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demand assigned multiple access (satellite comm.) (DAMA)

Demand Assigned Multiple Access (DAMA) is a competitive procedure for multiple access to frequency channels, especially used in satellite communications. In this procedure, which is a special type of Time Division Multiple Access ( TDMA), idle channels are combined in a pool. When a channel request is received, a quiet channel with the corresponding bandwidth is selected and allocated to the requesting party. In satellite radio, several earth stations compete for a radio frequency.

Another multiple access method used in satellite transmission, Preassigned Multiple Access( PAMA), on the other hand, works with reservation techniques.

Informations:
Englisch: demand assigned multiple access (satellite comm.) - DAMA
Updated at: 06.01.2011
#Words: 93
Links: procedure, frequency (f), satellite communications (Satcom), indium (In), time division multiple access (access method) (TDMA)
Translations: DE
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