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WDM網(wǎng)絡(luò)動(dòng)態(tài)組播業(yè)務(wù)管道失效保護(hù)

程曉軍,  葛寧,  馮重熙

程曉軍, 葛寧, 馮重熙. WDM網(wǎng)絡(luò)動(dòng)態(tài)組播業(yè)務(wù)管道失效保護(hù)[J]. 電子與信息學(xué)報(bào), 2006, 28(3): 451-454.
引用本文: 程曉軍, 葛寧, 馮重熙. WDM網(wǎng)絡(luò)動(dòng)態(tài)組播業(yè)務(wù)管道失效保護(hù)[J]. 電子與信息學(xué)報(bào), 2006, 28(3): 451-454.
Cheng Xiao-jun, Ge Ning, Feng Chong-xi. Provisioning of Protection for Dynamic Multicast Traffic Against Single Duct Failures in WDM Networks[J]. Journal of Electronics & Information Technology, 2006, 28(3): 451-454.
Citation: Cheng Xiao-jun, Ge Ning, Feng Chong-xi. Provisioning of Protection for Dynamic Multicast Traffic Against Single Duct Failures in WDM Networks[J]. Journal of Electronics & Information Technology, 2006, 28(3): 451-454.

WDM網(wǎng)絡(luò)動(dòng)態(tài)組播業(yè)務(wù)管道失效保護(hù)

Provisioning of Protection for Dynamic Multicast Traffic Against Single Duct Failures in WDM Networks

  • 摘要: 在光網(wǎng)絡(luò)的建設(shè)中，為降低建設(shè)成本，多條鏈路往往經(jīng)過(guò)同一條管道。在很多情況下，光纖鏈路的失效是由管道故障引起的，需要為網(wǎng)絡(luò)的管道故障提供保護(hù)。該文研究了動(dòng)態(tài)組播業(yè)務(wù)的單管道故障保護(hù)，給出了兩種專(zhuān)有保護(hù)算法(SDP-DP和SDS-DP)和一種保護(hù)波長(zhǎng)共享保護(hù)算法(SDS-SDP)，并對(duì)各算法的連接阻塞率進(jìn)行了仿真分析。仿真表明，在大部分情況下，由于SDS-SDP共享了連接請(qǐng)求之間的保護(hù)波長(zhǎng)，SDS-SDP算法的連接阻塞率最低；而在低網(wǎng)絡(luò)負(fù)載的情況下，SDP-DP算法有最低的連接阻塞率。
    Abstract: Under the construction of optical networks, in order to reduce construction cost, several links may pass through a duct. In many cases, fibers fail due to duct failures. It is required to provide protection against duct failures. The paper investigates protection for dynamic multicast traffic against single duct failures. The paper explores two dedicated protection algorithms (SDP-DP, SDS-DP) and a shared protection algorithm(SDS-SDP). Block probabilities of the algorithms are assessed through simulation. Simulation results show that, in most cases, block probability of SDS-SDP is lowest since SDS-SDP shares protecting wavelengths among connection requests. When the network load is light, SDP-DP has lowest block probability.
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  • Doshi B T, Dravida S, Harshavardhana P, Hauser O, Wang Y. Optical network design and restoration[J].Bell Labs Technical Journal.1999, 4(1):58-[2]Liu Y. Spare capacity location: model, analysis and algorithm. [Ph.D. Dissertation], Pittsburgh: University of Pittsburgh, 2001.[3]Zang H, Ou C, Mukherjee B. Path-protection routing and wavelength assignment in WDM mesh networks under duct-layer constraints. IEEE J on SAC, 2003, 11(2): 248.258.[4]Sahasrabuddhe L H, Mukherjee B. Light trees: optical multicasting for improved performance in wavelength routed networks[J]..IEEE Communications Magazine.1999, 37(2):67-[5]Singhal N K, Sahasrabuddhe L H, Mukherjee B. Provisioning of survivable multicast sessions against single link failures in optical WDM mesh networks[J].Journal of Lightwave Technology.2003, 21(11):2587-[6]Ou C, Zhang J, Sahasrabuddhe L H, Mukherjee B. Near-optimal approaches for shared-path protection in WDM mesh network. IEEE ICC2003, Anchroage, Alaska, USA, 2003: 1320.1324.[7]Takahashi H, Matsuyama A. An approximate solution for the Steiner problem in graphs. Math. Japonica, 1980, 24(6): 573. 577.
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出版歷程
  • 收稿日期:  2004-09-07
  • 修回日期:  2005-01-18
  • 刊出日期:  2006-03-19

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