Rate-Adaptive Digital Subscriber Line: Difference between revisions

Revision as of 17:03, 28 August 2012

Revision as of 10:12, 20 December 2012

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{{for|RE-ADSL2|ITU G.992.3 Annex L}}

'''{{DSL technologies}}'''

'''Rate-Adaptiveadaptive Digitaldigital Subscribersubscriber Lineline''' ('''RADSL''') is a variation of [[Asymmetricasymmetric Digitaldigital Subscribersubscriber Lineline]] (ADSL) technology. In RADSL the [[DSL modem]] adjusts the [[upstream_(networking)|upstream]] [[Bandwidth (signal processing)|bandwidth]] to create a wider frequency band for the downstream traffic. Using this technique the line is more tolerant of errors caused by [[Noise (physics)|noise]] and signal loss.

As the frequency is adjusted, the upstream bandwidth may be markedly decreased if there is a large amount of line noise or signal degradation - this may reduce the upstream [[bit rate]] to as little as 64 kbit/s - the same speed as a single [[ISDN]] [[B channel]].