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Related to full-duplex: Half duplex


(fdx, from telegraphy) 1. A type of duplex communications channel which carries data in both directions at once.

On purely digital connections, full-duplex communication requires two pairs of wires. On analog networks or in digital networks using carriers, it is achieved by dividing the bandwidth of the line into two frequencies, one for sending, and the other for receiving.

2. An obsolete term for remote echo.

Compare simplex, half-duplex, double-duplex.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)


Transmitting and receiving simultaneously. In pure digital networks such as Ethernet, full-duplex is achieved with two pairs of wires. In cellular networks, full-duplex is achieved by using two different channel frequencies, one for sending, the other for receiving. Contrast with half-duplex.

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References in periodicals archive ?
Abdallah, Spectrum Sensing for Half and Full-Duplex Cognitive Radio.
"Experiment-Driven Characterizationof Full-Duplex Wireless Systems," Wireless Communications, IEEE Transactions on, 11(12): 4296, 4307.
In this work, in order to integrate this antenna with full-duplex modulator circuit, the on-chip antenna design is deposited on a benzocyclobutene (BCB) membrane and then an InP substrate, which is the same as [12, 13].
The authors in [12, 13] have introduced adaptive full-duplex transmit-sense (FDs) and full-duplex transmit-receive-sense (FDr) to improve the performance of the spectrum-sharing mechanism.
The proposed method selects the duplex mode between half-duplex and full-duplex according to the channel statistical conditions.
We took advantage of the multiple antennas for our full-duplex scheme, which is the main reason why all wireless carriers are very comfortable with our technology."
In tactical field telephones the sixth pin, pin F, is needed for full-duplex telephone operation.
The unit includes Power over Ethernet, eliminating the need for additional electrical wiring; provides 100Mbps full-duplex speeds; and is immune to radio frequency interference.
The module supports full-duplex communications at 1Gbps or faster, supporting various formats.
The full-duplex, point-to-point nature of SAS enables simultaneous active connections among multiple initiators and high-performance SAS targets.
It records up to 64 simultaneous video and audio streams, offers continuous or alarm-based recording, provides full-duplex operation over TCP/IP networks, and gives digital watermark certification.