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Locating Data Frames in Direct-Detection Optical Communication Systems

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2 Author(s)
C. Georghiades ; Washington University, St. Louis, MO ; D. Snyder

The maximum-likelihood rule for locating a frame-synchronization pattern in a direct-detection optical communication system employing either Q -ary pulse-position modulation or on-off keying is identified. We show that equivalent performance for the simple correlation and postdctection-correlation rules used in practice can require substantially more than a 3 dB increase in signal power over that required using the maximum-likelihood rule.

Published in:

IEEE Transactions on Communications  (Volume:32 ,  Issue: 2 )