2017 IEEE 18th International Conference on High Performance Switching and Routing (HPSR)最新文献

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Robustness of physical topologies of optical networks created by variants of Gabriel graphs 加布里埃尔图变体创建的光网络物理拓扑的鲁棒性

2017 IEEE 18th International Conference on High Performance Switching and Routing (HPSR) Pub Date : 2017-06-01 DOI: 10.1109/HPSR.2017.7968686

Danilo R. B. Araújo, C. J. A. B. Filho

引用次数: 2

Performance of slotted store-and-forward (sSnF) optical circuit-switched networks - a simulation study 开槽存储转发(sSnF)光电路交换网络性能的仿真研究

2017 IEEE 18th International Conference on High Performance Switching and Routing (HPSR) Pub Date : 2017-06-01 DOI: 10.1109/HPSR.2017.7968680

Xiao Lin, Weiqiang Sun, Weisheng Hu

{"title":"Performance of slotted store-and-forward (sSnF) optical circuit-switched networks - a simulation study","authors":"Xiao Lin, Weiqiang Sun, Weisheng Hu","doi":"10.1109/HPSR.2017.7968680","DOIUrl":"https://doi.org/10.1109/HPSR.2017.7968680","url":null,"abstract":"Increasing bulk data transfers have been overwhelming the Internet. To overcome this, optical circuit-switched (OCS) networks are equipped with assistive storage, so that bulk data that are delay tolerant can be temporarily stored at intermediate nodes and forwarded at later times. But, the use of storage greatly complicates the routing problem, since data storage must be incorporated into routing. This motivates us to simplify this issue by applying slotted operations for the network. Intuitively, the slotted network suffers from degraded network performance due to the inefficient utilization incurred by the slot constraint. However, our simulation shows that when the slot size equals to half the mean duration, the blocking probability is reduced from 0.076 to 8.5×10−5, and the number of network reconfigurations is reduced by a factor of 5, compared to the unslotted case. We reveal that in spite of the inefficient utilization, the slotted operations mitigate bandwidth fragmentation. This suggests in the slotted case, more bandwidth gaps on the links are available for accommodating other requests, and they are aligned with each other in time. Requests hence are delivered with less store-and-forward (SnF) operations being performed. Thus, when the number of SnF allowed for routing each request is limited (in order to reduce the computational complexity of routing), requests are more easily served in the slotted than in the unslotted cases. Our research provides clue for designing scalable slotted OCS networks with assistive storage.","PeriodicalId":169489,"journal":{"name":"2017 IEEE 18th International Conference on High Performance Switching and Routing (HPSR)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125155311","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 provisioning strategies in translucent Elastic Optical Networks with flexible regeneration and superchannel transmission 具有柔性再生和超信道传输的半透明弹性光网络的供应策略研究

2017 IEEE 18th International Conference on High Performance Switching and Routing (HPSR) Pub Date : 2017-06-01 DOI: 10.1109/HPSR.2017.7968693

J. Finochietto, M. Garrich, A. Bianco

{"title":"On provisioning strategies in translucent Elastic Optical Networks with flexible regeneration and superchannel transmission","authors":"J. Finochietto, M. Garrich, A. Bianco","doi":"10.1109/HPSR.2017.7968693","DOIUrl":"https://doi.org/10.1109/HPSR.2017.7968693","url":null,"abstract":"Elastic Optical Networks (EONs) can increase the efficiency of already deployed optical fibers thanks to transponders that adjust the modulation format, baud-rate and number of optical carriers to achieve the desired transmission rate, bandwidth and reach. Due to the high cost of these transponders, transparent end-to-end lightpaths are usually desired, which can require a large amount of spectrum when provisioned over long distances. In this paper, we consider the case of translucent lightpaths, which make use of flexible regeneration schemes to reduce the amount of required spectrum. We analyze the trade-off between the spectrum usage and the number of transponder devices. In particular, we propose a proactive approach to provision EONs that considers the spectrum availability. Thus, it is possible to explore the referred trade-off with a load-incremental perspective, which may be relevant for network operators. Results show how the proposed approach can increase the supported capacity in the network at the cost of additional transponder devices.","PeriodicalId":169489,"journal":{"name":"2017 IEEE 18th International Conference on High Performance Switching and Routing (HPSR)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130269778","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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