ARQ MAC for ad-hoc communication networks and a method for using the same
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United States of America Patent
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Feb 3, 2004
Grant Date -
Dec 11, 2003
app pub date -
Feb 28, 2003
filing date -
Jun 5, 2002
priority date (Note) -
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Abstract
A system and method for a media access control (MAC) algorithm with separate operation modes for good channel and bad channel communication. Variables, including channel vector values transmitted in request-to-send/clear-to-send (RTS/CTS) messages, are varied depending on channel mode, resulting in optimized system throughput. In a first mode, the present invention provides a system and method to estimate a channel vector length, and communicate the length to a first node and any associated groups of nodes receiving the RTS/CTS sequence. In a second mode, a maximum channel vector length is used, as retransmissions are less probable in good channels.
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