Communication channel

channelchannelscommunications channelchannel modelChannel (communications)communication channelsdata channelvoice channelchannel noisepropagation channel
A communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking.wikipedia
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Telecommunication

telecommunicationscommunicationstelecom
A communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking.
Such transmission paths are often divided into communication channels which afford the advantages of multiplexing.

Transmission medium

mediumtransmission mediamedia
A communication channel refers either to a physical transmission medium such as a wire, or to a logical connection over a multiplexed medium such as a radio channel in telecommunications and computer networking.
Many different types of transmission media are used as communications channel.

Frequency-division multiplexing

frequency division multiplexingFDMfrequency division multiplex
In telecommunications, frequency-division multiplexing (FDM) is a technique by which the total bandwidth available in a communication medium is divided into a series of non-overlapping frequency bands, each of which is used to carry a separate signal.

Receiver (information theory)

receiverreceiversreceived
A channel is used to convey an information signal, for example a digital bit stream, from one or several senders (or transmitters) to one or several receivers.
The receiver in information theory is the receiving end of a communication channel.

Data signaling rate

data ratesdata ratesignaling rate
A channel has a certain capacity for transmitting information, often measured by its bandwidth in Hz or its data rate in bits per second.

Signaling (telecommunications)

signalsignalingout-of-band signaling
The information is carried through the channel by a signal.
Out-of-band signaling is telecommunication signaling on a dedicated channel separate from that used for the telephone call.

Information transfer

communicationstransferconvey
A channel is used to convey an information signal, for example a digital bit stream, from one or several senders (or transmitters) to one or several receivers.
In telecommunications, information transfer is the process of moving messages containing user information from a source to a sink via a communication channel.

Binary symmetric channel

BSCq-ary symmetric channel
A binary symmetric channel (or BSC) is a common communications channel model used in coding theory and information theory.

Actor model and process calculi

issues with getting messages from multiple channelsmigrationSynchronous channels in process calculi

Information theory

information-theoreticinformation theoristinformation
In information theory, a channel refers to a theoretical channel model with certain error characteristics.
The latter is a property of the joint distribution of two random variables, and is the maximum rate of reliable communication across a noisy channel in the limit of long block lengths, when the channel statistics are determined by the joint distribution.

Arbitrarily varying channel

An arbitrarily varying channel (AVC) is a communication channel model used in coding theory, and was first introduced by Blackwell, Breiman, and Thomasian.

Marine VHF radio

marine radioVHF radioVHF
A marine VHF set is a combined transmitter and receiver and only operates on standard, international frequencies known as channels.

Binary erasure channel

erasure channelBECerasure channels
A binary erasure channel (or BEC) is a common communications channel model used in coding theory and information theory.

Packet erasure channel

The packet erasure channel is a communication channel model where sequential packets are either received or lost (at a known location).

Communications system

communication systemcommunication systemstelecommunications system
Equipment consists of a transmitter, which encodes a message into an optical signal, a communication channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal.

Crosstalk

cross-talkcross talkCrosstalk (electronics)
In electronics, crosstalk is any phenomenon by which a signal transmitted on one circuit or channel of a transmission system creates an undesired effect in another circuit or channel.

Distortion

distortedharmonic distortiondistort
In communications and electronics it means the alteration of the waveform of an information-bearing signal, such as an audio signal representing sound or a video signal representing images, in an electronic device or communication channel.

Wi-Fi

WiFiwireless internetwireless
Each range is divided into a multitude of channels.

Interference (communication)

interferenceInterferencesinterfere
In electronic communications, especially in telecommunications, an interference is that which modifies a signal in a disruptive manner, as it travels along a channel between its source and receiver.

Additive white Gaussian noise

AWGNadditive noiseadditive
AWGN is often used as a channel model in which the only impairment to communication is a linear addition of wideband or white noise with a constant spectral density (expressed as watts per hertz of bandwidth) and a Gaussian distribution of amplitude.

Intersymbol interference

Intersymbol Interference (ISI)inter-symbol interferenceInter-Symbol Interference (ISI)
ISI is usually caused by multipath propagation or the inherent linear or non-linear frequency response of a communication channel causing successive symbols to "blur" together.

Modulation

modulatedmodulatordigital modulation
The aim of digital modulation is to transfer a digital bit stream over an analog communication channel, for example over the public switched telephone network (where a bandpass filter limits the frequency range to 300–3400 Hz) or over a limited radio frequency band.

Burst error

error burstburstburst errors
In telecommunication, a burst error or error burst is a contiguous sequence of symbols, received over a communication channel, such that the first and last symbols are in error and there exists no contiguous subsequence of m correctly received symbols within the error burst.

Rayleigh fading

fadingtarget fading
Rayleigh fading models assume that the magnitude of a signal that has passed through such a transmission medium (also called a communication channel) will vary randomly, or fade, according to a Rayleigh distribution — the radial component of the sum of two uncorrelated Gaussian random variables.