Method and system for determining receiver power for required bit error rate
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United States of America Patent
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Issued Date -
Jan 4, 2007
app pub date -
Apr 15, 2005
filing date -
Apr 15, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and system for determining a receiver power for a required bit error rate (BER) in an optical communication systems is disclosed. A signal is transmitted using an initial transmitter power and is received at a receiver. A BER contour diagram is created by measuring high BER values and approximating low BER values from the high BER values. The optimum decision threshold and/or sampling phase is determined from the contour diagram and the BER is calculated at the optimum decision threshold and/or at the optimum sampling phase. If the calculated BER is not close to or equal to the required BER, the transmitter power is adjusted until the calculated BER is close to or equal to the required BER. The receiver power is then calculated from the transmitter power or directly measured from the received signal.
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