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In wireless communications, channel state information (CSI) is the known channel properties of a communication link. This information describes how a signal propagates from the transmitter to the receiver and represents the combined effect of, for example, scattering, fading, and power decay with distance. The method is called channel estimation.
The radio channel between an amateur radio repeater and an amateur radio operator uses two frequencies often 600 kHz (0.6 MHz) apart. For example, a repeater that transmits on 146.94 MHz typically listens for a ham transmitting on 146.34 MHz. All of these communication channels share the property that they transfer information.
As Daft and Lengel suggest, face-to-face communication is the best medium for equivocal, or complex, communication between two people, whereas less-rich mediums can be effective so long as the complexity of the information being transferred from one party to the other does not exceed the channel's capacity. [3]
Media richness theory (MRT), sometimes referred to as information richness theory, is a framework used to describe a communication medium's ability to reproduce the information sent over it. It was introduced by Richard L. Daft and Robert H. Lengel in 1986 as an extension of information processing theory .
Feedback capacity is the greatest rate at which information can be reliably transmitted, per unit time, over a point-to-point communication channel in which the receiver feeds back the channel outputs to the transmitter. Information-theoretic analysis of communication systems that incorporate feedback is more complicated and challenging than ...
The five essential parts of the Shannon–Weaver model: A source uses a transmitter to translate a message into a signal, which is sent through a channel and translated back by a receiver until it reaches its destination. [1] The Shannon–Weaver model is one of the first models of communication.
This is an accepted version of this page This is the latest accepted revision, reviewed on 27 January 2025. Transmission of information For other uses, see Communication (disambiguation). "Communicate" redirects here. For other uses, see Communicate (disambiguation). There are many forms of communication, including human linguistic communication using sounds, sign language, and writing as well ...
In 2020, the International Association for Measurement and Evaluation of Communication (AMEC) organised a committee of industry experts to review, update and evolve the Barcelona Principles. The committee, led by Dr David Rockland, sought to adapt the principles to "sharpen the communications industry's focus on inclusion, impact, and integrity."