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Unformatted text preview: transmission diameter and assuming a packet of 10 slot times on nodes A and D we see that the data gets transmitted successfully by A and D. A and D transmit an RTS packet to B and C respectively. These RTS packets are received by B and C. B and C reply by sending out CTS back to A and D. These two CTS packets collide in the region where B and C intersect. However this collision is not felt in the region of A intersection B. Similarly the collisions between the CTS packets are not felt in the region of C intersection D. Thus, A and D receive the CTS packets and transmit the data. The data goes through successfully the B and C without interference since A is hidden from C and D and vice versa for D. An ACK is sent out which collides between B and C however this ACK too like the CTS reaches A and D ending transmission. RTS A B C D CTS DATA Time DIFS SIFS SIFS SIFS 74 34 94 110 200 58 216 236 CTS DATA RTS ACK ACK ACK DIFS...
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- Fall '08