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XGM波長變換器網(wǎng)絡(luò)的路由波長分配算法研究

張雷,  李樂民

張雷, 李樂民. XGM波長變換器網(wǎng)絡(luò)的路由波長分配算法研究[J]. 電子與信息學(xué)報(bào), 2002, 24(2): 145-150.
引用本文: 張雷, 李樂民. XGM波長變換器網(wǎng)絡(luò)的路由波長分配算法研究[J]. 電子與信息學(xué)報(bào), 2002, 24(2): 145-150.
Zhang Lei, Li Lemin. Routing and wavelength assignment in all optical network with XGM wavelength converter[J]. Journal of Electronics & Information Technology, 2002, 24(2): 145-150.
Citation: Zhang Lei, Li Lemin. Routing and wavelength assignment in all optical network with XGM wavelength converter[J]. Journal of Electronics & Information Technology, 2002, 24(2): 145-150.

XGM波長變換器網(wǎng)絡(luò)的路由波長分配算法研究

Routing and wavelength assignment in all optical network with XGM wavelength converter

  • 摘要: 交叉增益調(diào)制(XGM,Cross-Gain Modulation),用于波長變換技術(shù),可較簡單地制成全光波長變換器。該文先用一個(gè)簡單的近似模型分析了XGM波長變換器對路徑阻塞率的影響,進(jìn)而根據(jù)其本身固有的特點(diǎn),設(shè)計(jì)了3種適合于XGM波長變換器網(wǎng)絡(luò)的路由波長分配算法。通過在美國科學(xué)基金會骨干網(wǎng)絡(luò)(NSFNET,National Science Foundation backbone network),和網(wǎng)孔型(Mesh-torus)網(wǎng)絡(luò)中的仿真,從網(wǎng)絡(luò)的阻塞率和公平性兩個(gè)方面研究XGM波長變換器對網(wǎng)絡(luò)性能的影響,同時(shí)比較了3種算法的性能。仿真結(jié)果表明,XGM波長變換器較無波長變換,可以在網(wǎng)絡(luò)的阻塞率和公平性兩個(gè)方面都得到較大的改善;3種算法中,FF/lowest算法在改善網(wǎng)絡(luò)的阻塞率和公平性兩個(gè)方面都是最優(yōu)的。
    Abstract: With XGM (Cross-Gain Modulation) technology, a type of all-optical wavelength converter can be simply made. In this paper, using a simple model, the influence of path blocking probability made by XGM wavelength converter is first analyzed, then considering the characteristic of XGM wavelength converter, three kinds of RWA(routing and wavelength assignment) are designed, which are suitable for the all-optical XGM wavelength converters. By simulating in NSFNET and Mesh-torus network, the performance improvement is assessed and the performance of the three kinds of RWA are compared. The simulation results show that significant improvement in blocking probability and fairness is obtained and the performance of FF/lowest algorithm is best among the three kinds of RWA.
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  • B. Ramamurthy, B. Mukherjee, Wavelength conversion in WDM networking, IEEE J. on Select.Areas Commun., 1998, 16(7), 1061-1073.[2]T. Durhuus,et al., All-optical wavelength conversion by semiconductor optical amplifier, J. on Lightwave Technol, 1996, 14 (6), 942-954.[3]J. Yates, J. Lacey, D. Everitt, M. Summerfield, Limited-range wavelength translation in all-optical networks, Proc. INFOCOM96, San Francisco, CA, U.S.A., Mar. 1996, 954-961.[4]R.A. Barry, P. A. Humblet, Models of blocking pro bability in all-optical networks with and without wavelength changers, IEEE J. on Select. Areas. Commun., 1996, 14(5), 858-867.[5]R. Ramaswami, K. N. Sivarajan, Design of logical topologies for wavelength-routed optical networks, IEEE J. on Select. Areas Commun., 1996, 14(5), 840-851.[6]V. Sharma, E. A. Varvarigos, Limited wavelength translation in all-optical WDM mesh networks,Proc. INFOCOM98, San Francisco, CA, U.S.A., Mar. 1998, 893-901.[7]M. Kovacevic, A. S. Acampora, Benefit of wavelength translation in all-optical clear-channel networks, IEEE J. on Select. Areas Commun., 1996, 14(5), 860-880.
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出版歷程
  • 收稿日期:  2000-09-01
  • 修回日期:  2001-01-20
  • 刊出日期:  2002-02-19

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