2008 International Conference on Optical Network Design and Modeling最新文献_第3页

Routing and wavelength assignment encompassing FWM in WDM lightpath networks WDM光路网络中包含FWM的路由和波长分配

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578385

A. Marsden, A. Maruta, K. Kitayama

引用次数: 43

Emulating lossless, one-way signaling protocols in OBS networks with traffic prediction 模拟具有流量预测的OBS网络中的无损单向信令协议

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578404

D. Monoyios, K. Vlachos

引用次数: 2

A mean value analysis approach for evaluating the performance of EPON with Gated IPACT 基于门控IPACT的EPON性能评价的均值分析方法

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578407

M. Thanh Ngo, A. Gravey, D. Bhadauria

{"title":"A mean value analysis approach for evaluating the performance of EPON with Gated IPACT","authors":"M. Thanh Ngo, A. Gravey, D. Bhadauria","doi":"10.1109/ONDM.2008.4578407","DOIUrl":"https://doi.org/10.1109/ONDM.2008.4578407","url":null,"abstract":"The Broadband Passive Optical Network (PON) technology is a promising approach to establish a cost-effective access network. It is intended to provide a simple, low cost, scalable solution capable of delivering broadband access to end users, by passively sharing a single optical fiber transmission system between several packets. While downstream traffic is broadcast to all packets, the access of upstream traffic to the fiber has to be arbitrated in order to avoid collisions. This arbitration mechanism and more generally, bandwidth distribution and QoS Provisioning, have been left to the implementer. Interleaved Polling with Adaptive Cycle Time (IPACT) is one of the earliest proposed schemes for bandwidth distribution in Ethernet PON (EPON) and has been extensively used as a benchmark by many subsequent allocation schemes. In this paper, we propose an analytical model which yields approximate values for mean queue length and mean packet delay in an EPON with the Gated IPACT scheme under the assumption of Poisson arrivals. We show by simulation that the model is remarkably accurate over the whole load range. We use the model to demonstrate that all ONUs experiment performance degradation in case of local overload by some ONUs, thus showing the necessity of correcting somehow the Gated policy in order to avoid this phenomenon.","PeriodicalId":155835,"journal":{"name":"2008 International Conference on Optical Network Design and Modeling","volume":"7 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113980834","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: 20

Dimensioning aggregated voice traffic in MPLS nodes 对MPLS节点的聚合语音流量进行量纲化

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578394

A. Estepa, R. Estepa, I. Campos, A. Delgado

{"title":"Dimensioning aggregated voice traffic in MPLS nodes","authors":"A. Estepa, R. Estepa, I. Campos, A. Delgado","doi":"10.1109/ONDM.2008.4578394","DOIUrl":"https://doi.org/10.1109/ONDM.2008.4578394","url":null,"abstract":"MPLS offers a efficient transport scheme and traffic engineering capabilities for real-time VoIP. However, at the transport plane, the bandwidth reserved for voice traffic is a key parameter necessary to ensure performance guarantees for VoIP communications. This paper addresses this important piece of traffic engineering: determining the bandwidth requirements for voice traffic aggregated. To achieve our goal we first define a model for a generic voice source which embodies any current type of voice source (which we name Generalized VoIP source). Then, we extend the fluid model with our new GVoIP source to obtain a loss and delay prediction for each multiplexer node. Finally, we design a simple but efficient dimensioning algorithm that provides the bandwidth requirement for a desired performance when multiplexing a number of homogeneous GVoIP sources. Using of dimensioning algorithm we compare the bandwidth requirements for two transport schemes VoIP over MPLS and VoMPLS. Results confirm that our extended multiplexing analytical model improves the estimation of the bandwidth requirement of a voice traffic trunk over MPLS, whereas any other on-off based dimensioning model is not valid for these kind of codecs.","PeriodicalId":155835,"journal":{"name":"2008 International Conference on Optical Network Design and Modeling","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123559594","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: 4

Dimensioning an optical packet/burst switch — More interconnections or more delay lines? 光分组/突发交换机的尺寸-更多的互连还是更多的延迟线?

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578388

K. Aziz, S. Sarwar, S. Aleksic

{"title":"Dimensioning an optical packet/burst switch — More interconnections or more delay lines?","authors":"K. Aziz, S. Sarwar, S. Aleksic","doi":"10.1109/ONDM.2008.4578388","DOIUrl":"https://doi.org/10.1109/ONDM.2008.4578388","url":null,"abstract":"We present performance evaluation of an optical packet/burst switch with internal fiber rings. Such a switch consists of multiple fabrics linked together by direct interconnections and optical delay lines. Having more number of optical delay lines and direct interconnections per fabric pair reduces contention and results in a reduced blocking probability. However, due to the size and cost of optical delay lines, it is desirable to minimize their number for a specific blocking probability. We propose an analytical model for the switch in order to study its scalability and packet/burst blocking probability. The switch is then dimensioned for given values of blocking probability and a given range of input load. Simulation results concerning switch scalability by taking into account the most relevant physical effects are also shown. We then consider the minimal practical switch size and discuss how the switch can be dimensioned with a combination of delay lines and direct interconnections to achieve our target of a certain blocking probability and range of input load using a minimum number of fiber delay lines.","PeriodicalId":155835,"journal":{"name":"2008 International Conference on Optical Network Design and Modeling","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122363495","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: 10

A Computer Aided Design for optimization of optical networks 光网络优化的计算机辅助设计

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578395

M. Fontana, Fabiano F. Costa, U. Sangiorgi, P.A.D. Bichara, Diana Guimarães, A. Lima

引用次数: 6

An educational RWA network planning tool for dynamic flows 动态流的教育RWA网络规划工具

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578387

P. Pavón-Mariño, B. Garcia-Manrubia, R. Aparicio-Pardo, J. García-Haro, G. Moreno-Muñoz

引用次数: 4

Distributed RWA tools via Web Services 通过Web服务的分布式RWA工具

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578416

C. Gaumier, S. Rumley

引用次数: 2

Differentiated survivability in a distributed GMPLS-based IP-over-optical network 基于gmpls的分布式ip -over-光网络的差异化生存能力

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578400

D. Harle, S. Albarrak

引用次数: 2

Provisioning lightpaths and computing resources for location-transparent scheduled grid demands 为位置透明的调度网格需求提供光路和计算资源

2008 International Conference on Optical Network Design and Modeling Pub Date : 2008-03-12 DOI: 10.1109/ONDM.2008.4578408

Hong-Ha Nguyen, Mohan Gurusamy, Luying Zhou

{"title":"Provisioning lightpaths and computing resources for location-transparent scheduled grid demands","authors":"Hong-Ha Nguyen, Mohan Gurusamy, Luying Zhou","doi":"10.1109/ONDM.2008.4578408","DOIUrl":"https://doi.org/10.1109/ONDM.2008.4578408","url":null,"abstract":"In this paper, we define a new problem of provisioning lightpaths and computing resources for a set of location- transparent scheduled grid demands in optical grid networks. A location-transparent scheduled grid demand specifies only an amount of computing resources needed in a specified time interval to process input data. The network node generating a demand is called a client node. There are several network nodes which have sufficient resources for a demand. These nodes are called resource nodes. An algorithm is used to choose a resource node to reserve a specified amount of computing resources and provision a lightpath between the resource node and the client node. Given a set of location-transparent scheduled grid demands, it is required to provision the best lightpath (i.e. wavelength resources) as well as computing resources available during the specified time interval for each demand so as to optimize a certain objective function. In our work, we develop integer linear programming (ILP) formulations for 2 objective functions: 1) Given a network capacity, maximize the number of demands accepted; 2) Minimize the total number of wavelength-links to honor a given set of demands. Because the ILP algorithms are computationally expensive, we also develop heuristics to deal with large networks. The simulation results show that our heuristics achieve good performance.","PeriodicalId":155835,"journal":{"name":"2008 International Conference on Optical Network Design and Modeling","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115661546","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: 8