Misplaced Pages

Backchannel (disambiguation): Difference between revisions

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Browse history interactivelyNext edit →Content deleted Content addedVisualWikitext
Revision as of 05:33, 14 November 2003 editRichardpitt (talk | contribs)45 editsNo edit summary  Revision as of 05:37, 14 November 2003 edit undoDysprosia (talk | contribs)28,388 editsm tidy a bitNext edit →
Line 1: Line 1:
'''Back Channel''' in a ] system typically is a low-speed or less-than-optimal transmission channel opposite to the main channel's direction. The system is ] in that the communication is not the same speed or capacity in both directions - the back-channel being the subservient or lower speed/capacity direction. A '''back-channel''' in a ] system typically is a low-speed or less-than-optimal transmission channel opposite to the main channel's direction. The system is ] in that the communication is not the same speed or capacity in both directions - the back-channel being the subservient or lower speed/capacity direction.


In many cases the back-channel is used mostly for ]s of the validity of the forward-channel's data (i.e. that the forward-channel's data passes validity tests of some sort.) In many cases the back-channel is used mostly for ]s of the validity of the forward-channel's data (i.e. that the forward-channel's data passes validity tests of some sort.)


=== Examples === === Examples ===
] where the "A" stands for "asymmetric" and the channel from the subsciber to the supplier is slower/less capacity than the channel from the supplier (]) to the subscriber - the channel from the subscriber to the supplier is the '''back-channel'''. ] where "A" stands for "asymmetric", and the channel from the subsciber to the supplier, is slower and may be of less capacity than the channel from the supplier (]) to the subscriber - the channel from the subscriber to the supplier is the '''back-channel'''.

Revision as of 05:37, 14 November 2003

A back-channel in a telecommunications system typically is a low-speed or less-than-optimal transmission channel opposite to the main channel's direction. The system is asymmetric in that the communication is not the same speed or capacity in both directions - the back-channel being the subservient or lower speed/capacity direction.

In many cases the back-channel is used mostly for acknowlegements of the validity of the forward-channel's data (i.e. that the forward-channel's data passes validity tests of some sort.)

Examples

ADSL where "A" stands for "asymmetric", and the channel from the subsciber to the supplier, is slower and may be of less capacity than the channel from the supplier (ISP) to the subscriber - the channel from the subscriber to the supplier is the back-channel.