Load-Balanced Fixed Routing for Wavelength Routed Optical Networks
Load-Balanced Fixed Routing for Wavelength Routed Optical Networks
复制标题
波长路由光网络的负载平衡固定路由
DOI:
10.1109/lcomm.2013.043013.122411
复制
发表时间:
2013-05
期刊:
影响因子:
--
通讯作者:
Shen, Gangxiang
中科院分区:
文献类型:
--
作者:
Li, Yongcheng;Peng, Limei;Shen, Gangxiang
Due to simplicity in lightpath service provisioning, fixed shortest path routing is considered as one of major provisioning strategies in the wavelength routed optical networks. Nonetheless, the employment of fixed shortest routes can cause unbalanced network traffic load distribution and consequentially lead to network congestion. In this paper, we propose a novel Load-Balanced Fixed Routing (LBFR) scheme that can avoid network congestion and retain the operational simplicity of fixed routing. A pre-training process based on a forecasted traffic load matrix is employed to find a (or few) fixed route(s) between each pair of nodes for lightpath service provisioning. For a wavelength path (WP) network subject to the constraint of wavelength continuity, we also develop an analytical model that can effectively estimate lightpath blocking performance under multiple fixed routes between each pair of nodes. Results show that the proposed LBFR can perform much better than traditional fixed shortest path routing in lightpath blocking, and performance improvement becomes more significant with an increasing network nodal degree.
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期刊:
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