Modulation techniques - PowerPoint PPT Presentation


Comparative Analysis of Pulse and Amplitude Modulations in Cellular Applications

Explore the comparison between various pulse modulations like PM1 and PM3, alongside amplitude modulation (AM) in the context of cellular technologies such as 2G, 4G(LTE), and advances in 5G NR. The discussion includes considerations of modulation frequency, duty cycles, and spectrum analysis to und

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Regulation of Energy Homeostasis by AMPK System and Its Modulation Factors

The AMPK system plays a crucial role in regulating energy homeostasis by sensing the cellular AMP:ATP ratio and responding to metabolic stresses that affect ATP production or consumption. AMPK is activated by factors such as hypoxia, glucose deprivation, and metabolic inhibitors, as well as by compo

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IEEE 802.11-20/0456r0: Transmission EVM Requirements for 4k QAM

The document discusses the tradeoff between error vector magnitude (EVM) and transmission power in the context of 4k QAM modulation. It explores the EVM requirements for 4k QAM and addresses issues such as channel estimation errors, modulation and coding scheme (MCS) parameters, and degradation with

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Understanding Pulse Width Modulation in Embedded Systems

Pulse Width Modulation (PWM) is a technique that uses a rectangular pulse wave to modulate the pulse width, controlling power delivery to devices effectively. It involves altering the average value of a waveform by switching it on and off within a specified period. PWM has various applications, from

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Understanding High Frequency Radio Communications and ALE

High Frequency (HF) radio communications, specifically using Single Side Band (SSB) modulation, are essential for effective long-distance communication. The components of an HF radio system include a transceiver, antenna, and power source. By utilizing the ionosphere, HF/SSB modulation enables cost-

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Understanding Performance Analysis of Digital Modulation Techniques

Explore the realm of digital modulation techniques such as ASK, FSK, PSK, QPSK, QAM, and more. Learn about bandwidth efficiency, baud rates, minimum bandwidth, and how to calculate them. Discover the importance of M-ary modulation and how it impacts data transmission rates and bandwidth requirements

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Understanding Radio Transmitters: Classifications and Types

This comprehensive guide delves into the world of radio transmitters, covering their classifications based on modulation, service involved, frequency range, and power used. Learn about different types of modulation transmitters, service-specific transmitters, carrier frequency-based transmitters, an

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Understanding SSB-SC Modulation in Analog Communication

Single Sideband Suppressed Carrier (SSB-SC) modulation is a technique in analog communication that transmits a single sideband along with the carrier signal, offering advantages such as reduced bandwidth consumption, increased signal transmission capacity, and lower noise interference. However, the

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Understanding Digital Communication and Sampling Theory in Computer Engineering

Digital communication in the context of computer engineering involves representing information in binary form for transmission. Sampling theory plays a key role in pulse modulation techniques, noise management, and modulation schemes like ASK, PSK, FSK, and QPSK. This course covers various topics su

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Analogue Communication: DSB-SC Modulation in Computer Engineering

Explore the world of Analogue Communication through Double Sideband Suppressed Carrier Modulation (DSB-SC) in the Computer Engineering Department at the University of Mustansiriyah. Delve into lectures covering the fundamentals and intricacies of this modulation technique under the guidance of Dr. H

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Exploring 5G Smartphone RF Front End Technology

Delve into the world of 5G smartphone RF front end technology covering aspects like 4G/5G dual connectivity, path loss in radio links, frequency plan, channel capacity, front end architecture, MIMO modules, envelope tracking power amplifier, and more. Discover the features of 5G RF front end includi

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Understanding Pulse Code Modulation (PCM) in Analog to Digital Conversion

This content delves into the realm of Pulse Code Modulation (PCM), outlining its significance in converting analog data to digital signals. It covers the process of Analog to Digital Conversion, emphasizing the advantages of digitizing analog signals for improved quality and reduced noise. The steps

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Understanding Digital Modulation in Data Transmission

Delve into the world of digital modulation for data transmission, exploring various modulation schemes, digital-to-analog conversion processes, the importance of digital modulation in mixed networks, and the fundamentals of modulation and demodulation.

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Modulation Schemes for IEEE 802.11bd Range Extension

The document discusses modulation schemes for extending the range in IEEE 802.11bd, aiming for at least 3dB lower sensitivity levels. It highlights the need for an implementation-friendly, proven technology already adopted in IEEE 802.11. The introduction of the MCS0 DCM scheme in 11ax is also cover

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Introduction to Quadrature Amplitude Modulation (QAM) in Digital Communication

Quadrature Amplitude Modulation (QAM) is a widely used modulation technique for transmitting data signals onto a carrier in communication systems. It offers advantages like increased efficiency by combining amplitude and phase variations, making it suitable for various radio and data delivery applic

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Signal Encoding Techniques in Networks and Communication

This chapter delves into signal encoding techniques used in digital data transmission, covering key concepts such as encoding schemes like NRZ-L and NRZI, multilevel binary encoding, and biphase encoding. It explores the fundamentals of digital signaling, modulation techniques, and the relationship

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Channeling 2014 - Summary of Hybrid Positron Source and Crystal Undulator Workshop

In Channeling 2014, a workshop was held discussing topics such as the hybrid positron source with granular converter, crystal undulator, and parametric X-ray radiation. The workshop presented the concept of a crystal radiator providing photons and an amorphous converter for positron production. Tech

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Understanding Sensory Strategies in the Classroom

Explore sensory modulation and its impact on everyday activities. Gain knowledge of sensory systems, levels of alertness, and practical strategies for regulating sensory input in educational settings. Discover the hidden senses, cognitive strategies, and techniques to maintain the Just Right State f

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Digital Communications Fundamentals and Applications in CTE Department 2018-2019

This content delves into the Digital Communications course in the CTE Department during the academic year 2018-2019. It covers topics such as Binary Amplitude Shift Keying (BASK), Generation and Detection of BASK, Differential Phase Shift Keying (DPSK), DPSK Generator, and the application of Digital

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Understanding Microwave Tubes and Klystron Technology

Microwave tubes play a crucial role in high-frequency applications due to their efficiency and operating principles. Conventional tubes face limitations beyond 100MHz, while efficient microwave tubes utilize electron velocity modulation for power conversion. Klystron tubes, such as Reflex Klystron,

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Evolution of Software Defined Radio Systems

Software Defined Radio (SDR) revolutionizes radio communication by implementing traditional hardware components using software on a personal computer. With SDR, modulation techniques, security functions, and waveform requirements can be controlled through software, enabling flexibility and adaptabil

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CSK-Based OCC for Heavy Machinery Management on Construction Site

This document introduces a CSK-based OCC V2X communication link design for heavy machinery management on construction sites. The proposed data link model aims to facilitate the use of light communication in monitoring, logistics, and scheduling processes. It offers concept models for Vehicular Assis

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FLASH RF Gun Developments Seminar Highlights

Explore the advancements in FLASH RF gun developments presented by Sven Pfeiffer during the LLRF team FEL Seminar. Topics discussed include LLRF feedback, pulse width modulation, RF gun cooling systems, fast protection measures, and current challenges post-startup, offering valuable insights into pr

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Real-Time Digital Signal Processing Lab: Digital Pulse Amplitude Modulation (PAM)

Introduction to Digital Pulse Amplitude Modulation (PAM) in the context of Real-Time Digital Signal Processing Lab. Topics covered include pulse shaping, symbol mapping, baseband PAM transmission, and more. The content delves into bit-to-symbol conversion, symbol amplitude mapping, symbol period det

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Flicker Mitigation Solutions in IEEE802.15.7 PHYs

Flicker mitigation solutions for PHYs in IEEE802.15.7 were proposed by Sang-Kyu Lim and Tae-Gyu Kang from ETRI. The solutions address issues related to intra-frame flicker, inter-frame flicker, dimming support, and modulation schemes. Techniques such as RLL codes, Manchester coding, and PPM modulati

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Evaluation Results on Payload of Pulsed Modulation PHY for IEEE 802.15-18-0171-02-0013

This document presents the evaluation results on the payload of Pulsed Modulation PHY for TG13, focusing on detection probability, BER vs SNR for header and payload, and coding considerations. It discusses the application of RS code for payload simulations and highlights the adjustments made for suc

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Simulation Results for LC-Optimized PHY Proposal in July 2019

The document presents simulation results for an LC-optimized PHY proposal for TGbb based on G.9991 PHY. It includes details on the simulation setup, frame detection results, header modulation, coding simulation results, payload modulation, and coding simulation results. The setup involved various re

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Advanced Topics in Communication Systems: Lecture 18 Overview and Final Exam Details

In this lecture, we covered topics such as Spread Spectrum Modulation, Direct Sequence Spread Spectrum (DSSS), Interference Rejection, RAKE Receiver, and Multiuser Systems. The review of the previous lecture focused on OFDM design issues, including timing and frequency offset, peak-to-average power

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Understanding Digital Communications Techniques in CTE Department - 3rd Stage

Explore Differential Pulse Code Modulation (DPCM) and Delta Modulation (DM) concepts in digital communications, as outlined in the 2018-2019 curriculum of the CTE Department. Learn about encoding, quantization, error prediction, reconstruction at the receiver end, and the one-bit per sample transmis

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3GPP TSG-RAN WG4 Meeting #100-e Electronic Meeting Summary

The 3GPP TSG-RAN WG4 Meeting #100-e held discussions on defining EVM limits, modulation schemes, repeater requirements, and IMD requirements. Emphasis was placed on linking EVM levels to modulation schemes and declaring supported levels for repeaters. The meeting also addressed NF equivalent RF requ

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Error Rate Performance of OOK Modulation in AWGN Channels

This document discusses the error rate performance of On-off keying (OOK) modulation in Additive White Gaussian Noise (AWGN) channels, covering both coherent and non-coherent detection methods. The theoretical results and evaluations of OOK modulation in AWGN are reviewed, providing insights into op

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Mastering Public Speaking: Essential Vocalization and Delivery Techniques

High school graduates must hone their oral communication skills to succeed in the professional world. Public speaking involves a delicate balance of content, body language, and voice projection. From articulation and enunciation to voice quality and pitch modulation, mastering these elements can ele

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Real-Time Digital Signal Processing Lab: Matched Filtering and Digital Pulse Amplitude Modulation

Explore the concepts of transmitting one bit at a time, matched filtering, PAM systems, intersymbol interference, communication performance, and prevention of intersymbol interference in a two-level digital PAM system. The presentation covers topics like bit error probability, symbol error probabili

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Sub-femtosecond Bunch Length Diagnostic and Machine Performance Optimization

Characterizing bunch profiles of sub-ps pulses for machine performance optimization and understanding beam variations in emittance. Current bunch length measurement techniques are limited to a few fs, prompting the need for femtosecond resolution. Techniques like Coherent Radiation Interferometry an

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Comparison of Unequal Modulation and Unequal MCS in IEEE 802.11-23

The comparison between Unequal Modulation and Unequal MCS in the context of IEEE 802.11-23 discusses how these techniques handle spatial streams, modulation schemes, and coding rates to optimize throughput and MIMO gains. Unequal Modulation focuses on adjusting modulations per stream based on SNR co

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Evolution of Communication Systems: From Bandwidth Division to Spread Spectrum

Third-generation communication systems utilize Pseudo-Noise (PN) codes to share bandwidth without interference, while first and second-generation systems divide bandwidth into smaller channels. PN codes are vectors with 1s and -1s, orthogonal to each other. Users transmit data using PN coding, combi

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January 2016 IEEE 802.11-16/0104r0: Rate Matching for HE-SIG-B

The document from January 2016 focuses on rate matching for HE-SIG-B in IEEE 802.11-16/0104r0 standard. It delves into the encoding/decoding structure, example of SIG-B with code-rate, MCS table, proposed encoding method for HE-SIG-B, and the structure of HE-SIG-B per-STA information field. The cont

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Understanding Modulation and Tonal Hierarchies in Music Perception

This research explores how expertise influences the perception of modulation in Western and South Indian classical music, focusing on tonal hierarchies, pitch importance, modulation processes, and memory for melodies. Through experiments involving listeners rating probe tones against music excerpts,

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Maximizing Throughput in IEEE 802.11 Networks Through Unequal Modulation Strategies

The documents discuss the benefits of using unequal modulation over spatial streams in IEEE 802.11 networks to enhance throughput. Unequal modulation allows for adapting modulation schemes based on Signal-to-Noise Ratio (SNR) conditions, optimizing MIMO gains and coding rates for each spatial stream

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Potential of Non-Uniform Constellations for Peak Power Constraint in SC Modulation

This document discusses the potential of non-uniform constellations (NUCs) for single carrier (SC) modulation, focusing on the design of NUCs with 64 signal points to maximize coding gain while adhering to peak-to-average power ratio (PAPR) constraints. NUCs show a significant overall gain of up to

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