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TANCET 2011 SLOTTED ALOHA

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In the text it was stated that a satellite with two uplink and one downlink slotted ALOHA channels can achieve a Downlink utilisation of 0.736, given an infinite amount of buffer space.Expected number of success per slot will be

1) 0.536

2) 0.636

3) 0.736

4) 0.836
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