A method of segment protection based on p-cycle for dynamic multicast with limited-range wavelength converter in WDM network

被引：1
|
作者：
Liu, Huan-lin [1 ]
Deng, Lang [1 ]
Chen, Yong [1 ]
Dai, Hong-yue [1 ]
Wang, Yang-yang [1 ]
机构：
[1] Chongqing Univ Posts & Telecommun CQUPT, Chongqing Key Lab Signal & Informat Proc, Key Lab Opt Fiber Commun Technol, Chongqing 400065, Peoples R China
来源：
OPTIK | 2014年 / 125卷 / 16期
基金：
中国国家自然科学基金;
关键词：
WDM network; p-Cycle protection; Dynamic multicast; ESHS algorithm; Blocking probability; FAILURE RECOVERY; NODE;
D O I：
10.1016/j.ijleo.2014.02.016
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In the optical multicast network, node and link failures have very important influence on the network survivability which may lead to multiple destinations cannot receive data. Based on the wavelength layered-graph method, a method of efficiency-score based on heuristic algorithm of pre-configured cycle (p-Cycle) based-segment protection (ESHS) for dynamic multicast with limited-range wavelength conversion was presented in this paper. By finding the multicast tree segment protection, the total available p-Cycles are constructed for the multicast. Then we calculate each p-Cycle efficiency-score, the highest efficient-score p-Cycle is selected as the multicast route protection p-Cycle. The simulation results show that the ESHS can get higher performance than the existing ESHT algorithm, in terms of multicast request blocking probability and wavelength utilization. (C) 2014 Elsevier GmbH. All rights reserved.
引用
收藏
页码：4517 / 4521
页数：5
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