Title :
Design of a special family of optical CDMA address codes for fully asynchronous data communications
Author_Institution :
Telecommun. Lab., Parma Univ., Italy
fDate :
7/1/1999 12:00:00 AM
Abstract :
A special family of optical address codes, called strict optical orthogonal codes (OOCs), is proposed for fiber-optic code-division multiple access (FO-CDMA) networks. Such codes can strictly guarantee both crosscorrelation and autocorrelation constraints (i.e., λ c and λa) to be one in fully asynchronous data communications and ultrafast switching. Theory of strict OOCs is presented and the code design is described by using the concepts of slot distances. Moreover, the use of strict OOCs can support variable-rate and multirate data communications in an FO-CDMA network with no violation of λc=λa=1 and no increase of system complexity compared to using conventional OOCs
Keywords :
code division multiple access; codes; data communication; optical correlation; optical fibre networks; telecommunication switching; FO-CDM networks; asynchronous data communications; autocorrelation constraint; code design; crosscorrelation constraint; fiber-optic code-division multiple access; multirate data communications; optical CDMA address codes; slot distances; strict optical orthogonal codes; ultrafast switching; variable-rate data communications; Autocorrelation; Data communication; Decoding; Multiaccess communication; Optical design; Optical fiber communication; Optical fiber networks; Optical receivers; Optical transmitters; Ultrafast optics;
Journal_Title :
Communications, IEEE Transactions on
