Title :
Compact optical CDMA passive optical network with differentiated services
Author_Institution :
Dept. of Electron. Eng., Kun Shan Univ., Tainan Hsien, Taiwan
Abstract :
In this paper the improved versions of quadratic congruence (QC) codes for cardinality enlargement are proposed for spectral-amplitude coding (SAC) optical code-division multiple-access (OCDMA) network. These codes can adopt two-code keying for performance enhancement and the interference can be eliminated in the decoder by our interference elimination scheme proposed previously. In addition, to mitigate the cardinality reduction in the two-code keying scheme, hybrid schemes using QC and/or stuffed QC (SQC) codes for differentiated service provision are proposed. These two code families are capable of using compact encoders and decoders for the application of passive optical networks.
Keywords :
code division multiple access; decoding; interference suppression; light interference; optical fibre networks; decoder; differentiated services; interference; interference elimination scheme; optical CDMA passive optical network; optical code-division multiple-access network; quadratic congruence code; spectral-amplitude coding; two-code keying scheme; Arrayed waveguide gratings; Chaos; Decoding; Interference elimination; Multiaccess communication; Multiple access interference; Optical arrays; Optical fiber networks; Optical waveguides; Passive optical networks; Optical code-division multiple-access (OCDMA), passive optical network (PON), arrayed waveguide grating (AWG), quadratic congruence codes;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2009.08.070519
