asymmetrical modulation

<communications> A scheme to maximise use of a communications line by giving a larger share of the bandwidth to the modem at the end which is transmitting the most information.

Only one end of the connection has full bandwidth, the other has only a fraction of the bandwidth. Normally, which end gets the full bandwidth is chosen dynamically.

Asymmetrical modulation was made famous by the HST mode of the early high-speed modems from US Robotics.

Nearby terms:
Astra Digital Radio « Astral « AST Research, Inc. « asymmetrical modulation » Asymmetric Digital Subscriber Line » Asymmetric Digital Subscriber Loop » asynchronous