Shared sub-path protection algorithm for WDM mesh networks with traffic grooming capabilities

被引：0
|
作者：
He, RX [1 ]
Wen, HB [1 ]
Wang, GX [1 ]
Li, LM [1 ]
机构：
[1] Northeastern Univ, Shenyang 110004, Peoples R China
来源：
APOC 2003: ASIA-PACIFIC OPTICAL AND WIRELESS COMMUNICATIONS; NETWORK ARCHITECTURES, MANAGEMENT, AND APPLICATIONS, PTS 1 AND 2 | 2003年 / 5282卷
关键词：
mesh networks; traffic grooming; shared protection; wavelength-plane graph; sub-path protection;
D O I：
10.1117/12.517375
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper investigates the problem of dynamically establishing dependable connections in traffic-grooming wavelength division multiplexing (WDM) mesh networks, and proposes a dynamic shared sub-path protection (SSPP) scheme for multi-granularity traffic. To establish a dependable connection, SSPP first searches a primary path for each connection request, and then it segments the found path into several equal-length sub-paths, and computes their corresponding backup paths, respectively. In SSPP, if two sub-paths are fiber-disjoint then their backup paths can share backup resources to obtain the optimal spare capacity. Based on dynamic traffic with different load, the performance of SSPP has been investigated via simulations. The results show that SSPP can make the tradeoffs between the resource utilization and the restoration time.
引用
收藏
页码：663 / 673
页数：11
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