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Compare Pre assigned FDMA and Demand assigned FDMA

written 7.0 years ago by teamques10 ★ 70k

•   modified 6.9 years ago

Mumbai University > Satellite Communication and Networks

Topic : Space Segment Access and Utilization

Marks: 5M

satellite communication and network

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written 6.9 years ago by teamques10 ★ 70k

Pre assigned FDMA	Demand assigned FDMA
A station has periodic access to the channel independent of its actual need	It gives the station access to the channel only when it requests access
Best applied to high capacity commercial system	For intermittent traffic the demand assignment is more efficient.
Less efficient	More efficient than the preassigned ones
No control mechanism required	Increases the cost of the system because it requires control mechanism

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