Network2/Concept/Capacity: Difference between revisions
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Suppose that Alice is trying to send messages to Bob over a noisy channel like a radio link. |
Suppose that Alice is trying to send [[Network2/Concept/Protocol|messages]] to Bob over a noisy channel like a radio [[Network2/Concept/Link|link]]. |
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No matter what sort of link they possess, there are only finitely many different messages that Bob might reliably receive from Alice |
No matter what sort of link they possess, there are only finitely many different messages that Bob might reliably receive from Alice within a single unit of time. This quantity is the capacity of their link. |
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Link capacity is typically expressed in bits per second or some unit derived therefrom like Mbps (mega-bits per second). |
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Latest revision as of 21:46, 3 December 2009
Suppose that Alice is trying to send messages to Bob over a noisy channel like a radio link.
No matter what sort of link they possess, there are only finitely many different messages that Bob might reliably receive from Alice within a single unit of time. This quantity is the capacity of their link.
Link capacity is typically expressed in bits per second or some unit derived therefrom like Mbps (mega-bits per second).