Log in

Relevant bibliographies by topics / M-ary Pulse Position Modulation (M-PPM) / Journal articles

To see the other types of publications on this topic, follow the link: M-ary Pulse Position Modulation (M-PPM).

Journal articles on the topic 'M-ary Pulse Position Modulation (M-PPM)'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'M-ary Pulse Position Modulation (M-PPM).'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Zekry, Abdelhalim, Christena Ghandour, Nazmi A. Mohammed, and S. El-Rabaie. "Hybrid modulation schemes for data transmission improvement of indoor visible light communication system." International Journal of Engineering & Technology 7, no. 4 (2018): 2822. http://dx.doi.org/10.14419/ijet.v7i4.19423.

Full text

Abstract:

This work enhances the bit rate characteristics, receiver sensitivity and power requirements of multicarrier modulation schemes (MCM) for visible light communication (VLC) dimming control system at bit error rate (BER) less than 10-3. This study develops the mathematical formulation for merging pulse position modulation (PPM) and overlapping pulse position modulation (OPPM) with M-ary quadrature amplitude modulation DC-Biased optical orthogonal frequency division multiplexing (M-QAM DCO OFDM), which can achieve efficient data transmission while maintaining communication quality. These schemes

APA, Harvard, Vancouver, ISO, and other styles

2

Xuan Quyen, Nguyen, Vu Van Yem, Thang Manh Hoang, and Kyandoghere Kyamakya. "M×N‐ary chaotic pulse‐width‐position modulation." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 32, no. 3 (2013): 776–93. http://dx.doi.org/10.1108/03321641311305746.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Gökçe, Muhsin caner, Yahya Baykal, and Yalçın Ata. "M-ary pulse position modulation performance in strong atmospheric turbulence." Journal of the Optical Society of America A 35, no. 12 (2018): 2020. http://dx.doi.org/10.1364/josaa.35.002020.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Zhang, Hao, T. Aaron Gulliver, and Ting-ting Lu. "Pulse waveforms for 60 GHz M-ary pulse position modulation communication systems." IET Communications 7, no. 2 (2013): 169–79. http://dx.doi.org/10.1049/iet-com.2012.0257.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Ata, Yalçın, Yahya Baykal, and Muhsin C. Gökçe. "M-ary pulse position modulation performance in non-Kolmogorov turbulent atmosphere." Applied Optics 57, no. 24 (2018): 7006. http://dx.doi.org/10.1364/ao.57.007006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Gökçe, Muhsin Caner, Yahya Baykal, and Yalçın Ata. "Performance analysis of M-ary pulse position modulation in strong oceanic turbulence." Optics Communications 427 (November 2018): 573–77. http://dx.doi.org/10.1016/j.optcom.2018.07.037.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Ata, Yalçın, Muhsin C. Gökçe, and Yahya Baykal. "M-ary pulse position modulation performance with adaptive optics corrections in atmospheric turbulence." Journal of Modern Optics 67, no. 6 (2020): 563–68. http://dx.doi.org/10.1080/09500340.2020.1762010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Hayal, Mohammed R., Bedir B. Yousif, and Mohamed A. Azim. "Performance Enhancement of DWDM-FSO Optical Fiber Communication Systems Based on Hybrid Modulation Techniques under Atmospheric Turbulence Channel." Photonics 8, no. 11 (2021): 464. http://dx.doi.org/10.3390/photonics8110464.

Full text

Abstract:

In this paper, we enhance the performance efficiency of the free-space optical (FSO) communication link using the hybrid on-off keying (OOK) modulation, M-ary digital pulse position modulation (M-ary DPPM), and M-pulse amplitude and position modulation (M-PAPM). This work analyzes and enhances the bit error rate (BER) performance of the moment generating function, modified Chernoff bound, and Gaussian approximation techniques. In the existence of both an amplified spontaneous emission (ASE) noise, atmospheric turbulence (AT) channels, and interchannel crosstalk (ICC), we propose a system model

APA, Harvard, Vancouver, ISO, and other styles

9

Yiannopoulos, Konstantinos, Nikos C. Sagias та Anthony C. Boucouvalas. "Average Error Probability of an Optically Pre-Amplified Pulse-Position Modulation Multichannel Receiver under Malaga-ℳ Fading". Applied Sciences 10, № 3 (2020): 1141. http://dx.doi.org/10.3390/app10031141.

Full text

Abstract:

We present analytical results on the average probability of error (PER) performance of an optically pre-amplified pulse-position modulation (PPM) receiver under Malaga- M fading. The results are in the form of a finite sum whose number of terms depends on the PPM modulation order and the noise modes of the amplifier, enabling the efficient calculation of the average PER. In addition, we utilized the presented analysis to evaluate the performance of a equal-gain-combining (EGC) diversity receiver that operates in conjunction with optical amplification and PPM. The results show that the utilizat

APA, Harvard, Vancouver, ISO, and other styles

10

Yoo, Jong‐Ho, Byung Wook Kim, and Sung‐Yoon Jung. "Modelling and analysis of M ‐ary variable pulse position modulation for visible light communications." IET Optoelectronics 9, no. 5 (2015): 184–90. http://dx.doi.org/10.1049/iet-opt.2014.0107.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Scarano, Gaetano, Andrea Petroni, Mauro Biagi, and Roberto Cusani. "Blind Fractionally Spaced Channel Equalization for Shallow Water PPM Digital Communications Links." Sensors 19, no. 21 (2019): 4604. http://dx.doi.org/10.3390/s19214604.

Full text

Abstract:

Underwater acoustic digital communications suffer from inter-symbol interference deriving from signal distortions caused by the channel propagation. Facing such kind of impairment becomes particularly challenging when dealing with shallow water scenarios characterized by short channel coherence time and large delay spread caused by time-varying multipath effects. Channel equalization operated on the received signal represents a crucial issue in order to mitigate the effect of inter-symbol interference and improve the link reliability. In this direction, this contribution presents a preliminary

APA, Harvard, Vancouver, ISO, and other styles

12

Migla, Sandis, Kristaps Rubuls, Nikolajs Tihomorskis, et al. "Ultra-Wideband Analog Radio-over-Fiber Communication System Employing Pulse-Position Modulation." Applied Sciences 15, no. 8 (2025): 4222. https://doi.org/10.3390/app15084222.

Full text

Abstract:

This research presents a novel approach to 28 GHz impulse radio ultra-wideband (IR-UWB) transmission using pulse position modulation (PPM) over an analog radio-over-fiber (ARoF) link, investigating the impact of fiber-based fronthaul on the overall performance of the communication system. In this setup, an arbitrary waveform generator (AWG) is employed for PPM signal generation, while demodulation is performed with a commercial time-to-digital converter (TDC) based on an event timer. To enhance the reliability of transmitted reference PPM (TR-PPM) signals, the transmission system integrates Gr

APA, Harvard, Vancouver, ISO, and other styles

13

Prabakaran, M. P., A. Sivasubramanian, and K. Chitra. "Performance Analysis of QAM with MEMS Based SCIR for Indoor Optical Wireless Communication." Applied Mechanics and Materials 592-594 (July 2014): 2189–92. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2189.

Full text

Abstract:

This paper presents the systematic evaluation of performance of indoor optical wireless communication using different modulation schemes and micro electro mechanical systems - single channel imaging receiver (MEMS-SCIR). For the future modern world, indoor optical wireless communications (OWC) play a vital role. The main objective is to compare the performance of various modulation schemes in terms of their bit error probability. On -off keying (OOK) and pulse position modulation (PPM) are widely used in optical wireless communication for its simplicity. Here different digital modulation schem

APA, Harvard, Vancouver, ISO, and other styles

14

Ata, Yalçın, Yahya Baykal, and Muhsin Caner Gökçe. "Performance of M-ary pulse position modulation for aeronautical uplink communications in an atmospheric turbulent medium." Applied Optics 58, no. 28 (2019): 7909. http://dx.doi.org/10.1364/ao.58.007909.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Liu, Xiang, S. Chandrasekhar, T. H. Wood, et al. "M-ary pulse-position modulation and frequency-shift keying with additional polarization/phase modulation for high-sensitivity optical transmission." Optics Express 19, no. 26 (2011): B868. http://dx.doi.org/10.1364/oe.19.00b868.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Baltazar Barrón, Rebeca, Celso Gutiérrez Martínez, Jacobo Meza Pérez, and José Alfredo Torres Fórtiz. "Design and evaluation of a free-space optical communications link using pulse width modulation (PWM)." Ingeniería Investigación y Tecnología 26, no. 2 (2025): 1–14. https://doi.org/10.22201/fi.25940732e.2025.26.2.013.

Full text

Abstract:

Free-space optical communications (FSO) use light as information carrier. Light travels through atmosphere or vacuum and reaches a distant receiver. Light is generated by semiconductor lasers (LDs) or light-emitting diodes (LEDs) and is modulated by varying the injection current on these devices. To carry information, basic modulation techniques are analog as intensity (IM), amplitude (AM), frequency (FM) or phase (PM). However, pulse time modulation (PTM) techniques as pulse-width modulation (PWM) or pulse-position modulation (PPM) are more performant. In PWM, information is imprinted on the

APA, Harvard, Vancouver, ISO, and other styles

17

Xu, Guanjun. "Error performance of deep space optical communication with M-ary pulse position modulation over coronal turbulence channels." Optics Express 27, no. 9 (2019): 13344. http://dx.doi.org/10.1364/oe.27.013344.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Liu, Xiang, Thomas H. Wood, Robert W. Tkach, and S. Chandrasekhar. "Demonstration of Record Sensitivities in Optically Preamplified Receivers by Combining PDM-QPSK and M-Ary Pulse-Position Modulation." Journal of Lightwave Technology 30, no. 4 (2012): 406–13. http://dx.doi.org/10.1109/jlt.2011.2172915.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Tian, Ruiyang, Tao Wang, Xiaoyu Shen, et al. "108 m Underwater Wireless Optical Communication Using a 490 nm Blue VECSEL and an AOM." Sensors 24, no. 8 (2024): 2609. http://dx.doi.org/10.3390/s24082609.

Full text

Abstract:

Advanced light sources in the blue-green band are crucial for underwater wireless optical communication (UWOC) systems. Vertical-external-cavity surface-emitting lasers (VECSELs) can produce high output power and good beam quality, making them suitable for UWOC. This paper presents a 108 m distance UWOC based on a 100 mW 490 nm blue VECSEL and an acousto-optic modulator (AOM). The high-quality beam, which is near diffraction-limited, undergoes relatively small optical attenuation when using a conventional avalanche photodiode (APD) as the detector and employing 64-pulse position modulation (PP

APA, Harvard, Vancouver, ISO, and other styles

20

Hechmi, Saidi, and Hamdi Noureddine. "End-to-end performance of DF multihop hybrid RF/FSO system using MPPM coding and MIMO technique under dependent GG turbulence channels." Indonesian Journal of Electrical Engineering and Computer Science (IJEECS) 19, no. 2 (2020): 811–18. https://doi.org/10.11591/ijeecs.v19.i2.pp811-818.

Full text

Abstract:

The paper presents a BER analysis for hybrid Radio Frequency/ multihop Free Space Optics, known as RF/ FSO, communication system benefiting from Multiple Input Multiple Output (MIMO) configuration but impaired by Gamma-Gamma, known as GG, turbulence. Authors deploy Multiple Pulse Position Modulation, known as M-PPM, like a signaling technique. Furthermore, the exact as well as approximated amounts of Symbol-Error Rates, known as SERs, are both judged in this work. A closed form formula related to the whole Probability Density Function, called PDF, for our designed system is derived. Such inter

APA, Harvard, Vancouver, ISO, and other styles

21

Saidi, Hechmi, and Noureddine Hamdi. "End-to-end performance of DF multihop hybrid RF/FSO system using MPPM coding and MIMO technique under dependent GG turbulence channels." Indonesian Journal of Electrical Engineering and Computer Science 19, no. 2 (2020): 811. http://dx.doi.org/10.11591/ijeecs.v19.i2.pp811-818.

Full text

Abstract:

<p><span>The paper presents a BER analysis for hybrid Radio Frequency/multihop Free Space Optics, known as RF/FSO, communication system benefiting from Multiple Input Multiple Output (MIMO) configuration but impaired by Gamma-Gamma, known as GG, turbulence. Authors deploy Multiple Pulse Position Modulation, known as M-PPM, like a signaling technique. Furthermore, the exact as well as approximated amounts of Symbol-Error Rates, known as SERs, are both judged in this work. A closed form formula related to the whole Probability Density Function, called PDF, for our designed system is

APA, Harvard, Vancouver, ISO, and other styles

22

Han, Xiaotian, Peng Li, Guangying Li, et al. "Demonstration of 12.5 Mslot/s 32-PPM Underwater Wireless Optical Communication System with 0.34 Photons/Bit Receiver Sensitivity." Photonics 10, no. 4 (2023): 451. http://dx.doi.org/10.3390/photonics10040451.

Full text

Abstract:

High-capacity, long-distance underwater wireless optical communication (UWOC) technology is an important component in building fast, flexible underwater sensing networks. Underwater communication with light as a carrier has a large communication capacity, but channel loss induced by light attenuation and scattering largely limits the underwater wireless optical communication distance. To improve the communication distance, a low-power 450 nm blue continuous wave (CW) laser diode (LD)-based UWOC system was proposed and experimentally demonstrated. A communication link was designed and construct

APA, Harvard, Vancouver, ISO, and other styles

23

CHEN, Zhuo-li, and Juan-juan YAN. "Impact of pointing errors on performance of a ground-to-satellite laser uplink communication system based on M-ary pulse position modulation." Journal of China Universities of Posts and Telecommunications 16 (September 2009): 20–23. http://dx.doi.org/10.1016/s1005-8885(08)60364-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Afifah, Syifa Hana, Nachwan Mufti Adriansyah, and Brian Pamukti. "Performance of Static Power Allocation in Indoor Room on VLC-NOMA System Using Modulation PPM." Journal of Measurements Electronics Communications and Systems 10, no. 1 (2023): 8. http://dx.doi.org/10.25124/jmecs.v10i1.5835.

Full text

Abstract:

   Visible light communication (VLC) is an emerging and promising technology that exploits the visible light spectrum for data transmission. However, one of the major challenges in VLC is how to efficiently allocate the scarce modulation bandwidth to multiple users while avoiding interference and maintaining signal quality. To tackle this challenge, we propose a novel scheme that combines non-orthogonal multiple access (NOMA) with static power allocation (SPA) and pulse position modulation (PPM) in VLC. We conduct simulations in a realistic indoor scenario with a 9x9x3 m room

APA, Harvard, Vancouver, ISO, and other styles

25

Grześ, Paweł, Maria Michalska, and Jacek Świderski. "Gain-switched seed laser for Deep Space communication applications." Photonics Letters of Poland 10, no. 2 (2018): 45. http://dx.doi.org/10.4302/plp.v10i2.818.

Full text

Abstract:

Deep Space (DS) communication plays an important role in space exploration programs, especially in interplanetary flights projects. To resolve limitations of a well-known microwave link, an optical communication is considered. In the article a gain-switched seed laser for high power transmitter in a Master Oscillator Power Amplifier (MOPA) architecture is presented. This optical signal source is able to generate picosecond pulses on demand and is suitable for high speed data link over a long range. The laser is dedicated to the pulse position modulation (PPM) scheme for low power consuming, hi

APA, Harvard, Vancouver, ISO, and other styles

26

Ismail, Morsy Ahmed Morsy, and Khalid Saleh. "A 930 m/180 Gbps*User Underwater Coherent Optical Code-Division Multiple-Access Network Based on Hybrid 256-Differential Pulse Position Modulation and Weighted Modified Prime Code Sequence." Photonics 11, no. 4 (2024): 368. http://dx.doi.org/10.3390/photonics11040368.

Full text

Abstract:

Currently, there are three types of optical communication networks based on the communication channel between the transmitter and receiver: the optical fiber channel, visible light channel, and optical wireless channel networks. The last type has several advantages for underwater communication, wireless sensors, and military communication networks. However, this type of optical network suffers from weather conditions in free-space communications and attenuation owing to the scattering and absorption mechanisms for underwater communication. In this study, we present a new transceiver architectu

APA, Harvard, Vancouver, ISO, and other styles

27

Trane, Gianpiero, Rito Mijarez, and Jesús Arturo Pérez-Díaz. "Automatic Guided Waves Data Transmission System Using an Oil Industry Multiwire Cable." Sensors 20, no. 3 (2020): 868. http://dx.doi.org/10.3390/s20030868.

Full text

Abstract:

Alternative wireless data communication systems are a necessity in industries that operate in harsh environments such as the oil and gas industry. Ultrasonic guided wave propagation through solid metallic structures, such as metal barriers, rods, and multiwire cables, have been proposed for data transmission purposes. In this context, multiwire cables have been explored as a communication media for the transmission of encoded ultrasonic guided waves. This work presents the proprietary hardware design and implementation of an automatic data transmission system based on the propagation of ultras

APA, Harvard, Vancouver, ISO, and other styles

28

Pham, Hien T. T., Ngoc T. Dang, and Anh T. Pham. "Effects of atmospheric turbulence and misalignment fading on performance of serial-relaying M-ary pulse-position modulation free-space optical systems with partially coherent Gaussian beam." IET Communications 8, no. 10 (2014): 1762–68. http://dx.doi.org/10.1049/iet-com.2013.0721.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Elsayed, Ebrahim E., and Bedir B. Yousif. "Performance enhancement of M-ary pulse-position modulation for a wavelength division multiplexing free-space optical systems impaired by interchannel crosstalk, pointing error, and ASE noise." Optics Communications 475 (November 2020): 126219. http://dx.doi.org/10.1016/j.optcom.2020.126219.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Elsayed, Ebrahim E. "Atmospheric turbulence mitigation of MIMO-RF/FSO DWDM communication systems using advanced diversity multiplexing with hybrid N-SM/OMI M-ary spatial pulse-position modulation schemes." Optics Communications 562 (July 2024): 130558. http://dx.doi.org/10.1016/j.optcom.2024.130558.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Goyal, Vikas, and BS Dhaliwal. "Analysis of UWB Multiple Access Modulation Scheme using Pulse Position Modulation." GESJ: Computer Science and Telecommunications 45, no. 1 (2015): 77–82. https://doi.org/10.5281/zenodo.51461.

Full text

Abstract:

Ultra-wideband (UWB) uses narrow band pulses of nano-seconds to provide high data rate communications .These narrow pulses spread the energy across a wide frequency band that is why it is called ultra-wideband. In this paper, we will discuss the UWB pulse modulation and multiple access modulation schemes using Pulse Position Modulation technique .The simulations are done in MATLAB software.

APA, Harvard, Vancouver, ISO, and other styles

32

Yang, Jiarun. "FPGA-based PPM Modulation System Design." Highlights in Science, Engineering and Technology 53 (June 30, 2023): 98–107. http://dx.doi.org/10.54097/hset.v53i.9687.

Full text

Abstract:

As a widely used modulation technique in the field of communication, PPM modulation techniques have the advantages of high interference immunity, simple coding and high-power utilization, and are often applied in practical scenarios. PPM modulation techniques can be divided into three categories. single pulse position modulation, differential pulse position modulation and multi pulse position modulation. In different application scenarios, different kinds of pulse position modulation methods should be selected for modulation. In this paper, the frame structures of these three types of pulse po

APA, Harvard, Vancouver, ISO, and other styles

33

Aboltins, Arturs, Tatjana Solovjova, Janis Semenako, et al. "Passive Electrical and Optical Methods of Ultra-Short Pulse Expansion for Event Timer-Based TDC in PPM Receiver." Electronics 12, no. 22 (2023): 4634. http://dx.doi.org/10.3390/electronics12224634.

Full text

Abstract:

The energy efficiency of a communication system using pulse position modulation (PPM) can be increased by reducing the duration of the pulses transmitted over the communication channel to several tens of picoseconds. The employment of an event timer device as a time-to-digital converter (TDC) for demodulation allows the use of PPM with many pulse positions and achieves competitive data transfer speeds. However, along with several-picosecond accuracy of modern event timers, they require a pulse duration of several hundred picoseconds for precise detection. This research is devoted to developing

APA, Harvard, Vancouver, ISO, and other styles

34

Wang, Youran. "Analysis of bit error rate of pulse position modulation in free-space optical communication." Highlights in Science, Engineering and Technology 53 (June 30, 2023): 56–64. http://dx.doi.org/10.54097/hset.v53i.9682.

Full text

Abstract:

Pulse Position Modulation (PPM) modulation is a widely used modulation method in free-space optical (FSO) communication, which has many medium forms. This work introduces and summarises the three main PPM modulation methods, L-ary pulse position modulation (L-PPM), L-ary differential pulse position modulation (L-DPPM), and L-ary multiple pulse position modulation (L-MPPM), and summarises their respective characteristics and suitable usage scenarios. At the same time, this study analyzes several cases of combining coding methods with PPM modulation methods and finds that the right coding method

APA, Harvard, Vancouver, ISO, and other styles

35

Tang, Wenzhe, Sirui Wang, Yimeng Xu, and Zhouyue Yu. "The Research Process, Application, and the Future Development of Pulse-Position Modulation." Journal of Physics: Conference Series 2384, no. 1 (2022): 012026. http://dx.doi.org/10.1088/1742-6596/2384/1/012026.

Full text

Abstract:

Abstract With the development of digital communication, pulse-position modulation technology has become an important technology in wireless communication due to its efficient bandwidth utilization and sensitive detection efficiency. This study aims to provide some basic information on PPM. In the trend of rapid development of PPM, researchers have found that PPM plays an irreplaceable role, no matter in daily life or scientific research and development. To arouse people’s interest in PPM research, more people are attracted to participate in the study. It began with an introduction to the devel

APA, Harvard, Vancouver, ISO, and other styles

36

Liu, Yang, and Guoan Zhang. "Research on Modulations of Wireless Optical Communication System Based on RS Code under Weak Turbulence Atmosphere Channel." Applied Mechanics and Materials 556-562 (May 2014): 4945–49. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.4945.

Full text

Abstract:

The free space optical (FSO) system model is analyzed based on on-off keying (OOK), pulse position modulation (PPM), differential pulse position modulation (DPPM) and digital pulse interval modulation (DPIM) under the weak turbulence atmosphere. To improve the system performance, one effective way is to use forward error correction (FEC).The bit error rate (BER) calculating formula of uncoded system is derived under all above the modulations firstly, then as a benchmark, under the case of independent with identical distribution, the average bit error rates of RS coded system are derived, respe

APA, Harvard, Vancouver, ISO, and other styles

37

M., A. Ilyas, Othman Maisara, Talib Rahmat, et al. "Comparison study of 8-PPM, 8-DPIM, and 8-RDH-PIM modulator FPGA hardware design in term of bandwidth efficiency and transmission rate." Bulletin of Electrical Engineering and Informatics 9, no. 2 (2020): 707–15. https://doi.org/10.11591/eei.v9i2.1871.

Full text

Abstract:

In this paper, a performance study of 8-Pulse-Position Modulation (PPM), 8-Digital Pulse Interval Modulation (DPIM), and 8-Reverse Dual Header-Pulse Interval Modulation (RDH-PIM) implementation in Verilog hardware design language is presented. The hardware design is chosen over software design since it could provide much more flexibility in term of transmission rate and reduce the workload of the processor in the complete system. Using 50 MHz clock as the reference data clock speeds, the transmission rate recorded are 11.11 Msymbol/second or 33.33 Mbps, 9.09 Msymbol/s or 27.27 Mbps, and 6.25 M

APA, Harvard, Vancouver, ISO, and other styles

38

Xuan Quyen, Nguyen, Vu Van Yem, and Thang Manh Hoang. "A Chaotic Pulse-Time Modulation Method for Digital Communication." Abstract and Applied Analysis 2012 (2012): 1–15. http://dx.doi.org/10.1155/2012/835304.

Full text

Abstract:

We present and investigate a method of chaotic pulse-time modulation (PTM) named chaotic pulse-width-position modulation (CPWPM) which is the combination of pulse-position-modulation (PPM) and pulse-width modulation (PWM) with the inclusion of chaos technique for digital communications. CPWPM signal is in the pulse train format, in which binary information is modulated onto chaotically-varied intervals of position and width of pulses, and therefore two bits are encoded on a single pulse. The operation of the method is described and the theoretical evaluation of bit-error rate (BER) performance

APA, Harvard, Vancouver, ISO, and other styles

39

Ramlee, Nur Hazwani Binti. "Tunable Pulse Amplitude and Position Modulation Scheme." Journal of Applied Engineering & Technology (JAET) 4, no. 1 (2020): 11–19. http://dx.doi.org/10.55447/jaet.04.01.20.

Full text

Abstract:

In optical communication applications, there are always trade offs between system performance and costs. Therefore, there is need to design a modulation technique to prevent this problem in terms of their power and bandwidth requirements. Basic technique such as On Off Keying (OOK), Pulse Amplitude Modulation (PAM) and Pulse Position Modulation (PPM) have been validated as suitable for the optical wireless channel. The method employ amplitude and position modulation technique, a guaranteed system performance can be secured, without compromising power and bandwidth. The example model will stabi

APA, Harvard, Vancouver, ISO, and other styles

40

Kim, Jun-Young, Ji-Su Kim, Sang-Hong Park, and Won-Chang Lee. "Implementation of Variable Pulse Position Modulation Using a Cortex-M Processor for Visible Light Communication." Journal of Institute of Control, Robotics and Systems 21, no. 1 (2015): 76–79. http://dx.doi.org/10.5302/j.icros.2015.14.0113.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Ilyas, M. A., Maisara Othman, Rahmat Talib, et al. "Comparison study of 8-PPM, 8-DPIM, and 8-RDH-PIM modulator FPGA hardware design in term of bandwidth efficiency and transmission rate." Bulletin of Electrical Engineering and Informatics 9, no. 2 (2020): 707–15. http://dx.doi.org/10.11591/eei.v9i2.1871.

Full text

Abstract:

In this paper, a performance study of 8-Pulse-Position Modulation (PPM), 8-Digital Pulse Interval Modulation (DPIM), and 8-Reverse Dual Header-Pulse Interval Modulation (RDH-PIM) implementation in Verilog hardware design language is presented. The hardware design is chosen over software design since it could provide much more flexibility in term of transmission rate and reduce the workload of the processor in the complete system. Using 50 MHz clock as the reference data clock speeds, the transmission rate recorded are 11.11 Msymbol/second or 33.33 Mbps, 9.09 Msymbol/s or 27.27 Mbps, and 6.25 M

APA, Harvard, Vancouver, ISO, and other styles

42

Naffisa Naufal Andriani, Akhmad Hambali, and M. Irfan Maulana. "Analisis Kinerja Multiple Pulse Position Modulation terhadap Interferensi Lampu Neon pada Sistem VLC." Risenologi 6, no. 1b (2021): 25–32. http://dx.doi.org/10.47028/j.risenologi.2021.61b.241.

Full text

Abstract:

Visible Light Communication (VLC) technology is a wireless communication system that transmit information using the visible light spectrum. VLC has the advantage of not being affected by electromagnetic interference, but can be affected by interference from ambient light. There are two types of interference in the VLC system, namely natural interference from sunlight and ambient light interference from fluorescent or incandescent lamps. This study discusses the effect of fluorescent light interference on the VLC system using Multiple Pulse Position Modulation (MPPM) in a 10x10x3 meter room wit

APA, Harvard, Vancouver, ISO, and other styles

43

Yang, Chaozhong, Yulin Wang, Shifeng Li, and Wenhe Yan. "Experimental Study of a Signal Modulation Method to Improve eLORAN Data Channel Communications." Sensors 20, no. 22 (2020): 6504. http://dx.doi.org/10.3390/s20226504.

Full text

Abstract:

There are mainly two types of data modulation methods used for enhanced LOng-RAnge Navigation (eLORAN) systems: pulse position modulation (PPM) and supernumerary interpulse modulation (SIM). The typical application for PPM is tri-state PPM (3S-PPM), also known as Eurofix. The typical application for SIM is ninth pulse modulation. Both of these methods are phase modulation methods. Phase modulation coding, a very mature technology, is used at present. To achieve a better demodulation success rate of eLORAN digital modulation signals at longer distances, a method of using the transmitting statio

APA, Harvard, Vancouver, ISO, and other styles

44

Huyen, Nguyen Thi, Nguyen Le Cuong, and Pham Thanh Hiep. "Proposal of UWB-PPM with Additional Time Shift for Positioning Technique in Nondestructive Environments." Applied Sciences 10, no. 17 (2020): 6011. http://dx.doi.org/10.3390/app10176011.

Full text

Abstract:

The ultra-wide band (UWB) technology has many advantages in positioning and measuring systems; however, powers of UWB signals rapidly reduce while traveling in propagation environments, hence detecting UWB signals are difficult. Various modulation techniques are applied for UWB signals to increase the ability for detecting the reflected signal from transmission mediums, such as pulse amplitude modulation (PAM), pulse position modulation (PPM), and so on. In this paper, we propose an ultra-wide band pulse position modulation technique with optimized additional time shift (UWB-PPM-ATS) to enhanc

APA, Harvard, Vancouver, ISO, and other styles

45

Shi, Xianhua, Yimao Sun, Jie Tian, et al. "BER Performance Analysis of Non-Coherent Q-Ary Pulse Position Modulation Receivers on AWGN Channel." Sensors 21, no. 18 (2021): 6102. http://dx.doi.org/10.3390/s21186102.

Full text

Abstract:

This paper introduces the structure of a Q-ary pulse position modulation (PPM) signal and presents a noncoherent suboptimal receiver and a noncoherent optimal receiver. Aiming at addressing the lack of an accurate theoretical formula of the bit error rate (BER) of a Q-ary PPM receiver in the additive white Gaussian noise (AWGN) channel in the existing literature, the theoretical formulas of the BER of a noncoherent suboptimal receiver and noncoherent optimal receiver are derived, respectively. The simulation results verify the correctness of the theoretical formulas. The theoretical formulas c

APA, Harvard, Vancouver, ISO, and other styles

46

Koseeyaporn, Jeerasuda, Paramote Wardkein, Ananta Sinchai, Chanapat Kaew-in, and Panwit Tuwanut. "Simplified Derivative-Based Carrierless PPM Using VCO and Monostable Multivibrator." Applied Sciences 15, no. 11 (2025): 6272. https://doi.org/10.3390/app15116272.

Full text

Abstract:

This study proposes a derivative-based, carrierless pulse position modulation (PPM) scheme utilizing a voltage-controlled oscillator (VCO) and a monostable multivibrator. In contrast to conventional PPM systems that rely on reference carriers or complex demodulation methods, the proposed architecture simplifies signal generation by directly modulating the time derivative of the message signal. The modulated signal, when processed through standard analog demodulators, inherently yields the derivative of the original message. This behavior is first established through theoretical derivations and

APA, Harvard, Vancouver, ISO, and other styles

47

Wisartpong, Pichet, Vorapong Silaphan, Sunee Kurutach, and Paramote Wardkein. "Current mode pulse width modulation/pulse position modulation based on phase lock loop." Journal of Electrical Engineering 68, no. 3 (2017): 180–87. http://dx.doi.org/10.1515/jee-2017-0026.

Full text

Abstract:

Abstract In this paper, the fully integrated CMOS current mode PLL with current input injects at the place of input or output of the loop filter without summing amplifier circuit. It functions as PPM and PWM circuit is present. In addition, its frequency response is an analysis which electronic tuning BPF and LPF are obtained. The proposed circuit has been designed with 0.18 μm CMOS technology. The simulation results of this circuit can be operated at 2.5 V supply voltage, at center frequency 100 MHz. The linear range of input current can be adjusted from 43 μA to 109 μA, and the corresponding

APA, Harvard, Vancouver, ISO, and other styles

48

Wang, Peng, Jie Tian, Duoye Li, Peng Fei, and Xianhua Shi. "A Novel Non-Coherent Q-Ary TH-PPM Transceiver." Sensors 24, no. 1 (2023): 105. http://dx.doi.org/10.3390/s24010105.

Full text

Abstract:

Time-hopping pulse position modulation (TH-PPM) stands out as a secure communication due to the pseudo-random characteristics of its time-hopping sequence. However, the conventional TH-PPM transceiver encounters challenges in implementation, particularly in achieving the requisite high precision for synchronization. This paper introduces a novel non-coherent Q-ary TH-PPM transceiver, designed to surpass the Bit error rate (BER) performance of conventional TH-PPM transceivers in scenarios under non-ideal synchronization conditions, which also being straightforward to implement. Firstly, we prov

APA, Harvard, Vancouver, ISO, and other styles

49

Kandouci, Chahinaz. "Performances enhancement of underwater wireless optical communications (UWOC) using pulse position modulation." Journal of Optical Communications 43, no. 2 (2021): 289–94. http://dx.doi.org/10.1515/joc-2021-0176.

Full text

Abstract:

Abstract In this work, we study the performance analysis of underwater optical wireless communication (UOWC) transmission link by incorporating optical code division multiple access (OCDMA) using pulse position modulation (PPM) to enhance the channel range and cardinality. Bit error rate (BER) variations are examined versus the range, modulation type (on–off keying (OOK), quadrature amplitude modulation (QAM), etc.), number of users as well as the channel attenuation caused by different water types. The power and transmitter inclination angle limitation, of the enhanced system, are also presen

APA, Harvard, Vancouver, ISO, and other styles

50

Leander, Johan, Jonatan Klaminder, Micael Jonsson, Tomas Brodin, Kjell Leonardsson, and Gustav Hellström. "The old and the new: evaluating performance of acoustic telemetry systems in tracking migrating Atlantic salmon (Salmo salar) smolt and European eel (Anguilla anguilla) around hydropower facilities." Canadian Journal of Fisheries and Aquatic Sciences 77, no. 1 (2020): 177–87. http://dx.doi.org/10.1139/cjfas-2019-0058.

Full text

Abstract:

Acoustic telemetry represents the state-of-the-art technology for monitoring behaviour of aquatic organisms in the wild. Yet, the performance of different systems is rarely evaluated across species and environments. In this study, we evaluate two different acoustic telemetry systems, a commonly used analogue pulse-position-modulation-based system (VEMCO PPM) and a newly developed high-residency digital binary phase shift key-based system (VEMCO HR2), in ability to track downstream migrating Atlantic salmon smolt (Salmo salar) and European eel (Anguilla anguilla) around hydropower facilities. H

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!