contention

In telecommunication, the term contention has the following meanings: 1. A condition that arises when two or more data stations attempt to transmit at the same time over a shared channel, or when two data stations attempt to transmit at the same time in two-way alternate communication. A contention can occur in data communications when no station is designated a master station. In contention, each station must monitor the signals and wait for a quiescent condition before initiating a bid for master status. 2. Competition by users of a system for use of the same facility at the same time.

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companding
comparably efficient interconnection
comparator
compatibility
compatible sideband transmission
complementary network service
component
composite cable
compromise
computer conferencing
computer network operating system

comsec equipment
concentrator
concentricity error
conditioning equipment
conducted interference
conduction band
conductive coupling
conference operation
configuration control
configuration management
congestion

connectionless mode transmission
connections per circuit hour
connectivity exchange
conservation of radiance
continuous operation
contrast
control communications
controlled area
controlled security operation
control of electromagnetic radiation
control operation

convolutional code
convoy internal communications
cooperation factor
copy
cord circuit
core
corner reflector
cosmic noise
costas loop
coupling
cover