Results 151 to 160 of about 1,149,379 (214)
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CMOS PULSE GENERATOR FOR BPSK, OOK, PAM, AND PPM MODULATIONS
Journal of Circuits, Systems and Computers, 2009This work presents a single chip integrated pulse generator-modulator to be utilized in a short range wireless radio sensors remote control applications. The circuit, which can generate single pulses, modulated in BPSK, OOK, PAM, and also PPM, has been developed in a standard CMOS technology (AMS 0.35 μm).
FERRI, GIUSEPPE +2 more
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Ook modulator using photoconductive feedback oscillator
Microwave and Optical Technology Letters, 2010AbstractDesign approach and characterization of an integrated oscillator switched by an optical power are discussed. The oscillator is driven into oscillation at a frequency of 4.9 GHz under a light excitation power upper than a threshold value of 40 mW at a wavelength of 800 nm.
Faci, Salim +4 more
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Conference on Lasers and Electro-Optics, 2019
We experimentally demonstrate a 2.5Gbps communication system based on a 450nm laser over 60m underwater transmission distance at the BER level of 3.5×10−3 by using NRZ-OOK modulation and digital nonlinear equalization technology. © 2019 The Author(s)
Chunhui Lu +3 more
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We experimentally demonstrate a 2.5Gbps communication system based on a 450nm laser over 60m underwater transmission distance at the BER level of 3.5×10−3 by using NRZ-OOK modulation and digital nonlinear equalization technology. © 2019 The Author(s)
Chunhui Lu +3 more
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Infrared indoor wireless MIMO communication system using 1.2GHz OOK modulation
China Communications, 2019The multiple input multiple output (MIMO) systems using serial infrared (SIR), return to zero-inverted (RZI) and on off keying (OOK) modulation were studied. Also, by analyzing experimental results, curve fitting models were established.
Hao Du, Guoning Xu
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Gbps 60GHz CMOS OOK Modulator and Demodulator
2010 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS), 2010New 60GHz OOK modulator and demodulator are presented in this paper. A proposed 60GHz OOK modulator is designed in a 90nm CMOS process by current reuse and dual modulation technique and has 28.5dB high on/off isolation, and 10dB gain at 60GHz with 14.4mW at on-state of an OOK digital signal. It can process OOK digital signals up to 2Gbps.
Jae Jin Lee +4 more
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IEEE Latin America Transactions, 2016
This paper presents the spectral analysis of OOK modulation with rectangular carrier and the expression that shows the behavior of this signal in the frequency domain is obtained. A graphical analysis is performed from the representation of the harmonics of the OOK wave with rectangular carrier, it permit make the conversion in OOK modulated signal ...
A. D. R. Sanchez, J. C. C. Hurtado
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This paper presents the spectral analysis of OOK modulation with rectangular carrier and the expression that shows the behavior of this signal in the frequency domain is obtained. A graphical analysis is performed from the representation of the harmonics of the OOK wave with rectangular carrier, it permit make the conversion in OOK modulated signal ...
A. D. R. Sanchez, J. C. C. Hurtado
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Phase-modulated OOK formats at 40G and 160G
SPIE Proceedings, 2006OOK signals with certain phase modulations can show improved performance without incurring much complexity and cost. In this paper we report recent progress on the performance study of high-speed OOK data signals with different phase-modulation schemes.
Yikai Su, Lothar Möller
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A CDMA-based high-speed multi-access VLC system with OOK modulation
Optics Communications, 2019An overall bit rate of 625 Mb/s real-time multi-access VLC system is presented in this paper. In order to decrease the effect of ambient light and deal with the non-linearity of LED, we propose a new algorithm to get orthogonal codes which is suitable ...
Xuanjie Li +5 more
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Multi-LED Phase-Shifted OOK Modulation Based Visible Light Communication Systems
IEEE Photonics Technology Letters, 2013Yan-Yu Zhang, Yi-Jun Zhu
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LDPC code design for OOK modulated Poisson optical channels
2013 47th Annual Conference on Information Sciences and Systems (CISS), 2013The Poisson channel is a popular direct-detection model in optical communication. In this paper, we study efficient data communication over the on-off keyed (OOK) modulated Poisson channel. We first analyze the channel capacity, and based on the analysis we study the application of low-density parity-check (LDPC) codes on such channels.
null Tingjun Xie +3 more
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