Amplitude Modulation

In this paper, we propose an effective AMC using deep learning (DL) for flexible and adaptive OFDM-based optical networks. The proposed DL-based AMC is able to classify four typical modulation schemes such as binary phase-shift keying (BPSK), quadrature PSK (QPSK), 8-PSK, and 16- quadrature amplitude modulation (QAM) in dynamic network conditions.

6p vithomson 02-07-2024 0 0   Download

We present a novel low-power architecture for the generation of multilevel pulse amplitude modulation (PAM-4) signal generation. A new structure of a micro-ring resonator based on a 44 MMI (Multimode interference) coupler is proposed to control the coupling coefficient and Fano shapes.

11p viambani 18-06-2024 1 1   Download

Bài giảng "Nhập môn Kỹ thuật truyền thông: Bài 9.1 - Không gian tín hiệu PAM (Pulse Amplitude Modulation)" trình bày các nội dung chính sau đây: Các kỹ thuật điều chế số; Điều chế băng tần cơ sở; Điều chế băng tần dải qua;... Mời các bạn cùng tham khảo!

38p gaupanda031 04-05-2024 3 2   Download

Part 1 book "Principles of electronic communication systems" includes content: Introduction to electronic communication; electronic fundamentals for communications; amplitude modulation fundamentals; amplitude modulator and demodulator circuits; fundamentals of frequency modulation; FM circuits; digital communication techniques; radio transmitters; communication receivers; multiplexing and demultiplexing; digital data transmission.

448p muasambanhan06 03-02-2024 3 1   Download

Part 1 book "Fundamentals of communication systems" includes content: Introduction, signals and linear systems, amplitude modulation, angle modulation, probability and random processes, effect of noise on analog communcation systems, analog to digital conversion, digital modulation methods in an additive white gaussian noise channel.

505p muasambanhan06 03-02-2024 6 2   Download

Part 1 book "Principles of electronic communication systems" includes content: Introduction to electronic communication; electronic fundamentals for communications; amplitude modulation fundamentals; amplitude modulator and demodulator circuits; fundamentals of frequency modulation; FM circuits; digital communication techniques; radio transmitters; communication receivers; multiplexing and demultiplexing.

388p muasambanhan06 03-02-2024 4 1   Download

In the present study, we report changes in ileal motility after gravity-stress with and without Sansho intake in male and female rats. Ileal movements were activated by topical Acetylcholine (Ach) application, and maximum amplitudes (MA) of the evoked contraction were compared.

4p viisac 23-09-2023 7 1   Download

Part 1 book "Modern digital and analog communication systems" includes content: Introduction, signals and signal space, analysis and transmission of signals, amplitude modulations and demodulations, angle modulation and demodulation, sampling and analog to digital conversion, principles of digital data transmission.

415p oursky02 07-08-2023 6 5   Download

Lecture "Signals & systems - Lesson 8: Applications of fourier representations" provide students with content knowledge such as: convolution of periodic and nonperiodic signals; mixed-signal convolution illustration; amplitude modulation; data truncation (windowing);... We invite you to take a look at the content of the lecture.

37p phuong3676 23-06-2023 6 4   Download

Ebook Theory and design of electronic circuits: Part 2 presents the following content: Chap: 20 Passive networks as adapters of impedance; Chap: 21 Passive networks as filters of frequency (I Part); Chap: 22 Passive networks as filters of frequency (II Part); Chap: 23 Active networks as filters of frequency; Chap: 24 Active networks as filters of frequency II part; Chap: 25 Amplitude Modulation; Chap: 26 Demodulación of Amplitude; Chap: 27 Modulation of Angle; Chap: 28 Demodulation of Angle; Chap: 29 Heterodyne receivers;…

281p runthenight08 16-05-2023 3 1   Download

This paper presents the theoretical analysis of the average symbol error rate (ASER) of free space optical (FSO) communication system combined with multiple-input multiple-output (MIMO) relay based on Amplify-and-Forward (AF) technique employing subcarrier quadrature amplitude modulation (SC-QAM) signal over strong atmospheric turbulence, which is modeled by Gamma-Gamma distributions and pointing error.

5p vijaguar 16-11-2022 4 1   Download

This paper presents the theoretical analysis of misalignment fading effects on performance of free-space optical (FSO) communication system based on Amplify-and-Forward (AF) relaying technology. This system uses subcarrier quadrature amplitude modulation (SC-QAM) over weak atmospheric turbulence modelled by Log-Normal distribution.

5p vispyker 16-11-2022 13 3   Download

Advanced Computer Networks: Lecture 6. This lecture will cover the following: Quadrature Amplitude Modulation (QAM); constellation pattern for V.32 QAM; 2-dimensional representation; bit rate and baud rate; synchronization recovery; sentinel based approach; byte-oriented, variable-length, data-dependent;...

46p haoasakura 30-05-2022 18 4   Download

Lecture Analog communication techniques. After completing this section, you will understand knowledge about: signals and spectra, random variables and processes, amplitude modulation systems, angle modulation, pulse modulation and digital transmission of analog signal, mathematical representation of noise, linear filtering of noise,...

71p bachkhinhdaluu 03-12-2021 11 1   Download

Lecture ELEC3540 analog and digital communications: Chapter 3- Analog amplitude modulation. After completing this section, you will understand the knowledge about concept of modulation; DSBSC, DSCTC, SSB, VSB; modulators and demodulators; Performance and design considerations.

22p lazzaro 03-12-2021 13 3   Download

Lecture Data Communication: Lesson 17 present the content: digital-to analog conversion, bit rate and baud rate, carrier signals, amplitude shift keying (ASK), frequency shift keying (FSK), phase shift keying (PSK), quadrature amplitude modulation (QAM),...

21p bachdangky 06-09-2021 1 1   Download

Lecture Data Communication: Lesson 18 present the content: digital-to analog conversion, frequency shift keying (FSK), phase shift keying (PSK), quadrature amplitude modulation (QAM), effect of noise on FSK, bandwidth of FSK,...

25p bachdangky 06-09-2021 7 1   Download

Lecture Data Communication: Lesson 19 present the content: analog-to analog conversion, amplitude modulation, frequency modulation, phase modulation, AM band allocation, FM band allocation, conversion methods,...

22p bachdangky 06-09-2021 5 1   Download

Lecture Data Communication: Lesson 16 present the content: analog-to-digital conversion, pulse amplitude modulation (PAM), pulse code modulation (PCM), quantization, binary encoding, digital-to-digital conversion,...

30p bachdangky 06-09-2021 8 1   Download

The analytic expressions for the absorption coefficient (ACF) of a weak electromagnetic wave (EMW) caused by confined electrons in the presence of laser radiation modulated by amplitude in doped superlattices (DSL) are obtained by using the quantum kinetic equation for electrons in the case of electron–optical phonon scattering.

11p tamynhan8 04-11-2020 15 2   Download