2015 International Conference on Optical Network Design and Modeling (ONDM)最新文献_第3页

Virtual PON assignment for fixed-mobile convergent access-aggregation networks 固定移动融合接入汇聚网络的虚拟PON分配

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127298

A. Buttaboni, M. D. Andrade, M. Tornatore, A. Pattavina

{"title":"Virtual PON assignment for fixed-mobile convergent access-aggregation networks","authors":"A. Buttaboni, M. D. Andrade, M. Tornatore, A. Pattavina","doi":"10.1109/ONDM.2015.7127298","DOIUrl":"https://doi.org/10.1109/ONDM.2015.7127298","url":null,"abstract":"TWDM PON is a promising candidate to become the backhauling infrastructure of Fixed Mobile Converged (FMC) access-aggregation networks. One of the main features of a FMC network is that different types of traffic (that support, e.g., fixed and mobile network services) are transported over the same infrastructure, and the coexistence of different traffic types poses complex challenges in terms of capacity assignment as well as traffic management. If TWDM is the technology of choice, one question naturally raises: is it better to isolate different types of traffic over different wavelengths (i.e., Layer-1 convergence) or to share wavelength capacities among the different traffic types (i.e., Layer-2 convergence)? In the first case, to isolate the different types of traffic, we can assign logically-separated Virtual PONs (VPONs) to different traffic types, that will operate on disjoint sets of wavelengths. In the second case, different traffic types can share the same wavelengths in the network (i.e., a single convergent TWDM PON is used). We first model the problem resorting to a modified version of the classical bin packing problem. Then, through both numerical and qualitative considerations, we investigate the trade-offs between the two options under different scenarios in terms of traffic loads, user distribution, and network capacity.","PeriodicalId":282743,"journal":{"name":"2015 International Conference on Optical Network Design and Modeling (ONDM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114992172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Multilayer flex-grid network planning 多层柔性电网规划

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127290

P. Papanikolaou, K. Christodoulopoulos, Emmanouel Varvarigos

引用次数: 16

CAPEX/OPEX benefits of alien wavelengths for the next generation optical internet 下一代光学互联网的外来波长的资本支出/运营成本效益

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127285

A. M. Fagertun, S. Ruepp, B. Skjoldstrup

引用次数: 2

Influence of software and hardware failures with imperfect fault coverage on PONs OPEX 故障覆盖不完全的软硬件故障对PONs OPEX的影响

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127269

Alvaro Fernández, N. Stol

{"title":"Influence of software and hardware failures with imperfect fault coverage on PONs OPEX","authors":"Alvaro Fernández, N. Stol","doi":"10.1109/ONDM.2015.7127269","DOIUrl":"https://doi.org/10.1109/ONDM.2015.7127269","url":null,"abstract":"Passive Optical Networks (PONs) are one of the preferred technologies to deploy broadband access networks. As time passes, end users presuppose network connectivity to be always available, and expect PONs to be highly dependable. Yet operators, from an economic view, are interested in the costs related to failures. Thus, PONs dependability and associated costs have been extensively studied, but only focusing on hardware failures. Contrarily, this paper performs a thorough analysis of the impact of software failures in failure-related costs. Based on real empirical data, software failures are thoroughly characterized and classified in four different categories according to their severity. Also, the effect of software failures on the behavior of PON's fiber protection and recovery mechanisms is detailed. Software failures are included into a Markov cost model, implementing a comprehensive cost framework. This way, the dependability-related costs of PONs are analyzed, accounting for hardware and software failures, as well as for the consequences of software failures on well-known PON protection mechanisms. Moreover, how the testing phase duration and user profile (residential or business) impact these costs is pinpointed.","PeriodicalId":282743,"journal":{"name":"2015 International Conference on Optical Network Design and Modeling (ONDM)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125754656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

5G radio access network and its requirements on mobile optical network 5G无线接入网及其对移动光网络的要求

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127265

T. Asai

引用次数: 19

Where do we stand and where are we heading in making NG-PONs more energy efficient ? 在使ng - pon更节能方面，我们的现状如何?我们的目标是什么?

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127300

L. Valcarenghi

引用次数: 5

Non-linear impairment modeling for flexgrid network and its application in offline network equipment upgrade strategy 柔性电网的非线性损伤建模及其在网络设备离线升级策略中的应用

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127274

A. Mitra, D. Ives, A. Lord, P. Wright, Subrat Kar

引用次数: 7

Efficient label encoding in segment-routing enabled optical networks 在支持分段路由的光网络中有效的标签编码

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127270

Francesco Lazzeri, G. Bruno, J. Nijhof, A. Giorgetti, P. Castoldi

{"title":"Efficient label encoding in segment-routing enabled optical networks","authors":"Francesco Lazzeri, G. Bruno, J. Nijhof, A. Giorgetti, P. Castoldi","doi":"10.1109/ONDM.2015.7127270","DOIUrl":"https://doi.org/10.1109/ONDM.2015.7127270","url":null,"abstract":"The currently standardized GMPLS protocol suite for packet over optical networks relies on hierarchical instances of signaling sessions. Such sessions have to be established and maintained also in transit nodes, leading to complex and weighty control plane implementations. A novel technology called Segment Routing (SR) has been recently proposed to address these issues. SR relies on the source routing paradigm to provide traffic engineering solutions. In particular, the computed route for a given request is expressed as a segment list applied as an header to data packets at the ingress node. Specific algorithms are then required to perform the path computation and express the computed path through an effective segment list encoding (i.e., label stack), minimizing the segment list depth (SLD) (i.e., the number of labels included in the segment list). So far, no algorithms have been proposed to jointly provide path and segment list computation in SR-based networks. In this study, an efficient segment list encoding algorithm is proposed, guaranteeing optimal path computation and limited SLD in SR-based networks. The algorithm also accounts for equal-cost multiple paths and multiple constraints. The proposed algorithm is successfully applied to different network scenarios, demonstrating its flexibility in several use cases and showing effective performance in terms of segment list depth and introduced packet overhead.","PeriodicalId":282743,"journal":{"name":"2015 International Conference on Optical Network Design and Modeling (ONDM)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130676468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 47

Blocking performance of cost efficient integrated OTN/WDM metropolitan networks in static traffic scenario 静态流量场景下低成本OTN/WDM城域网的阻塞性能

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127299

V. Eramo, M. Listanti, F. Lavacca, R. Sabella, F. Testa

引用次数: 1

Handling outdated information in optical PCE environments 在光学PCE环境中处理过时的信息

2015 International Conference on Optical Network Design and Modeling (ONDM) Pub Date : 2015-05-11 DOI: 10.1109/ONDM.2015.7127271

W. Ramírez, X. Masip-Bruin, E. Marín-Tordera, S. Sánchez-López, Vitor Barbosa C. Souza

引用次数: 2