Adaptive packet detection for detecting packets in a wireless medium
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United States of America Patent
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Dec 16, 2008
Grant Date -
Sep 1, 2005
app pub date -
Feb 22, 2005
filing date -
Feb 20, 2004
priority date (Note) -
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Abstract
In a packet detector, one or more tests are performed for packet detection according to packet detection parameters associated with the one or more tests, a rate of false detection is measured, and the packet detection parameters are adjusted accordingly to reduce the rate of false detection. The rate of false detection might be determined by analyzing post-detection and processing of a signal deemed to be a signal representing a packet for a failure of decoding indicative of a false detection. Such analysis might include testing for a failed SFD search, training symbol anomalies, poor conditioning of metrics used to determine frequency offset and OFDM timing, incorrect data fields, or the like.
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