Scalable delay-power control algorithm for bandwidth sharing in wireless networks
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United States of America Patent
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Nov 27, 2012
Grant Date -
May 20, 2010
app pub date -
Nov 18, 2009
filing date -
Nov 18, 2008
priority date (Note) -
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Abstract
A distributed power control technique for wireless networking efficiently balances communication delay against transmitter power on each wireless link. Packets are transmitted over a wireless link from a transmitter to a receiver using a dynamically controlled transmit power level that is periodically updated at the transmitter. The transmit power is computed from i) an observed noise plus interference value of the wireless link and ii) a parameter that determines a balance between per-packet average delay and per-packet average power. In a preferred implementation, the dynamically controlled transmit power level is computed by minimizing the sum of an average delay cost and an average power cost, weighted by the parameter.
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