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5 . Consider the following multiple access protocols that we've studied: ( 1 ) TDMA, and FDMA ( 2 ) CSMA ( 3 ) Aloha,

5 .

Consider the following multiple access protocols that we've studied:

(1)

TDMA, and FDMA

(2)

CSMA

(3)

Aloha, and

(4)

polling. Which of these protocols requires some form of centralized control to mediate channel access?

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Databases In Networked Information Systems Second International Workshop Dnis 2002 Aizu Japan December 18 2002 Proceeding Lncs 2544

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