Write three modifications on CSMA/CD make it produce better throughput than ALOHA. In brief explain each...
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Write three modifications on CSMA/CD make it produce better throughput than ALOHA. In brief explain each point. Refer to Figure 12.14 Procedure for CSMA/CD and Figure 12.4 Procedure for pure ALOHA protocol . Figure 12.4 Procedure for pure ALOHA protocol Station has Start K: Number of attempts Tp: Maximum propagation time Tfr: Average transmission time for a frame Tg: Back-off time a frame to send K=0 Wait Tg time (Tg = Rx Tpor R x Tr) Send the frame Choose a random Wait time-out time number R between O and 2K -1 (2 x Tp) No Kmax is normally 15 No received? АСK K> Kmax K = K+1 Yes Yes Abort Success Write three modifications on CSMA/CD make it produce better throughput than ALOHA. In brief explain each point. Refer to Figure 12.14 Procedure for CSMA/CD and Figure 12.4 Procedure for pure ALOHA protocol . Figure 12.4 Procedure for pure ALOHA protocol Station has Start K: Number of attempts Tp: Maximum propagation time Tfr: Average transmission time for a frame Tg: Back-off time a frame to send K=0 Wait Tg time (Tg = Rx Tpor R x Tr) Send the frame Choose a random Wait time-out time number R between O and 2K -1 (2 x Tp) No Kmax is normally 15 No received? АСK K> Kmax K = K+1 Yes Yes Abort Success
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The MAC protocols are categorized into different categories depending on their basic mechanism used i Randomaccess protocols iALOHA iiCSMA iiiCSMACD ivCSMACA ii Controlledaccess protocols iReservation ... View the full answer
Related Book For
College Mathematics for Business Economics Life Sciences and Social Sciences
ISBN: 978-0321614001
12th edition
Authors: Raymond A. Barnett, Michael R. Ziegler, Karl E. Byleen
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