"A transfer and reception of data in the form of a digital bitstream or a digitized analog signal transmitted over a communication channel."
Study of the principles and practices of digital communication signals and systems that use discrete signals or waveforms for transmitting information.
Analog and Digital Signals: Detailed study of electrical signal types such as continuous signals, discrete signals, analog signals, and digital signals.
Fourier Series/Fourier Transform: Analysis of periodic/full waveforms and diverse spectral content representation.
Modulation Techniques: The method of transmitting varied data types over a carrier wave by either altering the amplitude, frequency, or phase of the signal.
Channel Capacity and Shannon’s Law: Channel capacity and the highest channel capacity limit imposed by a specific channel's characteristics.
Noise and Signal-to-Noise Ratio: Comprehensive understanding of noise properties and how they influence transmission quality.
Pulse Code Modulation: The method for encoding audio signals into digital signals by testing analog audio signals at proper intervals.
Error Control Coding: The application of error-correcting codes to help improve communication quality despite channel impairments and noise.
Multiple Access Techniques: The strategy of providing multiple users access to the same communication channel via the utilization of varied techniques such as Code Division Multiple Access (CDMA), Frequency Division Multiple Access(FDMA), and Time Division Multiple Access (TDMA).
Spread Spectrum Techniques: A technique for transmitting data over a wide frequency band using noise-like signals.
Digital Line Coding: The practice of converting binary data sequences into digital data suitable for transmission with added noise resistance.
Equalization: A technique utilized in digital communication for combating the effects of distortion resulting from attenuation and dispersion when data is transmitted across a channel.
Synchronization Techniques: The method for ensuring that transmitted digital data conforms to prescribed time intervals in order to prevent data loss or errors during communication.
Digital Communication Systems Architecture: An overview of the fundamental interconnections structures and interfaces which make up a digital communication system.
Networking and Routing Protocols: The study of protocols utilized for routing data throughout a digital network such as Internet Protocol (IP), Transmission Control Protocol(TCP), and User Datagram Protocol (UDP).
Wireless Communication: An overview of wireless digital communication with different techniques such as Wi-Fi, Bluetooth, and cellular network.
Wired Communication Systems: This type of communication system uses physical cables or wires to transmit data and information from one point to another. This includes technologies like Ethernet, cable TV, and telephone lines.
Wireless Communication Systems: These systems transmit information or data over radio waves without the need for physical cables. Examples include Wi-Fi, Bluetooth, satellite communication, and cellular communication.
Optical Communication Systems: Optical communication systems use light to transmit data or information. Fiber optics technology is the most common example of optical communication systems.
Satellite Communication Systems: Satellite communication involves the use of orbiting communication satellites for transmitting data over long distances, such as from one continent to another.
Digital Broadcast Systems: These systems transmit audio, video or data signals over a wide area, for example, digital television, digital radio, or streaming services such as Netflix or YouTube.
Mobile Communication Systems: Communication systems specifically designed for mobile devices, like mobile phones or tablets, which use wireless (usually cellular) networks.
Landline Communication Systems: Landline communications include traditional phone lines, which rely on physical wires to transmit audio signals over long distances.
Local Area Network (LAN) Systems: A LAN is a communication system that is limited to a particular location, usually within a building or campus. LANs usually use Ethernet technology.
Global Positioning System (GPS): GPS is a system that uses satellite signals to provide position and navigational data, these systems are used for everything from personal navigation devices to global transportation logistics.
Telemetry Systems: Telemetry systems are specialized communication systems used for monitoring and control of remote systems or assets like water level, temperature monitoring, or remotely monitoring industrial processes.
Voice over IP (VoIP) Systems: VoIP systems are used to make and receive phone calls over the internet.
Video conferencing Systems: These systems allow video communication between two or more parties over an internet connection.
Remote Sensing Systems: In remote sensing, a device or system is used to obtain information about an object, area or phenomenon without coming in physical contact with it. Remote sensing systems are used in a huge range of areas for example in Agriculture, Weather, and Disaster management.
"Examples of such channels are copper wires, optical fibers, wireless communication using radio spectrum, storage media, and computer buses."
"The data are represented as an electromagnetic signal, such as an electrical voltage, radiowave, microwave, or infrared signal."
"Analog transmission is a method of conveying voice, data, image, signal, or video information using a continuous signal which varies in amplitude, phase, or some other property in proportion to that of a variable."
"The messages are either represented by a sequence of pulses by means of a line code (baseband transmission), or by a limited set of continuously varying waveforms (passband transmission)."
"The passband modulation and corresponding demodulation is carried out by modem equipment."
"According to the most common definition of digital signal, both baseband and passband signals representing bit-streams are considered as digital transmission."
"An alternative definition only considers the baseband signal as digital, and passband transmission of digital data as a form of digital-to-analog conversion."
"Digital messages originating from a data source, for example, a computer or a keyboard."
"This source coding and decoding is carried out by codec equipment."
"Analog signals such as a phone call or a video signal are digitized into a bit-stream, for example, using pulse-code modulation or more advanced source coding schemes."
"To receive data transmitted over a communication channel."
"Represented by a sequence of pulses by means of a line code."
"Using a limited set of continuously varying waveforms."
"Carrying out passband modulation and corresponding demodulation."
"Copper wires, optical fibers, wireless communication using radio spectrum, storage media, and computer buses."
"Transferred as a digital bitstream or a digitized analog signal."
"To perform source coding and decoding."
"Amplitude, phase, or some other property."
"Such as an electrical voltage, radiowave, microwave, or infrared signal."