Results 1 to 10 of about 39,146 (185)
Benefits and Limits of Modulation Formats for Optical Communications [PDF]
Advances in Electrical and Electronic Engineering, 2014 This paper is focused on benefits and limits of intensity and phase modulation formats used in optical communications. The simulation results are obtained using OptSim software environment, employing Time Domain Split Step method.
Rajdi Agalliu, Michal Lucki
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A Novel Sample Based Quadrature Phase Shift Keying Demodulator [PDF]
The Scientific World Journal, 2014 This paper presents a new practical QPSK receiver that uses digitized samples of incoming QPSK analog signal to determine the phase of the QPSK symbol.
Asraf Mohamed Moubark +1 more
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Performance Analysis of Hybrid Phase Shift Keying over Generalized Nakagami Fading Channels
Journal of Telecommunications and Information Technology, 2023 In addition to the benefits of hybrid phase shift keying (HPSK) modulation in reducing the peak to average power ratio of the transmitted signal to reduce the zero cross- ings and the 0◦-degree phase transmissions, HPSK enhances the bit error rate (BER)
Mahmoud Youssuf , Mohamed Z. Abdelmageed
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Computers, 2022 This study proposed a two-stage method, which combines a convolutional neural network (CNN) with the continuous wavelet transform (CWT) for multiclass modulation classification. The modulation signals’ time-frequency information was first extracted using
Ahmed Mohammed Abdulkarem +8 more
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Digital modems of minimum frequency shift keying signals and their characteristics
Физика волновых процессов и радиотехнические системы, 2023 Background. The need to describe the features of the formation of minimum frequency shift keying signals, reveal the advantages of this type of modulation, provide circuits for digital demodulators of minimum frequency shift keying signals that provide ...
Anatoly I. Tyazhev
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Phase‐index correlation delay shift keying modulation
IET Communications, 2022 High‐data‐rate phase‐orthogonality correlation‐delay‐shift‐keying (HPO‐CDSK) transmits 2‐bits orthogonal signal in parallel and achieve higher spectral efficiency in the category of non‐coherent detection chaotic systems. However, the spectral efficiency
Jun‐Yi Duan, Hua Yang
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Average BER performance of MPSK with noisy phase reference in Nakagami‐m fading channel
Electronics Letters, 2021 This letter derives an approximate average bit error rate (BER) expression of M‐ary phase shift keying with a noisy phase reference in a Nakagami‐m fading channel.
Yeonsoo Jang
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Perancangan Sistem Modulator Binary Phase Shift Keying
Techne, 2016 Sistem yang dibangun adalah sebuah modul sistem modulator BPSK (Binary Phase Shift Keying). Perangkat yang dibahas adalah modulator BPSK dengan frekuensi 10kHz-48kHz dan untuk transmisi secara nirkabel ditambahkan pemancar FM yang akan mentranslasikan ...
Deddy Susilo +2 more
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Two-photon-absorption-based OSNR monitor for NRZ-PSK transmission systems [PDF]
, 2010 A two-photon absorption microcavity-based technique for monitoring in-band optical signal-to-noise ratio (OSNR) in nonreturn-to-zero phase-shift-keying systems is presented.
Anandarajah, Prince M. +10 more
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All-Optical Regeneration and Format Conversion for 4APSK Signals Based on Nonlinear Effects in HNLF
IEEE Photonics Journal, 2023 An all-optical format conversion and regeneration scheme about 4-ary amplitude and phase shift keying (4APSK) signals is proposed and numerically simulated based on nonlinear effects in the high nonlinear fiber (HNLF).
Qiankun Li +5 more
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