Articles with "matrix transform" as a keyword



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Discrete Hartley matrix transform precoding-based OFDM system to reduce the high PAPR

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Published in 2019 at "ICT Express"

DOI: 10.1016/j.icte.2018.07.001

Abstract: Abstract The high peak-to-average power ratio (PAPR) is one of the major drawbacks of the orthogonal frequency division multiplexing (OFDM) systems that make non-linear distortion in practical implementation of high power amplifier (HPA). In this… read more here.

Keywords: matrix transform; based ofdm; precoding based; matrix ... See more keywords
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A Real-Valued Chaotic Orthogonal Matrix Transform-Based Encryption for OFDM-PON

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Published in 2018 at "IEEE Photonics Technology Letters"

DOI: 10.1109/lpt.2018.2853155

Abstract: We propose and experimentally demonstrate a novel real-valued chaotic orthogonal matrix transform-based encryption scheme for improving the physical-layer security in fast orthogonal frequency-division multiplexing (fast-OFDM) passive optical network. Chaotic orthogonal matrices generated by a four-dimensional… read more here.

Keywords: chaotic orthogonal; real valued; matrix transform; encryption ... See more keywords
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PAPR suppressing matrix transform and dual layered phase sequencing design for a chaos-based multi-carrier CDMA VLC system.

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Published in 2021 at "Optics express"

DOI: 10.1364/oe.434027

Abstract: In this paper, we propose a chaos-based visible light communication system, wherein multiple users can access the network via the multi-carrier code division multi-access (MC-CDMA). By utilizing the high security property of chaotic sequences being… read more here.

Keywords: matrix transform; transform dual; multi carrier; chaos based ... See more keywords