What is a channel what are its basic characteristics?
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A communication channel or simply channel refers either to a physical transmission mediumsuch as a wire, or to a logical connection over a multiplexedmedium such as a radio channel intelecommunications and computer networking. A channel is used toconvey an information signal, for example a digital bit stream, from one or several senders (or transmitters) to one or severalreceivers. A channel has a certain capacity for transmitting information, often measured by itsbandwidth in Hz or its data rate inbits per second.
Communicating data from one location to another requires some form of pathway or medium. These pathways, called communication channels, use two types of media:cable (twisted-pair wire, cable, and fiber-optic cable) and broadcast(microwave, satellite, radio, and infrared). Cable or wire line media use physical wires of cables to transmit data and information. Twisted-pair wire and coaxial cables are made of copper, and fiber-optic cable is made of glass.
In information theory, a channel refers to a theoretical channel modelwith certain error characteristics. In this more general view, a storage device is also a kind of channel, which can be sent to (written) and received from (reading ).
A communication channel or simply channel refers either to a physical transmission mediumsuch as a wire, or to a logical connection over a multiplexedmedium such as a radio channel intelecommunications and computer networking. A channel is used toconvey an information signal, for example a digital bit stream, from one or several senders (or transmitters) to one or severalreceivers. A channel has a certain capacity for transmitting information, often measured by itsbandwidth in Hz or its data rate inbits per second.
Communicating data from one location to another requires some form of pathway or medium. These pathways, called communication channels, use two types of media:cable (twisted-pair wire, cable, and fiber-optic cable) and broadcast(microwave, satellite, radio, and infrared). Cable or wire line media use physical wires of cables to transmit data and information. Twisted-pair wire and coaxial cables are made of copper, and fiber-optic cable is made of glass.
In information theory, a channel refers to a theoretical channel modelwith certain error characteristics. In this more general view, a storage device is also a kind of channel, which can be sent to (written) and received from (reading ).
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