Adaptive methods for packet transmission over wireless networks
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United States of America Patent
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-
Dec 5, 2000
Grant Date -
N/A
app pub date -
May 31, 1996
filing date -
May 31, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A method for transmission of digital information packets over a transmission channel. A transmitter computes a current value of a carrier-sense defer threshold and a transmit power level, based an observed ratios between recent packet transmission successes, recent packet collisions, recent packet deferrals, and an estimate of a path-loss characteristic of the transmission channel. The computed power level and carrier-sense defer threshold are selected to obtain a desired ratio of at least two of future packet success, future packet collisions, or future packet deferrals. The current carrier-sense defer threshold value is used to determine when a carrier signal for another transmitter's digital information packet is present on the transmission channel; transmission is deferred until the channel is determined to be clear of other packets. The packet is then transmitted at the computed power level.
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