2012 16th International Conference on Optical Network Design and Modelling (ONDM)最新文献_第5页

Optimal allocation of virtual optical networks for the future internet 面向未来互联网的虚拟光网络优化配置

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210209

A. Pagès, J. Perelló, S. Spadaro, J. A. G. Espín, J. Riera, S. Figuerola

引用次数: 43

Optical switching for dynamic distribution of wireless-over-fiber signals 用于光纤上无线信号动态分配的光交换

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210189

G. A. Rodes, J. Olmos, F. Karinou, Ioannis Roudas, Lei Deng, Xiaodan Pang, I. Monroy

引用次数: 1

From static to software-defined optical networks 从静态到软件定义光网络

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210207

J. Elbers, A. Autenrieth

引用次数: 47

A novel meta-heuristic approach for optical monitoring-tree design in WDM networks 一种新的元启发式WDM网络光监控树设计方法

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210188

E. Doumith, S. A. Zahr, M. Gagnaire

{"title":"A novel meta-heuristic approach for optical monitoring-tree design in WDM networks","authors":"E. Doumith, S. A. Zahr, M. Gagnaire","doi":"10.1109/ONDM.2012.6210188","DOIUrl":"https://doi.org/10.1109/ONDM.2012.6210188","url":null,"abstract":"Thanks to recent advances in WDM technologies, an optical fiber is capable to carry up to 200 wavelengths operating at 40 Gbps each. In such high speed networks, service disruptions caused by network failures (e.g., fiber cut, amplifier dysfunction) may lead to high data losses. A network operator should be able to promptly locate such failures, in order to perform fast restoration. Hence, an efficient fault detection and localization mechanism is mandatory for reliable network design. In previous work, we have introduced the concept of monitoring-trees (m-trees) to achieve fast link failure detection and localization. We have proposed an integer linear programming (ILP) approach for the design of an m-tree solution that minimizes the number of required optical monitors, while achieving unambiguous failure detection and localization. In this paper, we propose a novel approach, based on the well known simulated annealing meta-heuristic, for the m-tree design in WDM networks. Simulations conducted in this study show the same results as the ILP approach at much lower computation time. Our proposal can thus be applied to large-sized and very large-sized networks.","PeriodicalId":151401,"journal":{"name":"2012 16th International Conference on Optical Network Design and Modelling (ONDM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129219926","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

Scheduled multicast overlay for bandwidth-intensive applications 用于带宽密集型应用的计划多播覆盖

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210278

Timothy Entel, A. Gadkar, V. Vokkarane

{"title":"Scheduled multicast overlay for bandwidth-intensive applications","authors":"Timothy Entel, A. Gadkar, V. Vokkarane","doi":"10.1109/ONDM.2012.6210278","DOIUrl":"https://doi.org/10.1109/ONDM.2012.6210278","url":null,"abstract":"In this paper we investigate the multicast advance reservation problem in wavelength division multiplexed (WDM) optical networks. Under the advance reservation traffic model (also know as scheduled traffic), connection requests specify their start time to be some time in the future and also specify their holding times. Traditionally, in WDM networks, the multicasting functionality is supported by assuming that the optical cross connects are multicast capable i.e., they are capable of switching an incoming signal to multiple output interfaces. To support the multicasting functionality in a multicast incapable (MI) network, one can use a naive approach of creating a virtual topology consisting of wavelength routes (lighpaths) from the multicast source to each destination of the multicast session. This approach tends to consume a lot of network bandwidth and may become unacceptable as the number of the multicast sessions increase. We refer to this approach of provisioning the multicast requests as Multicast via WDM Unicast (MVWU) approach. To efficiently provision the users' scheduled multicast requests in a MI network, we propose two overlay solutions: Drop at Member Node (DAMN) and Drop at Any Node (DAAN). In these solutions, we achieve multicasting by creating a set of lightpath routes (possibly multiple hops) in the overlay layer. We consider a static set of scheduled multicast requests and present integer linear programs (ILPs) to solve the DAMN and DAAN problems, with a goal to minimize the total number of wavelengths required to service the request set. We also present an efficient heuristic and compare its performance to the ILP for a small network, and evaluate its performance for large-scale networks. Moreover, we also present an ILP to solve the naive MVWU approach and compare its performance to the DAMN and DAAN.","PeriodicalId":151401,"journal":{"name":"2012 16th International Conference on Optical Network Design and Modelling (ONDM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130992073","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: 9

Street-aware infrastructure planning tool for Next Generation Optical Access networks 下一代光接入网的街道感知基础设施规划工具

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210219

O. Kipouridis, C. M. Machuca, A. Autenrieth, K. Grobe

引用次数: 15

Upgrading cost modelling of capacity-exhausted static WDM networks 改进容量耗尽静态WDM网络的成本模型

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210194

A. Leiva, C. M. Machuca, A. Beghelli

引用次数: 10

Traffic prediction based wavelength resource management considering holding time 考虑保持时间的基于流量预测的波长资源管理

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210277

Naohiro Wakabayashi, Y. Hirota, H. Tode, K. Murakami

{"title":"Traffic prediction based wavelength resource management considering holding time","authors":"Naohiro Wakabayashi, Y. Hirota, H. Tode, K. Murakami","doi":"10.1109/ONDM.2012.6210277","DOIUrl":"https://doi.org/10.1109/ONDM.2012.6210277","url":null,"abstract":"Optical WDM networks are expected for future multimedia services. The multimedia services require stable connections with various length of holding time. While some multimedia services use optical path connections in only minute, other multimedia services use them in several hours. As network perspective, the overhead of connection setup has much influence in the case of short-term connections. On the other hand, longterm connections occupy assigned network resources for long periods. Thus, it is important to assign the appropriate wavelength considering the holding time. Furthermore, the network traffic is large and rapidly changes in time. Therefore, the method that accurately estimates the state of the current traffic and predicts the state of future traffic becomes more important. In this paper, we propose a novel traffic prediction method that can deal with large changes in traffic in optical WDM networks. The proposed prediction method is classified into two categories; “short-term traffic state estimation” and “longterm traffic trend prediction”. Traffic is predicted by using these two methods cooperatively and complementarily. We also propose a wavelength assignment method exploiting this traffic prediction. The proposed wavelength assignment method sets optical paths considering the prediction information and the holding time of connections. Each connection with different holding time is allocated wavelength resources in the limited range based on the traffic prediction information dynamically. We evaluate the performance of the proposed method by computer simulations and confirm that the proposed method can achieve better performance than the traditional method does.","PeriodicalId":151401,"journal":{"name":"2012 16th International Conference on Optical Network Design and Modelling (ONDM)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129670216","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

Study of the performance of an optical packet switch architecture with highly distributed control in a data center environment 数据中心环境下具有高度分布式控制的光分组交换机体系结构的性能研究

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210266

S. Lucente, R. P. Centelles, H. Dorren, N. Calabretta

{"title":"Study of the performance of an optical packet switch architecture with highly distributed control in a data center environment","authors":"S. Lucente, R. P. Centelles, H. Dorren, N. Calabretta","doi":"10.1109/ONDM.2012.6210266","DOIUrl":"https://doi.org/10.1109/ONDM.2012.6210266","url":null,"abstract":"We investigate the performance of an optical packet switch architecture with highly distributed control for interconnecting cluster switches in a data center environment. The optical packet switch under investigation can be scaled to a very large port count to interconnect a large number of cluster switches. Flow control is employed to regulate the packets transmission between the electronic buffers of the ingress and egress cluster switches. An important feature of the optical packet switch is that the switch can be re-configured in few nanoseconds regardless the port count. This is essential to minimize the end-to-end latency. Moreover, the limited contention resolution capability of the optical packet switch is compensated by the electronic buffers in the cluster switches. We numerically investigate the performance of an optical packet switch with 1024×1024 ports in terms of packet loss, throughput and latency in function of the electronic buffer capacity and number of retransmissions. Simulations results show that increasing the input buffer size allows for low packet loss at the expense of higher latency. On the contrary, limiting the number of retransmissions allows very low end-to-end latency but higher losses. For a system with 1024 in/out ports with a buffer size of 19 packets and a resend limit equal to 9, we obtain a packet loss lower than 10-3 and latency around 800 ns considering an input load of 0.5.","PeriodicalId":151401,"journal":{"name":"2012 16th International Conference on Optical Network Design and Modelling (ONDM)","volume":"149 8‐10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120836517","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: 12

Economic modelling of uncertain next-generation network evolution 不确定下一代网络演化的经济模型

2012 16th International Conference on Optical Network Design and Modelling (ONDM) Pub Date : 2012-04-17 DOI: 10.1109/ONDM.2012.6210193

C. K. Kallo, J. Dunne, R. Carley, Conor O'Malley, V. López, J. Palacios

{"title":"Economic modelling of uncertain next-generation network evolution","authors":"C. K. Kallo, J. Dunne, R. Carley, Conor O'Malley, V. López, J. Palacios","doi":"10.1109/ONDM.2012.6210193","DOIUrl":"https://doi.org/10.1109/ONDM.2012.6210193","url":null,"abstract":"In this paper the uncertainties and the implied level of risk associated with next-generation network architectures is modelled using Monte Carlo simulation, aimed at understanding network economics evolution. A high number of network parameters - like incremental network deployment, data centre location, network architecture, service mix, traffic growth and subscriber take-up - are modelled. A wide range of values is used for these parameters to gain understanding of their impact on network cost. Such an approach provides insight into the risk level undertaken by operators when building their network infrastructure based on a specific forecast. Thus, the core result of this analysis is that a sub-wavelength optical packet forwarding technology can de-risk network investments by 500% when compared to a next-generation IPoDWDM solution. Second, in a scaled network scenario the sub-wavelength solution also provides 150% capital savings. Finally, on the medium and long term the sub-wavelength approach yields a cost benefit for 99.8% of the configurations, when compared to an IPoDWDM architecture.","PeriodicalId":151401,"journal":{"name":"2012 16th International Conference on Optical Network Design and Modelling (ONDM)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134347308","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