2001, Volume 3, Issue 12
Strategic Study of CAE >> 2001, Volume 3, Issue 12
On-Line Supervisory Technology for Q-Factor in the Optical Supervisory Channel of Optical Transport Network
Department E.E., Southeast University, Nanjing 210096, China
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Abstract
In this paper, a hierarchical model of the optical transport network (OTN) with an optical supervisory channel (OSC) subsystem is discussed, and that the reliability of operation, administration and management (OAM) signals is rested with the quality of signals transported in OSC is indicated by analyzing the charac-teristics of signals in OSC. Basing on the one-to-one correspondence of Q-factor with bit-error-ratio (BER) in data communication systems, an on-line supervisory scheme for Q-factor of signals in OSC is presented, and the supervisory module by a digital signal processor (DSP) approach is designed to implement on-line supervision for Q-factor.
Keywords
optical transport network (OTN) ; optical supervisory channel (OSC) ; OAM ; Q-factor supervision
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References
[ 1 ] ITU T .Architectureofopticaltransportnetworks[S].ITU TRecommendationG .872, Feb1999
[ 2 ] ITU T .Networknodeinterfacefortheopticaltransportnetwork[S].ITU TRecommendationG .709 (DraftIssue0.8.3) , Oct2000
[ 3 ] ITU T .Managementaspectsoftheopticaltransportnetworkelement[S].ITU TRecommendationG .874 (Draft1.4) , Apr2000
[ 4 ] ITU T .Genericfunctionalarchitectureoftransportnet works[S].ITU TRecommendationG .805, Nov1995
[ 5 ] LoweryA , LenzmannO , KoltchanovI , etal.Multiplesignalrepresentationsimulationofphotonicdevices, sys tems, andnetworks[J].IEEEJournalofSelectedTop icsinQuantumElectronics, 2000, 6 (2) :282～296
[ 6 ] GiehmannL , GladischA , RudolphJ.FieldtrialofOAM signaltransportcapabilitieswitha10Mchip/sLED directsequencespreadspectrumsystemsuitedforOAM signal transportintransparentopticalWDM net works[A].OFC /IOOC′99TechnicalDigest[C], Jan1999.252～254
[ 7 ] TektronixInc.Physicallayertestingofdatacommuni cationssignals[M ].TektronixIncApplicationNote, 2000
[ 8 ] OhteruS , TakachioN .OpticalsignalqualitymonitorusingdirectQ factormeasurement[J].IEEEPhotonicsTechnologyLetters, 1999, 11 (10) :1307～1309
[ 9 ] ITU T .Synchronousframestructuresusedat1544, 6312, 2048, 8488and44736kb/shierarchicallevels[S].ITU TRecommendationG .704, Jul1995
[10] BucciG , LandiC .AmultiDSPbasedinstrumentonaVXIC sizemoduleforreal timemeasurements[J].IEEETransactionsonInstrumentationandMeasure ment, 2000, 49 (4) :884～889
[11] BertoccoM , FlamminiA , MarioliD , etal.Robustandaccuratereal timeestimationofsensorssignalparametersbyaDSPapproach[J].IEEETransactionsonInstru mentationandMeasurement, 2000, 49 (3) :685～689
[12] TexasInstrumentsInc.TMS320C6201fixeddigitalsignalprocessordatamanual[M ].TexasInstrumentsInc, 2000
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