WDM Interconnected Ring Networks Intro and fairness issue

WDM Ring Networks Introduction and Fairness IssueSpeaker: Date:2010/11/191Outline2IntroductionOptical NetworksWDM WDM Ring NetworkWDM Slotted Ring NetworkFairness Issue and SolutionsConclusionFuture WorksReferencesOptical Networks Intro31960s 1000 dB/km1980s 0.2 dB/kmActive optical network; AONPassive optical network; PONEPON (Ethernet PON)GPON (Gigabit PON)Optical Networks Intro (Space Division multiplexing; SDM) (Time division multiplexing; TDM) (Wavelength division multiplexing; WDM)

4WDM (Wavelength Division Multiplexing)5WDM

WDM 6WDM(1310,1550nm)160 10Gbit/s WDM1.6 Tbit/sDWDM (Dense Wavelength-Division Multiplexing)EDFA()4~8 ,160 < 0.8 nm (EDFA1550 nm )CWDM (CoarseWavelengthDivisionMultiplexing) > 20 nm (1271~1611 nm )4~8 (DWDM30%)WDMFixed Transmitter/Receiver ( FT/FR )Tunable Transmitter/Receiver ( TT/TR )TT-FR,CFT-FR,FT-TR,FT-CFRCchannel,ex: FT-4FR

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Ring Network8(Metropolitan Area Network)(Wide Area Network)Ring (Architecture) (Fault Tolerant)(Routing) (Scalable)(Spatial Reuse)MulticastBroadcastWDM Ring Network9WDM Ring NetworkSlotted Ring NetworkWDM Slotted Ring NetworkFairness issues and solutionsFFRMMRM-ATMRImproveM-FECCA

Slotted Ring Network()10()Spatial Reuse

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WDM Slotted Ring Network11FT-TRWDM ()

First Fit (FF)12()Control Slot w mini slot ()

First Fit (FF)13(TT-FR)First Fit with Rotation(FFR)14FF(Rotation)

MMR(Multi-Metaring)15FFRMMRMetaringSATSAT(Quota)MMRSATSAT

w ()w SATFFRFF16FFRFF1616500Tt = 6, Ts = T/3 = 2.0 Tc = 2/15= 0.1333 0.1333*7.5 =1M-ATMR ( Multi-Asynchronous Transfer Mode Ring)17WDMHeaderBusy AddressAddressBusy Address Busy AddressResetResetReset

M-ATMR(1)AddressBusy Address

18M-ATMR(2)19

AddressBusy Address

M-ATMR(3)20

BAM-ATMR(4)21

Busy Address

M-ATMR(5)22reset

M-FECCA (Multi Fair and Efficient Cyclic Control Algorithm)23M-ATMRM-ATMR(busy address) Ring A Ring BRing A Ring B busy header

M-FECCA 24727BA=20172

M-FECCA M-ATMR 2524Windows size (Quota)24 slots windows sizeM-FECCA M-ATMR 26 windows size M-FECCA window size M-FECCA M-ATMRwindow size M-ATMR

Conclusion27FFRMMRFFRMMRM-FECCAWDM WDM

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Future work29WDMWDMReferences30[1] C. H. Yeh, C. W. Chow, PHYSICS BIMONTHLY, The Physical Society of Republic of China (Taiwan), p.30 ,2010[2] Motorola, Inc, WDM/CWDM/DWDM: Segmentation Primer- Maximizing Capacity for Revenue, White paper, 2008[3] Photonics Industry & Technology Development Association, , Vol. 11, 1997[4] Bianco, A., Cuda, D., Finochietto, J., Neri, F., Multi-MetaRing Protocol:Fairness in Optical Packet Ring Networks,IEEE International Conference on Communications, 2007[5] , , , 1999[6] ,,, 2003[7] M. Maier Optical Switching Networks, Cambridge University Press, chapter 1, 2008[8] http://www.cs.nthu.edu.tw/~nfhuang/chap01.htm#1 , [9] http://www.csie.mcu.edu.tw/~jerry/net/ ,Chapter 8-2

Q&AThanks for your attention

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