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Recursive retransmission control for a two-station slotted-ALOHA network

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2 Author(s)
A. S. Galanopoulos ; Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA ; R. L. Hamilton

Develops a first-order recursive retransmission control policy for a two-station slotted-ALOHA network. Under this policy, terminals adjust their retransmission probability at the end of each slot based on feedback from the current slot. The fundamental difference between a single-station and a two-station network is the interaction between the terminal groups. This interaction occurs because some terminals are in transmission range of both stations; when these terminals transmit to their station they also interfere with the other station. The retransmission control keeps the offered traffic levels near the maximum throughput point and divides the channel capacity fairly between the two terminal groups. The control is intuitively appealing: to acquire channel capacity in proportion to its arrival rate, each group balances efforts to increase its throughput with a certain backoff that permits channel use by the other group

Published in:

IEEE Transactions on Communications  (Volume:42 ,  Issue: 234 )