Definitions for "Multiple Access"
Keywords:  fdma, tdma, transponder, cdma, csma
A methodology (FDMA, TDMA, CDMA) by which multiple users share access to a transmission channel. Most modern systems accomplish this through "demand assignment" where the specific parameter (frequency, time slot, or code) is automatically assigned when a subscriber requires it.
The simultaneous sharing of a common transmission bandwidth by multiple users. In satellite communications, it usually refers to the shared use of one or more transponders by multiple earth stations.
Multiple-access techniques aim to share a channel between two or more signals in such a way that each signal can be received without interference from another.
A method for accomodating more users in the same frequency band.