The maximum-likelihood rule for locating a frame-synchronization pattern in a direct-detection optical communication system employing eitherQ-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:
Communications, IEEE Transactions on
(Volume:32
,
Issue:
2
)
Date of Publication:
Feb 1984
- Page(s):
-
118
-
123
- ISSN :
-
0090-6778
- Digital Object Identifier :
-
10.1109/TCOM.1984.1096035
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
06 January 2003
- Issue Date :
-
Feb 1984
- Sponsored by :
-
IEEE Communications Society