Aloha
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aloha
[ə′lō·ə] (communications)
A radio-channel random-access technique that depends on positive acknowledgement of correct receipt for error control.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Aloha
(networking)(From the Hawaiian greeting) A system of
contention resolution devised at The University of Hawaii.
Packets are broadcast when ready, the sender listens to
see if they collide and if so re-transmits after a random
time. Slotted Aloha constrains packets to start at the
beginning of a time slot. Basic Aloha is appropriate to long
propagation time nets (e.g. satellite). For shorter
propagation times, carrier sense protocols are possible.
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ALOHA
A type of TDMA transmission system developed by the University of Hawaii used for satellite and terrestrial radio links. In the traditional ALOHA system, packets are transmitted as required, and, like Ethernet's CSMA/CD method, collisions can occur. A "Slotted ALOHA" system triggers transmission starts by a clock and reduces the number of collisions.Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.