Overhead information is
digital
Digital usually refers to something using discrete digits, often binary digits.
Technology and computing Hardware
*Digital electronics, electronic circuits which operate using digital signals
** Digital camera, which captures and stores digital ...
information
Information is an abstract concept that refers to that which has the power to inform. At the most fundamental level information pertains to the interpretation of that which may be sensed. Any natural process that is not completely random, ...
transferred across the functional
interface
Interface or interfacing may refer to:
Academic journals
* ''Interface'' (journal), by the Electrochemical Society
* '' Interface, Journal of Applied Linguistics'', now merged with ''ITL International Journal of Applied Linguistics''
* '' Int ...
between a
user and a telecommunications
system, or between functional units within a telecommunications system, for the purpose of directing or controlling the transfer of
user information
User information is information transferred across the functional interface between a source user and a telecommunications system for delivery to a destination user.
In telecommunications systems, user information includes user overhead informat ...
or the detection and correction of errors.
Overhead information originated by the user is not considered to be system overhead information. Overhead information generated within the
communications system
A communications system or communication system is a collection of individual telecommunications networks, transmission systems, relay stations, tributary stations, and terminal equipment usually capable of interconnection and interoperat ...
and not delivered to the user is system overhead information. Thus, the user
throughput
Network throughput (or just throughput, when in context) refers to the rate of message delivery over a communication channel, such as Ethernet or packet radio, in a communication network. The data that these messages contain may be delivered ove ...
is reduced by both overheads while system throughput is reduced only by system overhead.
References
*
Data transmission
{{telecommunications-stub