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Modulation of Laser Light
Analog and digital modulation of semiconductor lasers are introduced. A distinction is made between ideal bits and bits at high and low transmission...
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The Concept of Modulation
The purpose of this chapter is to gently introduce the concept of modulation in the power electronics domain. The reason for the use of the word...
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Baseband Modulation
The basic way radios increase their spectral efficiency is by combining multiple bits into a single symbol, a process known as baseband modulation....
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Modulation von Laserlicht
Analoge und digitale Modulation von Halbleiterlasern werden eingeführt. Dabei wird zwischen idealem Bit und Bits bei hoher bzw. niedriger...
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Amplitude Modulation
A common lay definition of the verb to modulate is “to tune to a certain key or pitch.” In amplitude modulation, this is precisely what is being...
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Digital Modulation: The Basic Principles
The fundamental modulation methods used in 5G are Pi/2 BPSK, QPSK, 16-QAM, 64-QAM, 256-QAM, and 1024-QAM. These are the methods, therefore, that we...
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Modulation and Coding
Somebody might ask why modulation and channel coding are in the same chapter. My answer is that these are two essential components of all modern...
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Coded Modulation
For the digital communications systems discussed thus far in the book, we have assumed that coding (operations on the binary data stream) and...
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Digital Modulation in Detail
This chapter reviews digital modulation concepts. Tell the story of the “G River Boatman” about the concept of OFDMA and SC-FDMA modulation scheme.
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Phase and Frequency Modulation
Amplitude modulation is often called linear modulation, since superposition applies for AMDSB-SC systems. For instance, in AMDSB-SC if a message...
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Digital Modulation: The Basic Principles
The fundamental modulation methods used in 5G NR are Pi/2 BPSK, QPSK, 16-QAM, 64-QAM, and 256-QAM. Those used in Wi-Fi 6 are BPSK, QPSK, 16-QAM,...
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Pulse Modulation
This chapter is concerned with different types of modulations: Pulse Amplitude Modulation, Pulse Width Modulation, Pulse Position Modulation, Pulse...
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Performance Analysis of Automatic Modulation Classification Method for Different Modulation Techniques Using CNN Algorithm
Automatic Modulation Classification is a technique for determining the modulation of a receiving signal. IoT devices receive signals from numerous...
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Angle Modulation
This chapter covers angle modulation, including frequency modulation and phase modulation, frequency-shift keying (FSK) and phase-shift keying (PSK),...
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Modulation Schemes
The process of adding information to an optical wave in UWOC is modulation. A modulator is an electro-optical converter that causes a parameter of...
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Angle Modulation
In this chapter, Frequency and Phase modulations, clubbed together as angle modulation is treated. Frequency modulation implies that the frequency of...
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Noise in Analog Modulation
When designing a communication system, the electrical engineer is usually confronted with limitations on transmitted power and available bandwidth....
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Amplitude Modulation
Amplitude modulation is a method of information transference, using a carrier frequency, which is much larger than maximum frequency of the...
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Spreading Code Authentication Technique Based on CSK Modulation
GNSS civil signal interface standard is open, malicious attackers can generate legitimate navigation signals according to the interface control...
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Modulation Recognition Based on BP Neural Network
In the real wireless communication applications, there are always existing multiple signal modulation schemes. To complete the demodulation of...