๐ Overview of QAM ๐งฎ MATLAB Code for m-ary QAM (4-QAM, 16-QAM, 32-QAM, ...) ๐งฎ Online Simulator for M-ary QAM Constellations ๐ Further Reading ๐ Other Topics on Constellation Diagrams of QAM configurations ... ๐งฎ MATLAB Code for 4-QAM ๐งฎ MATLAB Code for 16-QAM ๐งฎ MATLAB Code for m-ary QAM (4-QAM, 16-QAM, 32-QAM, ...) ๐งฎ Simulator for constellation diagrams of m-ary PSK ๐งฎ Simulator for constellation diagrams of m-ary QAM ๐งฎ Overview of Energy per Bit (Eb / N0) ๐งฎ Online Simulator for constellation diagrams of ASK, FSK, and PSK ๐งฎ Theory behind Constellation Diagrams of ASK, FSK, and PSK ๐งฎ MATLAB Codes for Constellation Diagrams of ASK, FSK, and PSK QAM Unlike this, the M-ary PSK signal is modulated with a different phase-shifted version of the carrier signal and varying amplitude levels. Let me give an example for better comprehension. QAM = ASK +...
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๐ Overview ๐งฎ Baseband and Passband Implementations of ASK, FSK, and PSK ๐งฎ Difference betwen baseband and passband ๐ Further Reading ๐ Other Topics on Baseband and Passband ... ๐งฎ Baseband modulation techniques ๐งฎ Passband modulation techniques Baseband modulation techniques are methods used to encode information signals onto a baseband signal (a signal with frequencies close to zero), allowing for efficient transmission over a communication channel. These techniques are fundamental in various communication systems, including wired and wireless communication. Here are some common baseband modulation techniques: Amplitude Shift Keying (ASK) [↗] : In ASK, the amplitude of the baseband signal is varied to represent different symbols. Binary ASK (BASK) is a common implementation where two different amplitudes represent binary values (0 and 1). ASK is simple but susceptible to noise...
๐ Overview of BER and SNR ๐งฎ Online Simulator for BER calculation of m-ary QAM and m-ary PSK ๐งฎ MATLAB Code for BER calculation of M-ary QAM, M-ary PSK, QPSK, BPSK, ... ๐ Further Reading ๐ View Other Topics on M-ary QAM, M-ary PSK, QPSK ... ๐งฎ Online Simulator for Constellation Diagram of m-ary QAM ๐งฎ Online Simulator for Constellation Diagram of m-ary PSK ๐งฎ MATLAB Code for BER calculation of ASK, FSK, and PSK ๐งฎ MATLAB Code for BER calculation of Alamouti Scheme ๐งฎ Different approaches to calculate BER vs SNR What is Bit Error Rate (BER)? The abbreviation BER stands for bit error rate, which indicates how many corrupted bits are received (after the demodulation process) compared to the total number of bits sent in a communication process. It is defined as, In mathematics, BER = (number of bits received in error / total number of transmitted bits) On the other hand, SNR ...
๐ Comparisons among ASK, FSK, and PSK ๐งฎ Online Simulator for calculating Bandwidth of ASK, FSK, and PSK ๐งฎ MATLAB Code for BER vs. SNR Analysis of ASK, FSK, and PSK ๐ Further Reading ๐ View Other Topics on Comparisons among ASK, PSK, and FSK ... ๐งฎ Comparisons of Noise Sensitivity, Bandwidth, Complexity, etc. ๐งฎ MATLAB Code for Constellation Diagrams of ASK, FSK, and PSK ๐งฎ Online Simulator for ASK, FSK, and PSK Generation ๐งฎ Online Simulator for ASK, FSK, and PSK Constellation ๐งฎ Some Questions and Answers Modulation ASK, FSK & PSK Constellation MATLAB Simulink MATLAB Code Comparisons among ASK, PSK, and FSK Comparisons among ASK, PSK, and FSK Simulator for Calculating Bandwidth of ASK, FSK, and PSK The baud rate represents the number of symbols transmitted per second. Both baud rate and bit rate a...
๐ Overview of Energy per Bit (Eb / N0) ๐งฎ Online Simulator for constellation diagrams of ASK, FSK, and PSK ๐งฎ Theory behind Constellation Diagrams of ASK, FSK, and PSK ๐งฎ MATLAB Codes for Constellation Diagrams of ASK, FSK, and PSK ๐ Further Reading ๐ Other Topics on Constellation Diagrams of ASK, PSK, and FSK ... ๐งฎ Simulator for constellation diagrams of m-ary PSK ๐งฎ Simulator for constellation diagrams of m-ary QAM BASK (Binary ASK) Modulation: Transmits one of two signals: 0 or -√Eb, where Eb is the energy per bit. These signals represent binary 0 and 1. BFSK (Binary FSK) Modulation: Transmits one of two signals: +√Eb ( On the y-axis, the phase shift of 90 degrees with respect to the x-axis, which is also termed phase offset ) or √Eb (on x-axis), where Eb is the energy per bit. These signals represent binary 0 and 1. BPSK (Binary PSK) Modulation: Transmits one of two signals...
๐ Overview & Theory of Pulse Amplitude Moduation (PAM) ๐งฎ MATLAB Code for Pulse Amplitude Modulation and Demodulation of Analog Signal and Digital Signal ๐งฎ Simulation results for comparison of PAM, PWM, PPM, DM, and PCM ๐ Further Reading ๐ Other Topics on Pulse Amplitude Modulation ... ๐งฎ MATLAB Code for Pulse Amplitude Modulation and Demodulation of an Analog Signal (2) ๐งฎ MATLAB Code for Pulse Amplitude Modulation and Demodulation of Digital data ๐งฎ Other Pulse Modulation Techniques (e.g., PWM, PPM, DM, and PCM) Pulse Amplitude Modulation (PAM) & Demodulation of an Analog Message Signal MATLAB Script clc; clear all; close all; fm= 10; % frequency of the message signal fc= 100; % frequency of the carrier signal fs=1000*fm; % (=100KHz) sampling frequency (where 1000 is the upsampling factor) t=0:1/fs:1; % sampling rate of (1/fs = 100 kHz) m=1*cos(2*pi*fm*t); % Message signal with per...
๐ Overview ๐งฎ Simulator for calculating BER ๐งฎ MATLAB Codes for calculating theoretical BER ๐งฎ MATLAB Codes for calculating simulated BER ๐ Further Reading BER vs. SNR denotes how many bits in error are received in a communication process for a particular Signal-to-noise (SNR) ratio. In most cases, SNR is measured in decibel (dB). For a typical communication system, a signal is often affected by two types of noises 1. Additive White Gaussian Noise (AWGN) 2. Rayleigh Fading In the case of additive white Gaussian noise (AWGN), random magnitude is added to the transmitted signal. On the other hand, Rayleigh fading (due to multipath) attenuates the different frequency components of a signal differently. A good signal-to-noise ratio tries to mitigate the effect of noise. Simulator for calculating BER vs SNR for binary ASK, FSK, and PSK Calculate BER for Binary ASK Modulation The theoretical BER for binary ASK (BASK) in an AWGN channel is...
1. Introduction Most of the phenomena studied in the domain of Engineering and Science are periodic in nature. For instance, current and voltage in an alternating current circuit. These periodic functions could be analyzed into their constituent components (fundamentals and harmonics) by a process called Fourier analysis. A Fourier series is an expansion of a periodic function into a sum of trigonometric functions. The Fourier series is an example of a trigonometric series, but not all trigonometric series are Fourier series. Fourier series is used to describe a periodic signal in terms of cosine and sine waves. In other words, it allows us to model any arbitrary periodic signal with a combination of sines and cosines. Fig: Sine Wave Fig: Triangular Wave Fig: Sawtooth Wave Fig: Square Wave 2. The common form of the Fourier series Sinusoidal functions are periodic over 2ฯ angular distance. For a perio...