DocumentCode :
1538094
Title :
Carrier sense using subcarrier-multiplexed signaling for optical frequency division multiple access
Author :
Kitayama, Ken-ichi
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Tokyo, Japan
Volume :
15
Issue :
5
fYear :
1997
fDate :
5/1/1997 12:00:00 AM
Firstpage :
758
Lastpage :
765
Abstract :
A novel subcarrier multiplexing based carrier sense technique called SCM-CS is proposed and is experimentally demonstrated. It can prevent the contention in optical frequency division multiple access networks that use an access protocol based on a fixed-wavelength transmitter and wavelength-tunable receiver. When two or more SCM signals on the same subcarrier frequency at different wavelengths simultaneously address the same destination node, SCM-CS detects the sum of the subcarrier frequencies by using RF heterodyne detection and denies the access. SCM-CS permits node access only if the carrier sense is negative which means that the destination node is idle. In the experiment, SCM-CS is successfully performed for 6.2 Mb/s SCM signals of the subcarrier frequency of 164 MHz with the frequency difference of the optical carriers up to 40 GHz
Keywords :
carrier sense multiple access; demodulation; frequency division multiple access; optical fibre networks; optical receivers; optical transmitters; subcarrier multiplexing; 164 MHz; 6.2 Mbit/s; RF heterodyne detection; SCM-CS; access protocol; destination node; fixed-wavelength transmitter; frequency difference; optical frequency division multiple access; subcarrier frequencies; subcarrier multiplexing based carrier sense technique; subcarrier-multiplexed signaling; wavelength-tunable receiver; Access protocols; Frequency conversion; Optical fiber networks; Optical mixing; Optical receivers; Optical sensors; Optical transmitters; RF signals; Radio frequency; Switches;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/50.580809
Filename :
580809
Link To Document :
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