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Connection Availability in WDM Mesh Networks with Multiple Failures 多重故障下WDM Mesh网络的连接可用性
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248417
L. Wosinska
{"title":"Connection Availability in WDM Mesh Networks with Multiple Failures","authors":"L. Wosinska","doi":"10.1109/ICTON.2006.248417","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248417","url":null,"abstract":"Wavelength division multiplexed (WDM) technology has revolutionized wide-area networks. As the amount of traffic carried is very large, any single failure can be catastrophic. Thus, survivability of a network that refers to a network's capability to provide continuous service in the presence of failures has become crucial in such networks. Communication networks are usually designed to survive single failure. However, in large networks the occurrence of multiple concurrent failures cannot be neglected. Therefore, in this paper we study connection availability in WDM networks assuming failures of any multiplicity. Shared path protection (SPP) scheme is an efficient network recovery mechanism in terms of network resource utilization and in many related works the SPP scheme has been studied to solve a single failure problem. We apply SPP scheme and propose an analytical model for calculation of connection unavailability in WDM mesh networks with multiple failure assumption. We have evaluated our model by simulations and show that the connection unavailability obtained by simulations is very close to the theoretical value obtained by our algorithm, which proves the accuracy of our model","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115603672","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: 5
Fault Management in Transparent Optical Networks 透明光网络中的故障管理
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248422
B. Rejeb, M. Leeson, R. Green
{"title":"Fault Management in Transparent Optical Networks","authors":"B. Rejeb, M. Leeson, R. Green","doi":"10.1109/ICTON.2006.248422","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248422","url":null,"abstract":"All-optical networks (AONs) are a relatively new technology for very high data rate communications, flexible switching and broadband application support. More specifically, they provide transparency features allowing routing and switching of data without interpretation or regression of signals within the network. AONs contain only transparent optical components and therefore differ to a large extent from the optical networks currently used. In particular, the behaviors of AON components and architectures bring forth a new set of challenges for network security. As a result, AONs have unique features and requirements in terms of security and quality of service that require a highly targeted approach in terms of network management. This paper presents and analyzes an algorithm for multiple failure localization and identification in AONs. This algorithm utilizes fewer monitoring information than is required by other approaches. As a direct consequence, it offers the benefit of relaxing the high cost and complexity of signal quality monitoring for future AON management solutions. The paper concludes with a discussion tacking into consideration the interaction of this algorithm with typical path recovery schemes","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124995915","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: 6
Design Considerations for a High-Speed Metro Network Using All-Optical Packet Processing 采用全光分组处理的高速城域网的设计考虑
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248406
S. Aleksic
{"title":"Design Considerations for a High-Speed Metro Network Using All-Optical Packet Processing","authors":"S. Aleksic","doi":"10.1109/ICTON.2006.248406","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248406","url":null,"abstract":"Future metropolitan area networks (MANs) must be capable of providing high bandwidth, supporting multiple protocols, fast provisioning of different granularities of bandwidth, as well as good scalability and protection. All-optical packet switching, while combining high throughput with a large flexibility, might be a good candidate for next-generation MANs. This paper reports on a dynamic metro network that uses all-optical packet processing and switching techniques. The proposed MAN comprises a high data rate ring that interconnects concentration nodes equipped with optical switches, modules for optical data rate conversion, all-optical clock recovery, and header recognition based upon optical code correlation. Some preliminary results of our analysis performed on both module and system levels are presented","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114748583","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
Performance in a Failure Situation of an OpMiGua Packet Switch with Internal Blocking 内部阻塞OpMiGua分组交换机故障情况下的性能分析
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248440
A. Kimsas, H. Overby, S. Bjornstad, N. Stol
{"title":"Performance in a Failure Situation of an OpMiGua Packet Switch with Internal Blocking","authors":"A. Kimsas, H. Overby, S. Bjornstad, N. Stol","doi":"10.1109/ICTON.2006.248440","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248440","url":null,"abstract":"Differentiated survivability is a crucial quality of service (QoS) issue in future optical networks. Traffic streams belonging to applications demanding high availability should not be disrupted by the recovery process initiated after a node-failure. A recent study suggested to protect high-priority traffic by exploiting the inherent redundancy in the all-optical OpMiGua node. This article compares performance of high and low priority traffic before and after partial node-failure. Simulations are performed for an internally blocking and an internally nonblocking node. The results provide insight to the underlying effects causing packet loss in an internally blocking OpMiGua node and gives directions to future work","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121789198","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: 1
On the Oriented Network Design Problem 面向网络设计问题研究
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248413
J. Žerovnik
{"title":"On the Oriented Network Design Problem","authors":"J. Žerovnik","doi":"10.1109/ICTON.2006.248413","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248413","url":null,"abstract":"The cost of a network with a routing is defined as a sum of arc costs that depend on the capacity only. The capacity corresponds to the number of paths of the routing that traverse the arc. We sketch some simple observations that may give insight in the partial order among possible network designs","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130481113","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: 0
A QoS-Based Restoration Mechanism for OBS Networks 基于qos的OBS网络恢复机制
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248392
S. Said, H. Mouftah, H. Elbiaze
{"title":"A QoS-Based Restoration Mechanism for OBS Networks","authors":"S. Said, H. Mouftah, H. Elbiaze","doi":"10.1109/ICTON.2006.248392","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248392","url":null,"abstract":"QoS support and network survivability are crucial issues in optical burst switched (OBS) networks to form a smooth transition toward next generation optical Internet. This paper presents a QoS-based restoration mechanism for OBS networks based on offset time extensions. Simulation studies verified the role of the offset time in the restoration mechanism and its attitudinal character to define QoS levels","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131538548","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
Quality of Service in OBS Networks: Issues, Challenges and Solutions OBS网络的服务质量:问题、挑战和解决方案
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248391
H. Elbiaze
{"title":"Quality of Service in OBS Networks: Issues, Challenges and Solutions","authors":"H. Elbiaze","doi":"10.1109/ICTON.2006.248391","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248391","url":null,"abstract":"In OBS networks, contention caused by multiple bursts competing simultaneously for a given wavelength on a fiber link, significantly increases the burst dropping probability and hence deteriorates the overall network performance. Several studies tackled the contention resolution in OBS networks; however several issues still need to be addressed such as quality of service (QoS) guarantee, protection and restoration. The separation between the control plane and data plane in OBS networks provides the flexibility needed by next generation networks. However, it raises the complicated calculation problem of the appropriate offset time for each burst to reach its destination without dropping. In this paper, we stress out the QoS guarantee, protection and restoration challenges in OBS networks. We focus on the importance of the choice of the offset time and its criticality in influencing: (i) the burst loss phenomenon in OBS networks, and (ii) the protection/restoration strategies","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122901987","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: 1
Optical IP Switching a Solution to Dynamic Lightpath Establishment in Disaggregated Network Architectures 光IP交换:解耦网络架构中动态光路建立的解决方案
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248405
G. Mulvihill, M. Ruffini, F. Smyth, L. Barry, L. Doyle, D. O'Mahony
{"title":"Optical IP Switching a Solution to Dynamic Lightpath Establishment in Disaggregated Network Architectures","authors":"G. Mulvihill, M. Ruffini, F. Smyth, L. Barry, L. Doyle, D. O'Mahony","doi":"10.1109/ICTON.2006.248405","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248405","url":null,"abstract":"The landscape of the telecommunications environment is constantly evolving; in terms of architecture and increasing data-rate. Ensuring that routing decisions are taken at the lowest possible layer offers the possibility of greatest data throughput. We propose using wavelengths in a DWDM scheme as dedicated channels that bypass the routing lookup in a router. The future trend of telecommunications industry is, however, toward larger numbers of interlinked competing operator networks. This in turn means there is a lack of a unified control plane to allow current networks to dynamically provision optical paths. This paper will report on the concept of optical IP switching. This concept seeks to address optical control plane issues in disaggregated networks while providing a means to dynamically provision optical paths to cater for large data flows","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116860599","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: 6
Efficient OXC Monitoring Based on Time-Delay Recognition 基于时延识别的OXC有效监测
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248435
Zhengfeng Qian, Guo-wei Lu, Sykhoroslova Li
{"title":"Efficient OXC Monitoring Based on Time-Delay Recognition","authors":"Zhengfeng Qian, Guo-wei Lu, Sykhoroslova Li","doi":"10.1109/ICTON.2006.248435","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248435","url":null,"abstract":"Optical cross connects (OXCs) are critical components of all-optical networks. As OXC malfunction leads data loss or misrouting, surveillance of OXCs is essential to network reliability. A recent OXC supervisory scheme based on different time-delay recognition identifies the state of I/O connection through the OXC, including any possible effect of link failure or misrouting. For large-scale OXCs, requires excessively long delay fibers, which raises feasibility issues such as power amplification and length of surveillance period. This paper proposes a modified scheme for reducing the length of delay fibers without downgrading the performance","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132698227","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
A Novel Path-Protecting p-Cycle Heuristic Algorithm 一种新的路径保护p环启发式算法
2006 International Conference on Transparent Optical Networks Pub Date : 2006-11-20 DOI: 10.1109/ICTON.2006.248436
Feng Zhang, W. Zhong
{"title":"A Novel Path-Protecting p-Cycle Heuristic Algorithm","authors":"Feng Zhang, W. Zhong","doi":"10.1109/ICTON.2006.248436","DOIUrl":"https://doi.org/10.1109/ICTON.2006.248436","url":null,"abstract":"We propose a novel path-protecting p-cycle heuristic algorithm for survivable WDM network design. Numerical studies show that p-cycle based path protection for span and node failure recovery is capacity efficient and robust","PeriodicalId":208725,"journal":{"name":"2006 International Conference on Transparent Optical Networks","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133711114","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
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