Service-Classified Routing, Core, and Spectrum Assignment in Spatial Division Multiplexing Elastic Optical Networks With Multicore Fiber

Zhu, Qingcheng; Liu, Lulu; Zhu, Lei; Wang, Ting; Gao, Lihang; Yu, Lei; Chen, Bowen; Zhang, Qianwu

doi:10.1109/acp.2018.8596169

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…Lei et al [4] tried to minimize crosstalk by presenting a new RSCA heuristic for online traffic in SDM-EON. Zhu et al [16] proposed a serviceclassified based routing, spectrum, and core assignment for multicore fiber-based SDM-EON. Yang et al [17] proposed a dynamic fuzzy clustering-based resource assignment scheme in SDM-EON, which effectively reduces blocking probability and resource utilization.…”

Section: Literature Surveymentioning

confidence: 99%

“…ii) Number of paths to be selected in multipath based survivability is considered to be either two or three. iii) Cores are classified [13], [16] [27] into various regions which helps reduce spectral fragmentation to a great extent [21]. iv) Core switching has not been considered here.…”

Section: Problem Definitionmentioning

confidence: 99%

“…The proposed core selection strategy (described in algorithm 4) uses core classification [13], [16] [27] method based on the traffic demand for the connection request. The central (first) core is the common core, which can accommodate demands of any size.…”

Section: Core Selectionmentioning

confidence: 99%

See 2 more Smart Citations

On Energy Efficient Survivable Multipath Based Approaches in Space Division Multiplexing Elastic Optical Network: Crosstalk-Aware and Fragmentation-Aware

Paira

Halder

Chatterjee³

et al. 2020

IEEE Access

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In this paper, we have proposed two energy-efficient heuristics: (i) CMDE-RSCA (crosstalk-aware), and (ii) FMDE-RSCA (fragmentation-aware) to address the issues of inter-core crosstalk, and fragmentation within the core respectively-to ensure quality transmission of the optical signal for dynamic traffic in space division multiplexing elastic optical network (SDM-EON), while maintaining survivability of the network against single link failure. These heuristics based on multipath based survivability are compared with three existing survivable approaches based on p-cycles and shared path in terms of bandwidth blocking, energy consumption, crosstalk, and fragmentation. Both these algorithms outperform all three existing heuristics in terms of all parameters. In between CMDE-RSCA and FMDE-RSCA, CMDE-RSCA leads to consume lesser energy, whereas FMDE-RSCA produces lesser bandwidth blocking.

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Section: Literature Surveymentioning

confidence: 99%

Section: Problem Definitionmentioning

confidence: 99%

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On Energy Efficient Survivable Multipath Based Approaches in Space Division Multiplexing Elastic Optical Network: Crosstalk-Aware and Fragmentation-Aware

Paira

Halder

Chatterjee³

et al. 2020

IEEE Access

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“…By using (9), we get the average set-up delay of optical connections for N r requests as (10). Equation ( 10) is an arithmetic sequence, and consequently we get the formula of average optical connections set-up delay of N r requests as (11) according to the sum formula of the arithmetic sequence.…”

Section: ) Sequential Optical Connections Set-up Strategymentioning

confidence: 99%

“…Generally, different services have different requirements on QoS [11], and such requirements include the delay, delay tolerance, reliability, availability, scalability, effectiveness, grades of service etc. [12].…”

Section: Introductionmentioning

confidence: 99%

Delay Aware RSA Algorithm Based on Scheduling of Differentiated Services With Dynamic Virtual Topology Construction

et al. 2020

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The fast and diversified development of Internet services leads to numerous services with differentiated delay tolerance of optical connections set-up are converging in the optical network. Consequently, the average set-up delay of optical connection is increased, which will inevitably bring pressures to optical networks. To solve this problem, a delay aware routing spectrum assignment (RSA) algorithm based on services scheduling in priority queues with dynamic virtual topology construction (QVT-RSA) is proposed. First, the QVT-RSA algorithm reasonably identifies various different services and arranges them in order according to their priority, waiting time and delay tolerance requirements. Then, software defined networks (SDN) controller with multi-threads technology is adopted to innovatively parallel serve the ordered service requests to reduce the average set-up delay of optical connections, which also offset the induced delay caused by services scheduling. The network resource is accurately shared among multi-threads using the proposed mutual exclusive resource utilization model realized by dynamic virtual topology construction. The continuously coloring and usable virtual topology linkage reconfiguration can provide topology resources for service requests and adapt the dynamic transformation among serving, waiting and new arriving service requests. The shortest-path routing and first fit spectrum assignment (SPFF-RSA) algorithm is used as the baseline algorithm. Furthermore, by combining the SPFF-RSA algorithm and partial strategy of our strategy, the QSPFF-RSA and V-RSA algorithms are proposed as baseline algorithms as described in V-B. The simulation experiment results demonstrate that the average optical connections set-up delay of QVT-RSA algorithm is reduced compared with SPFF-RSA and QSPFF-RSA algorithms, and the blocking probability of QVT-RSA algorithm is reduced compared with SPFF-RSA, QSPFF-RSA and VRSA algorithms. The optical connections set-up success probability within delay tolerance about high, medium and low priority services of QVT-RSA algorithm is higher than that of the SPFF-RSA, QSPFF-RSA and VRSA algorithms.INDEX TERMS Low delay, QoS, reconfiguration of virtual topology, RSA, services scheduling.

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

2021

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Service-Classified Routing, Core, and Spectrum Assignment in Spatial Division Multiplexing Elastic Optical Networks With Multicore Fiber

Cited by 6 publications

References 9 publications

On Energy Efficient Survivable Multipath Based Approaches in Space Division Multiplexing Elastic Optical Network: Crosstalk-Aware and Fragmentation-Aware

On Energy Efficient Survivable Multipath Based Approaches in Space Division Multiplexing Elastic Optical Network: Crosstalk-Aware and Fragmentation-Aware

Delay Aware RSA Algorithm Based on Scheduling of Differentiated Services With Dynamic Virtual Topology Construction

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

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