Search results
Results from the WOW.Com Content Network
Statistical and physical modeling can be combined. For example, in wireless communications the channel is often modeled by a random attenuation (known as fading) of the transmitted signal, followed by additive noise. The attenuation term is a simplification of the underlying physical processes and captures the change in signal power over the ...
Paths of communication can be physical (e.g. the road as transportation route) or non-physical (e.g. networks like a computer network). Contents of communication can be for example photography, data, graphics, language, or texts. Means of communication in the narrower sense refer to technical devices that transmit information. [5]
This is an accepted version of this page This is the latest accepted revision, reviewed on 7 March 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 as ...
Each station in this example is separated from its adjacent stations by 200 kHz, and the difference between 200 kHz and 180 kHz (20 kHz) is an engineering allowance for the imperfections in the communication system. In the example above, the free space channel has been divided into communications channels according to frequencies, and each ...
Many models of communication include the idea that a sender encodes a message and uses a channel to transmit it to a receiver. Noise may distort the message along the way. The receiver then decodes the message and gives some form of feedback. [1] Models of communication simplify or represent the process of communication.
Mass media or mass communications are examples of non-personal channels since the message is sent to many individuals at one time. Non-personal channels of communication are made up out of two main types, the first being print. Print media includes newspapers, magazines, direct mail, and billboards.
The choice of the right channel affects successful communication. For example, a classroom teacher has to decide which contents to present orally, by talking about them, and which ones to present visually through books. The choice also depends on the receiver whose decoding skills may be better for some channels than for others. [51] [60]
An optical communication system is any form of communications system that uses light as the transmission medium. 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.