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Lecture #14: Local Area Networks ALOHA Ethernet Token Ring ...

Lecture #14: Local Area Networks ALOHA Ethernet Token Ring ...

Lecture #14: Local Area Networks ALOHA Ethernet Token Ring ...

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Slotted <strong>ALOHA</strong><br />

�� The method: Divide time into discrete<br />

intervals, intervals,<br />

each interval corresponding to one<br />

frame.<br />

�� A special station emits a pip at the start of<br />

each interval, like a clock. clock<br />

�� A user is not permitted to send whenever a<br />

special chcaracter (for example: CR) is typed.<br />

Instead, it is required to wait for the beginning<br />

of the next slot.<br />

slot<br />

11

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