On Crosstalk Aware Energy and Spectrum Efficient Survivable RSCA Scheme in Offline SDM-EON

被引:6
作者
Halder, Joy [1 ]
Acharya, Tamaghna [1 ]
Bhattacharya, Uma [1 ]
机构
[1] Indian Inst Engn Sci & Technol, Sibpur 711103, Howrah, India
关键词
SDM-EON; Highest utilized spectrum; Power consumption; Crosstalk; MILP; Genetic algorithm; ELASTIC OPTICAL NETWORKS; RESOURCE-ALLOCATION; CORE ASSIGNMENT; ALGORITHMS; RESERVATION; MODULATION; PROTECTION; COST;
D O I
10.1007/s10922-021-09614-8
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
This paper proposes an energy and spectrum efficient scheme for routing, spectrum, and core assignment integrated with offline traffic survivability in space division multiplexed elastic optical network (SDM-EON). Survivability is ensured by using multipath based approach against single link failure. The number of frequency slots to accommodate traffic is allocated in single (multiple) core(s) of the links of the selected paths and this may create inter-core crosstalk, which is also taken care of in this scheme. To validate the proposed scheme's energy efficiency, a spectrum efficient routing, spectrum and core allocation (RSCA) scheme has been developed for offline SDM-EON. Mixed integer linear programming (MILP) models are formulated for both the schemes. RSCA problem being NP-hard in nature, any approach based on MILP leads to intractability and hence becomes infeasible for the large data set. Genetic algorithm (GA) based heuristics are proposed in this paper to address this challenging implementation issue. The performance of these two schemes based on MILP and GA is evaluated by conducting simulation experiments. The closeness of the proposed GA-based solution with optimal values has been established. It is also observed that both spectrum utilization and power consumption decrease with an increase in the number of cores in SDM-EON.
引用
收藏
页数:35
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