| 基于GMPLS的动态分布式WDM网状网恢复路由选择算法研究 |
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| 引用本文： | 雷蕾,赵继军,魏建勇,纪越峰. 基于GMPLS的动态分布式WDM网状网恢复路由选择算法研究[J]. 通信学报, 2003, 24(8): 128-134 |
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| 作者姓名： | 雷蕾 赵继军 魏建勇 纪越峰 |
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| 作者单位： | 北京邮电大学,光通信中心,北京,100876 |
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| 基金项目： | 国家自然科学基金资助项目(90104017)，国家“863”计划项目(2001AA122051,2001AA122062)，教育部重大基金资助项目(0215)，跨世纪优秀人才培养计划基金资助项目 |
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| 摘 要： | 提出了一种在GMPLS体系下的分布式业务路径和恢复路径在线选路算法，以使光网络在动态业务请求下能有效的利用波长资源。由于该算法对业务路径和恢复路径的选择进行了联合优化，其性能更优于独立业务路径恢复算法(SSPR)。仿真结果表明，利用该算法时业务路径和恢复路径占用的网络总资源明显小于SSPR算法，而恢复时间只比SSPR算法略有增加。
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| 关 键 词： | WDM网状网 恢复路由选择算法 GMPLS |
| 文章编号： | 1000-436X(2003)08-0128-07 |
| 修稿时间： | 2002-05-27 |
GMPLS-based distributed routing of shared restoration connections in WDM mesh networks for dynamic traffic demand |
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| LEI Lei,ZHAO Ji-jun,WEI Jian-yong,JI Yue-feng. GMPLS-based distributed routing of shared restoration connections in WDM mesh networks for dynamic traffic demand[J]. Journal on Communications, 2003, 24(8): 128-134 |
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| Authors: | LEI Lei ZHAO Ji-jun WEI Jian-yong JI Yue-feng |
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| Abstract: | An online algorithm for distributed routing of service and restoration lightpaths under GMPLS framework is proposed in order to efficiently utilize the resources in optical networks under dynamic traffic demand. Since joint optimization of service path and restoration path is adopted in this algorithm,it has a better performance than the single service path restoration (SSPR) algorithm. The simulation results show that in this algorithm,the service and restoration paths consume much less bandwidth,with the restoration time only increases a little than in SSPR. |
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| Keywords: | WDM mesh network restoration path selection algorithm generalized multi-protocol label switching |
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