Overhead bit
Encyclopedia
In data transmission
and telecommunication
, overhead bits are nondata bits necessary for transmission (usually as part of headers, checksums, and such).
Such bits are not counted as part of the goodput
.
Data transmission
Data transmission, digital transmission, or digital communications is the physical transfer of data over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires, optical fibres, wireless communication channels, and storage media...
and telecommunication
Telecommunication
Telecommunication is the transmission of information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded...
, overhead bits are nondata bits necessary for transmission (usually as part of headers, checksums, and such).
Such bits are not counted as part of the goodput
Goodput
In computer networks, goodput is the application level throughput, i.e. the number of useful information bits, delivered by the network to a certain destination, per unit of time. The amount of data considered excludes protocol overhead bits as well as retransmitted data packets...
.