IEEE FELLOW
December 8, 2011
for contributions in algorithms, protocols, and architectures of optical networks
The department has published a feature article to highlight this distinction.
IEEE ONTC SecretaRy
December 6, 2011
RESEARCH SPOTLIGHT: FUTURE INTERNET DESIGN
November 8, 2011
NC State Part Of Grant To Design Blueprint For Future Internet
A feature article also appeared in the Technician, the NC State student paper:
Re-twining the Future Internet
SPOTLIGHT ON OPTICS HIGHLIGHTS OUR RESEARCH
September 27, 2011
"Fast ILP Decompositions for Ring RWA" (pdf)
co-authored by Emre Yetginer, Zeyu Liu, and George Rouskas, and published in the July 2011 issue of JOCN, has been highlighted in the "Spotlight on Optics"; see the full summary.
"Spotlight on Optics" highlights articles from OSA journals. This is the first ever article from the JOCN journal to be highlighted.
NEW COLLABORATIVE NSF GRANT: Network INNOVATION THROUGH CHOICE
August 29, 2011
Abstract:
Computer networks, in particular the Internet, represent essential infrastructure for business, government, military, and personal communication. Several recent trends in technology and network use have pushed the capabilities required of the Internet beyond what can be provided by the currently deployed infrastructure. To address these limitations, the network community has developed a variety of technologies to adapt the functionality of network protocols and services. A critical question that remains unanswered is how to integrate these technologies into an ecosystem that involves users, service providers, and developers in such a way that new ideas can be deployed and used in practice.
Market forces have had a drastic effect on the shape of services and applications at the edge of the network. Our research proposes a transformative shift in the design of networks that enables sustained innovation in the core of the network using economic principles. We believe that supporting choice is the key aspect of a network architecture that can adapt to emerging solutions for current and future challenges. Choice implies that users can select from alternatives that can be deployed dynamically into the network and reward those that address their needs. We use this interdependency between technological alternatives and economic incentives to create a competitive marketplace for innovative solutions that address current and future challenges in networking. Our proposed work describes fundamental research aimed at the design, development, and prototyping of aspects of a next-generation network architecture where such choices and competition drive innovation at all layers of the protocol stack.
The proposed network design is based on three tightly coupled principles. Our ChoiceNet system aims to (1) encourage alternatives to allow users to choose among a range of services, (2) let users vote with their wallet to reward superior and innovative services, (3) provides the mechanisms to stay informed on available alternatives and their performances. We propose a number of fundamental research problems that address the design of building blocks to provide alternatives in the network, the economic framework for incentives, the necessary monitoring and management components, and the prototyping, education, and outreach efforts. Overall, our work does not aim at reinventing technical solutions to networking problems, but at developing a comprehensive system where these solutions can be deployed and compete to allow the network to adapt to current and future challenges.
Intellectual Merit: Our project addresses one of the key problems in the current Internet – how to design a network that ensures long-term innovation inside the network core. The proposed research will provide solutions to fundamental questions on how to enable choice among different service alternatives, how to develop marketplace for incentive-based competition, and how to handle explicit control and management. The development of a prototype allows for realistic experimentation that includes community involvement and educational uses.
Broader Impact: Our project will contribute to enhancing the functionality and usability of the nextgeneration Internet, which will become an important piece of infrastructure. Our project also integrates research and education of graduate and undergraduate students at the participating organizations, where we will continue with our current involvement to integrate underrepresented minorities. Results from our work will be disseminated in the form of an open-source prototype and publications.
DEBUT IMPACT FACTOR FOR THE OSN JOURNAL
August 28, 2001
The OSN Journal and the optical networking community also mourn the loss of Prof. Fabio Neri who served as co-Editor-in-Chief of the Journal since its inception. Fabio, a Professor at Politecnico of Torino, Italy, passed away in April 2011 at the young age of 53. The journal owes its success in large part to his dedication and tireless efforts over the last six years, and Fabio would have been happy to know about the impressive first impact factor that the Journal has received. Among all who knew Fabio professionally and personally, he will remain highly regarded for his work, generous service to the research community, and his sharp wit. His colleagues and friends will remember him as a brilliant, honest, direct, generous, and fun-loving person, who wanted to live his life to the fullest. Fabio will surely be missed.
You may submit your work to the OSN Journal.
Published issues and articles in press are available from ScienceDirect.
4th IEEE DistiNGUISHED LECTURER TOUR
August 15-17 , 2011
The first meeting took place on August 15, 2011, at the University of Colombo.
The second meeting took place on August 16, 2011, at the Univeristy of Moratuwa.
The first two meetings were held in Colombo, and the topic of my seminar was: "Power-Aware and Computationally Efficient Optical Network Design." (pdf)
The third seminar was held on August 17, 2011, as a Keynote presentation at the ICIIS conference in Kandy, Sri Lanka, organized by the Faculty of Engineering of the University of Peradeniya. The topic of my presentation was: "Perspectives on Future Internet Design." (pdf)
NEW NSF GRANT on Optical Network Design
August 1, 2011
Abstract:
Optical networking forms the foundation of the global network infrastructure, hence the planning and design of optical networks is crucial to the operation and economics of the Internet and its ability to support critical and reliable communication services. This research project aims to increase greatly our ability to solve optimally a range of optical design problems. In particular, the project will develop compact formulations and solution approaches that can be applied efficiently to instances encountered in Internet-scale environments. The ultimate goal is to lower the barrier to entry in fully exploring the solution space and in implementing and deploying innovative designs. The solutions to be developed are "future-proof" with respect to advances in dense wavelength division multiplexing (DWDM) transmission technology, as the size of the corresponding problem formulations is independent of the number of wavelengths.
Specific outcomes include: (a) computationally efficient formulations for the routing and wavelength assignment (RWA) problem, a subproblem of many design problems; (b) scalable optimal solutions to a suite of network design problems (including traffic grooming, survivability, and impairment-aware routing) that can be applied to topologies encountered in practice; (c) investigation and characterization of limiting solutions and technology tradeoffs in the "large W" regime that is consistent with DWDM technology trends; (d) benchmarking of existing heuristics and development of new polynomial-time algorithms that leverage the structure of optimal solutions; and (e) a set of integrated community building, research collaboration, and technology transfer activities that engage a wide range of students, including underrepresented groups in computer science.
Broader Impact: The project will develop new capabilities for the design and operation of optical networks that form the backbone of the Internet infrastructure. The proposed framework with its emphasis on scaling optimal solutions to networks of realistic size will open new directions for network design by permitting extensive "what-if" analysis to explore the sensitivity of design decisions to forecast traffic demands, capital and operational cost assumptions, service price structures, etc. The research agenda has the potential enable a wide range of 21st century science, education, and commercial applications through the design of networks that are better optimized for user and application requirements and are less expensive to build and operate.
ICCCN 2011 A GREAT SUCCESS
July 31-August 4, 2011
The event, which marked the 20th anniversary of one of the leading conferences in the networking field, was an outstanding success. The main conference received a record 452 paper submissions to twelve tracks. The TPC generated more than 1330 reviews, and a record 134 papers were accepted for an acceptance rate of 29.6%. Including workshop submissions, more than 600 papers were submitted (another record) and the event was attended by more than 350 registered participants (also a record).
The conference booklet containing the mesages from the chairs, the TPC, and the conference and workshop program.
RESEARCH SPOTLIGHT: OPTICAL RING NETWORK DESIGN
June 28 , 2011

Model Finds Optimal Fiber Optic Network Connections 10,000 Times More Quickly
This press release reports on the findings of our article "Fast Exact ILP Decompositions for Ring RWA" published in the July 2011 issue of the Journal of Optical Communications and Networking. (pdf)
Our work has also been featured in national and international media, including:
Physics Inventions -- Science Daily -- R&D Mag -- PhysOrg.com -- My Tech Voice -- Space Daily -- Silo Breaker -- First Science News -- OptoIQ -- Softpedia -- Science 'n' Technology Updates -- Lab Spaces -- Red Orbit -- EurekAlert -- Heavy Reading -- Light Reading
A feature article also appeared in the Technician, the NC State student paper:
Making the high-speed connection
3rd IEEE DistiNGUISHED LECTURER TOUR
May 10-12 , 2011
The first meeting took place on May 10, 2011, hosted by the Huntsville, AL, IEEE Comsoc chapter, at the Lockheed Martin Corporation facility in Huntsville.
The second meeting took place on May 11, 2011, and was hosted by the Orlando, FL, IEEE Comsoc chapter.
The third meeting was held on May 12, 2011, at the Virtual Physics Lab of the University of West Indies at Mona, Jamaica, hosted by the local IEEE Comsoc chapter.
Zeyu Liu RECEIVES NCSU RESEARCH and Teaching Honors
April 20, 2011
Zeyu was also selected to present his research at the 6th Annual NC State Graduare Research Symposium and was honored in Recognition of Outstanding Research.
"Thank A TEACHER" HONOR
March 7, 2011
One of my Spring 2010 students anonymously provided these comments to thank me for my efforts and positive impact as a teacher:
“CSC 772 was the best course I took in my entire Masters program…You are very systematic and have a clear vision of your concepts which clearly shows in the way you structure your course and projects. There is no scope of ambiguity and I really appreciate that quality in you.
Your course was like a wholesome meal with all the needed ingredients – learning new concepts; projects in coding the research report and presentation. I thoroughly enjoyed it all. Plus, you are always willing to help and guide the students. Thank you for being such a great teacher!”
BOOK ON NEXT GENERATION INTERNET
January 2011
Next-Generation Internet: Architectures and Protocols, a new book co-edited by Byrav Ramamurthy, Krishna Sivalingam, and myself, published by Cambridge University Press is now available. (CSC news story)
You may order from Amazon.
INVITED SPEAKER AT IEEE ANTS 2010 SYMPOSIUM
December 17 , 2010
Invited presentation: "Architectural Support for Internet Evolution and Innovation" (pdf)
IEEE GLOBECOM 2010: OUTSTANDING SERVICE AWARD
December 9 , 2010
The symposium received a total of 148 submissions, a new record in GLOBECOM/ICC history. The TPC did an outstanding job, generating 3.75 reviews per paper. Accepted papers were organized in 10 oral and 3 poster sessions which were well attended.
The ONS co-chairs received an Outstanding Service Award at the conference Victory dinner on December 9, 2010. (photo)
2ND IEEE DistiNGUISHED LECTURER TOUR
October 6-8 , 2010
The first meeting took place on October 6, 2010, and was hosted by the Orlando, FL, IEEE Comsoc chapter.
The second meeting was hosted by the Tampa, FL, IEEE Comsoc chapter, and it was held at the Verizon Facility in Temple Terrace, on October 7, 2010.
The third meeting was held on October 8, 2010, at the Business and Engineering Complex of the University of Alabama at Birmingham, hosted by the local IEEE Comsoc chapter and the UAB IEEE student branch. (photo1)
IEEE DistiNGUISHED LECTURER TOUR
August 10-12, 2010
The first meeting took place on August 10, 2010, at DRS Technologies in Gaithersburg, Maryland, hosted by the Washington, DC, IEEE Comsoc chapter. (photo1) (photo2)
The second meeting was hosted by the Baltimore, Maryland, IEEE Comsoc chapter, and it was held at the National Electronics Museum on August 11, 2010.
The third meeting was held on August 12, 2010, at the Middletown Public Library, Middletown, New Jersey, hosted by the NJ Coast IEEE Comsoc chapter.
Anjing Wang DEFENDS PHD DISSERTATION
August 9, 2010
Anjing was one of the main architects of the SILO architecture, a meta-design framework within which the system design can change and evolve. He also led the deployment of SILO within the Integrated measurement framework (IMF) in GENI.
Anjing received a 2006 Outstanding Teaching Assistant award at NC State. He also served as an at-large officer of the Computer Science Graduate Student Association (CSC GSA) for two years, and was a representative of CSC GSA on the University GSA.
Anjing will join Ericsson, San Jose, CA, in August, 2010.
ICCCN 2011
July 29 , 2010
ICCCN 2011 marks the 20th anniversary of one of the leading conferences in the networking field. The conference will take place at the Sheraton Hotel and Resort, Maui, Hawaii, from August 1-4, 2011.
MOHAN IYER DEFENDS PHD DISSERTATION
June 25 , 2010
The contribution of Mohan's research is twofold: it develops a hierarchical network design framework for interconnecting cloud infrastructure distributed over geographically diverse locations, and it introduces substantial extensions to the SILO architecture to provide applications with bandwidth-on-demand services.
Mohan received a 2006 Outstanding Teaching Assistant Award at NC State. He was a research intern for Cisco Systems in the summers of 2008 and 2007; he was an intern for Sun Microsystems in the summer of 2006.
Mohan will join Oracle, San Jose CA, in August, 2010.
KEYNOTE SPEAKER AT INFORMS Telecom 2010 Conference
May 8 , 2010
Keynote presentation: "RWA in WDM Rings: Efficient Exact Formulations Based on Maximal Independent Sets" (pdf)
LISONG XU PROMOTED TO ASSOCIATE PROFESSOR WITH TENURE
March 29 , 2010
IEEE GLOBECOM 2010: ONS SYMPOSIUM
February 1 , 2010
The symposium received a total of 148 papers, which is a new record in GLOBECOM/ICC history.
Qian Lv DEFENDS PHD DISSERTATION
January 29, 2010
The contribution of Qian's research is twofold: it introduces a theoretical framework for reasoning about and pricing Internet tiered services, and presents a practical toolset for network providers to develop customized menus of service offerings.
IEEE DISTINGUISHED LECTURER
January 20 , 2010
GENI PROJECT: TOOLS FOR CROSS-LAYER EXPERIMENTATION
january 18 , 2010
Invited SPEAKER AT ACP 2009 CONFERENCE
November 2-6 , 2009
Invited presentation: "Dynamic Optical Networking via Overlay Control of Static Lightpaths" (pdf)
I also served as a judge for the best student paper award for Subcommittee 4: Network Architectures, Management and Applications.
On November 4, I visited Shanghai Jiao Tong University as a guest of Prof. Xinbing Wang. Invited presentation: "Architectural Support for Internet Evolution and Innovation" (pdf)
KEYNOTE SPEAKER AT NGI 2009 CONFERENCE
July 1-3 , 2009
Keynote presentation: "Net SILOS: A Network Architecture for Advanced Cross-Layer Experimentation" (pdf)
Zyad Dwekat DEFENDS PHD DISSERTATION
June 2 , 2009
The contribution of Zyad's research is a suite of efficient and worst-case fair packet scheduling algorithms for routers.
Zyad is a Network Engineer with Sprint-Nextel.
BOOK ON Internet Tiered Services
April 13, 2009
Internet Tiered Services: Theory, Economics, and Quality of Service, my new book published by Springer, is now available.
You may order from Amazon.
INVITED SPEAKER AT ONDM 2009 CONFERENCE
February 18-20, 2009
Invited talk: "ERONs: Dynamic Optical Networking via Overlay Control of Static Lightpaths" (pdf)
CLARIS CASTILLO RECEIVES NCSU HONORS FOR PhD DISSERTATION
September25, 2008
Claris' dissertation was also selected as the NCSU nominee to the Council of Graduate Schools (CGS) Dissertation award.
Since July 2008, Claris has been a Research Staff member at the IBM T.J. Watson Research Center.
Distinguished Invited SPEAKER AT IEEE ICCCN CONFERENCE
August 4, 2008
Invited presentation: "Net SILOs: Generalizing the Layered Network Architecture" (pdf)
BOOK ON TRAFFIC GROOMING
July 30, 2008
Traffic Grooming for Optical Networks: Foundations, Techniques and Frontiers, a new book co-edited by Rudra Dutta, Ahmed Kamal, and myself, published by Springer is now available.
You may order from Amazon.
SHRIKRISHNA KHARE DEFENDS MS THESIS
May 14 , 2008
For his thesis, Shrikrishna developed a Linux kernel implementation of both the WF2Q service discipline and a new, scalable, discipline, Tiered Service Fair Queueing (TSFQ). This work was funded by the NSF NeTS program.
In June 2008, Shrikrishna will join Sun Microsystems in San Jose, California.
KEYNOTE SPEAKER AT OON 2008 WORKSHOP
May 8 , 2008
Keynote presentation: "Hierarchical Traffic Grooming for Multi-Granular Optical Networks" (pdf)
CLARIS CASTILLO DEFENDS PHD DISSERTATION
April 28, 2008
The contribution of Claris' research is a suite of efficient scheduling algorithms for advance reservation and co-allocation of compute, storage, and network resources.
In July 2008, Claris will join the IBM T.J. Watson Center as a Research Staff member.
Claris was named a finalist for the Google 2007 Anita Borg Scholarship for Women in Computer Science. She also received a 2006 Outstanding Teaching Assistant award at NC State.
Claris was a co-op for Cisco Systems during the Fall 2007 semester, a research intern at IBM T.J. Watson Research Center during the summer of 2007, and a research intern for Intel in the summer of 2006.
DARPA PROJECT: EDGE-RECONFIGURABLE OPTICAL NETWORKS
April 7, 2008
MANOJ VELLALA DEFENDS MS THESIS
March 19, 2008
For his thesis, Manoj developed an ontology of networking services as well as a suite of algorithms for composing these services into per-flow stacks called "silos." This work was funded by the NSF FIND program.
After the end of the semester, Manoj will join Cisco Systems in San Jose, California.
INVITED SPEAKER AT ONDM 2008 CONFERENCE
March 12-14, 2008
Invited talk: "Net SILOs: An Architecture to Enable Software Defined Optics" (pdf)
Panel discussion: "Is Multilayer Optical Networking Feasible?" (pdf)
IEEE BROADNETS 2007 CONFERENCE
September 10-13 , 2007
We are looking forward to next year's event which will be held in London, UK.
2007 IBM FACULTY AWARD
August 17 , 2007
NSF CPATH-CB Project: COMPUTING ACROSS CURRICULA
July 12 , 2007
The primary focus of this project is to streamline pathways through which students receive an education that equips them with the computing tools necessary for them to serve as future computing leaders of society. Ultimately, the proposed activities are designed to make the computing education more relevant to the ever-changing needs of the computing workforce in the United States. (CSC news story)
For up-to-date information on events and activities please refer to the project website.
RUDRA DUTTA PROMOTED TO ASSOCIATE PROFESSOR WITH TENURE
July 1 , 2007
LISONG XU RECEIVES NSF CAREER AWARD
February 15 , 2007
New COURSE ON "Survivable networks"
January 10, 2007
NET silos PRoject
September 15, 2006
A paper describing the Net Silos architectural framework appeared in IEEE ICC 2007, and another paper outlining the software architecture will appear in IEEE ICCCN 2007.
Nikhil baradwaj receives nC STATE ms thesis award
August 3, 2006
Nikhil's Thesis was on "Traffic Quantization and Its Applications to QoS Routing". Two papers from his thesis will appear in IEEE INFOCOM 2007 and IEEE ICC 2007.
Nikhil is currently with MicroStrategy, McLean, Virginia.



