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Routing algorithms in IP/WDM networks based on hop-constraint lightpath establishment approach

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7 Author(s)
Tong Ye ; State Key Lab of Adv. Opt. Commun. Syst. & Networks, Shanghai Jiaotong Univ., China ; Qingji Zeng ; Wei Wei ; Guolong Zhu
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To achieve higher resource utilization in IP/WDM networks, this paper develops an approach called hop-constraint lightpath establishment approach (HCLEA) to improve existing routing algorithms. HCLEA prevents the routing algorithm from creating long lightpaths with low efficiency. Simulation results show that HCLEA can achieve a significant improvement in terms of resource utilization and bandwidth blocking ratio.

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IEEE Communications Letters  (Volume:9 ,  Issue: 2 )