15 Hits in 5.4 sec

Grid-Controlled Lightpaths for High Performance Grid Applications

Raouf Boutaba, Wojciech Golab, Youssef Iraqi, Tianshu Li, Bill St. Arnaud
2003 Journal of Grid Computing  
However, resource management in optical domains is traditionally very rigid and cannot successfully meet the requirements of Grid applications, such as flexible provisioning and configuration.  ...  Grid applications call for high performance networking support. One attractive solution is to deploy Grids over optical networks.  ...  Acknowledgement The following persons are hereby acknowledged in alphabetical order for their contribution to the development of the lightpath management system: Shivani Aggarwal, Bassam Aoun, Mohamed  ... 
doi:10.1023/b:grid.0000037552.74350.50 fatcat:hc5pcusz5behhj3mwzcbexi63q

The Role of ESLEA in the development of eVLBI [article]

R. E. Spencer, R. Hughes-Jones, M. Strong, S. Casey, A. Rushton, P. Burgess, S. Kershaw, C. Greenwood
2009 arXiv   pre-print
The ESLEA project (Exploitation of Switched Lightpaths for E-science Applications) has played a major role in the development of eVLBI. We outline this development in this paper.  ...  The internet has been used for data transfer in radio astronomy ever since its inception; however it is only recently that network bandwidth capability means that the internet becomes competitive with  ...  Acknowledgements The authors would like to thank Arpad Szomoru and the staff at JIVE and at EVN observatories for their patience, forbearance and invaluable efforts in making eVLBI a reality.  ... 
arXiv:0910.1726v1 fatcat:qmtnfeetu5h4bcanhskzrabofa

Dynamic photonic lightpaths in the StarPlane network

Paola Grosso, Damien Marchal, Jason Maassen, Eric Bernier, Li Xu, Cees de Laat
2009 Future generations computer systems  
We present here some preliminary results obtained with few selected Grid applications that make use of StarPlane.  ...  The StarPlane project enables users to dynamically control network photonic paths.  ...  Acknowledgments We wish to thank SURFnet for their continuous support, in particular Roeland Nuijts, Bram Peeters and Antoon Prins. We also thank Nico Kruithof and the rest of the SCARIe project.  ... 
doi:10.1016/j.future.2008.07.008 fatcat:ng2tsghjizhjhhessmndngojmq


Tom DeFanti, Cees de Laat, Joe Mambretti, Kees Neggers, Bill St. Arnaud
2003 Communications of the ACM  
However, it does require dynamic path provisioning, because most of the applications require the gathering and utilization of resources at several sites.  ...  offer control of lightpaths, their characteristics, and traffic behavior to the application level.  ... 
doi:10.1145/948383.948407 fatcat:yexd5ad745cwzjxuywuee7nz2m

Continuity-based resilient communication

Piotr Cholda, Anders Mykkeltveit, Bjarne E. Helvik, Andrzej Jajszczyk
2009 2009 7th International Workshop on Design of Reliable Communication Networks  
The justification for this approach and types of services where continuity is relevant are given.  ...  The paper advocates that in some communication service providing settings, it is more appropriate to focus on the continuity of a connection as the prime reliability attribute for defining requirements  ...  First, there are many connections with very high level of QoS requirements, preventing even short recovery, not mentioning a repair, as some grid-based applications in particle physics or radio astronomy  ... 
doi:10.1109/drcn.2009.5339987 fatcat:edv3qi2vsvdzrcm4xlffycvrrq

Progress in optical networking

P. Green
2001 IEEE Communications Magazine  
The point of departure is an assumed future twolevel structure in which the transport is by means of steadily growing interconnected all-optical islands of transparency, while the remainder of the communication  ...  Issues that remain center on increasing the number of channels and reducing the technology costs.  ...  For WDM service, the OADM is a 2 x 2 degenerate form of the N x N OXC that extracts and reinserts certain lightpaths for local use and expresses the others through.  ... 
doi:10.1109/35.894377 fatcat:3mwknaqkpzh7nle3c5v675gsxq

Towards market-oriented Clouds

Maurice Gagnaire, Pascale Vicat-Blanc Primet, Dimitra Simeonidou
2010 Annales des télécommunications  
Applications are ranging from distant medical diagnostic, collaborative image processing, scientific computation, financial operations, and industrial processes to radio astronomy already financially benefiting  ...  This evolution has motivated the emergence of numerous start-ups and companies specialized in service provisioning with an expected market size by 2011 around $95 billion in business and productivity applications  ...  The efficiency of ARC for Cloud environment is today confirmed by its wide deployment in multiple countries in Europe for a large variety of applications, from medical diagnostics to high-energy physics  ... 
doi:10.1007/s12243-010-0216-9 fatcat:5uwccbm5dbbwde6nzpjbqekjre

Report of the Third Global Experimentation for Future Internet (GEFI 2018) Workshop [article]

Mark Berman, Timur Friedman, Abhimanyu Gosain, Kate Keahey, Rick McGeer, Ingrid Moerman, Akihiro Nakao, Lucas Nussbaum, Kristin Rauschenbach, Violet Syrotiuk, Malathi Veeraraghavan, Naoaki Yamanaka
2019 arXiv   pre-print
Major topic areas included: softwareization and virtualization of radios and networks; testbed support for networking experiments; EdgeNet; a federated testbed of elastic optical networks; and reproducibility  ...  identification of strategies for effective use of open-source software and hardware platforms in future research infrastructure.  ...  NSI 2.0 is an East West protocol for dynamic multi-domain L2 provisioning that can also be used for dynamic L1 lightpath provisioning, and is being implemented in a number of production R&E networks and  ... 
arXiv:1901.02929v1 fatcat:nyzqaop4tjfo3djh4zmpakrepa

Instant Handoffs for Wireless Infrastructure Meshed Networks

Alexander A. Kist
2008 2008 Australasian Telecommunication Networks and Applications Conference  
Using Multi-Gigabit Networks to Transform Radio Astronomy Shaun Amy; CSIRO, Australia Science (particularly astronomy and particle physics) is well positioned to benefit from recent advances in global  ...  Teal; Victoria University of Wellington, New Zealand Cognitive Radio (CR) improves utilization of the overall radio spectrum through dynamic adaptation to local spectrum availability.  ... 
doi:10.1109/atnac.2008.4783338 fatcat:5vdigbtf5nfo7ifyeepevnth54

Prospects for a Future JANET

David Salmon
2009 Proceedings of The 8th International e-VLBI Workshop — PoS(EXPReS09)   unpublished
A brief overview of JANET and its transmission services is provided, noting those of particular relevance to Radio Astronomy and eVLBI.  ...  JANET Aurora, a dark-fibre facility supporting photonics and optical systems research is presented, leading to a view of technology options and potential new services which may be seen in the JANET network  ...  One of the major areas for examination will be optical transmission and possibilities for greater dynamism in services provision which may be possible with optical switching technologies such as Reconfigurable  ... 
doi:10.22323/1.082.0048 fatcat:4enqcowh3ngg7dw6ihdvnqzaim

A Survey of Big Data Machine Learning Applications Optimization in Cloud Data Centers and Networks [article]

Sanaa Hamid Mohamed, Taisir E.H. El-Gorashi, Jaafar M.H. Elmirghani
2019 arXiv   pre-print
The MapReduce programming model and its widely-used open-source platform; Hadoop, are enabling the development of a large number of cloud-based services and big data applications.  ...  In this survey, we present a summary of the characteristics of various big data programming models and applications and provide a review of cloud computing infrastructures, and related technologies such  ...  All data are provided in full in the results section of this paper.  ... 
arXiv:1910.00731v1 fatcat:kvi3br4iwzg3bi7fifpgyly7m4

Toxicity Analysis and Cry Gene Profiling of Bacillus Thuringiensis Isolated from Western Ghats of Tamil Nadu State, India

A. Ramalakshmi, P. Annakodi, V. Udayasurian, V. Balasubramani
2018 Proceedings of the Indian National Science Academy  
In fact, there were methods of storing like Quipu of Incas and tools for calculating like Chinese counting rods.  ...  There are various evidences of calculation as an ancient activity [Tedre, 2014] that dates back to Babylonian days used for varieties of navigational, astronomical and other day-to-day needs.  ...  Service chaining is dynamic and hence a new service can be provisioned just by aligning the VMs in accordance with the requirements of the new service and this leads to much faster service delivery.  ... 
doi:10.16943/ptinsa/2018/49413 fatcat:2w6rohpbava5zh6m26tsiz7qky

3. LYMAN Technical Description

1988 Publications Astronomical Society of Australia  
The LYMAN Observatory payload is mounted on a service module which which offers pointing, power and telemetry and which has substantial commonality with the SOHO concept.  ...  It is designed to offer an effective collecting area of greater than 10 cm2 over a limited field of view with a spectral resolution on astronomical targets of 30000 in the prime ( λ900 - 1250 Å ) spectral  ...  This would provide a major resource for the Australian astronomy community.  ... 
doi:10.1017/s1323358000022396 fatcat:xziczmg5jfa33hqrhgddfunlw4

A Survey of Optical Carrier Generation Techniques for Terabit Capacity Elastic Optical Networks

Muhammad Imran, Prince M. Anandarajah, Aleksandra Kaszubowska-Anandarajah, Nicola Sambo, Luca Poti
2018 IEEE Communications Surveys and Tutorials  
Elastic optical networks (EON) have been proposed to meet the network capacity and dynamicity challenges. Hardware and software resource optimization and re-configurability are key enablers for EONs.  ...  In addition to transmission performance, the impact of such sources on the network performance and real-world deployment strategies with reference to cost, power consumption, and level of flexibility have  ...  These new services generate dynamic traffic and demand a high quality of service (QoS).  ... 
doi:10.1109/comst.2017.2775039 fatcat:tzeemf6khfaepcrybdwrzlac4i

A Calibration System for a Rayleigh Laser Guide Star Constellation & a Planet around a Giant Star

Christian Schwab
The second part of the thesis concerns the search for planets around a sample of nearby giant stars with the Doppler technique carried out at Lick Observatory"s CAT telescope.  ...  I present a study of reflective laser launch telescopes based on commercial optics, and compare this to the refractive design chosen as baseline for ARGOS.  ...  Several observational programs have been conducted since then, making use of a number of radio telescopes, amongst them the big radio dish at Arecibo, Puerto Rico, to filter the measurements of the telescope  ... 
doi:10.11588/heidok.00011042 fatcat:c6nldtigybhdtjqmqhs2r7ltty