
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Multi‐Carrier Spread‐Spectrum [PDF]
European Transactions on Telecommunications, 1999 I. General Issues of Multi-Carrier Spread-Spectrum. Multi-Carrier Spread-Spectrum: An Attractive Special Case of General Multiuser/Multisubchannel Transmission Methods J. Lindner Overview of the Results About Multi-Tone CDMA Detection L. Vandendorpe. Comparison of Multiple Access Schemes for an OFDM Downlink System H. Rohling, et al.
Khaled Fazel +3 more
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ECSS: High-Embedding-Capacity Audio Watermarking with Diversity Reception
Entropy, 2022 Digital audio watermarking is a promising technology for copyright protection, yet its low embedding capacity remains a challenge for widespread applications. In this paper, the spread-spectrum watermarking algorithm is viewed as a communication channel,
Shiqiang Wu +4 more
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Spread Spectrum Magnetic Resonance Imaging [PDF]
IEEE Transactions on Medical Imaging, 2012 We propose a novel compressed sensing technique to accelerate the magnetic resonance imaging (MRI) acquisition process. The method, coined spread spectrum MRI or simply s2MRI, consists of pre-modulating the signal of interest by a linear chirp before random k-space under-sampling, and then reconstructing the signal with non-linear algorithms that ...
Gilles Puy +6 more
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Sensors, 2017 With the rapid development of wireless communication systems and electronic techniques, the limited frequency spectrum resources are shared with various wireless devices, leading to a crowded and challenging coexistence circumstance. Cognitive radio (CR)
Hailiang Xiong +5 more
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