Research

Interests

My research interests are in the general area of communication networks. The modeling and analysis of networks, and network architectures and algorithms are the general themes of my research. My primary focus for the last several years has been on optical networks, and more recently data center networks and cloud computing. Some of my current/recent topics of interest are:

  • Optical Networks
    • Fault localization
    • Multi-granular networking

  • Cloud Computing
    • Reliability as a Service (RaaS)

  • Datacenter Networks
    • Network architectures
    • Resource allocation algorithms

Current Grants

  • Design and provisioning for inter-datacenter mult-granular flexible optical networks. Funded by NSF for for the period 10/1/18 - 9/30/21. This project is in collaboration with Prof. Juzi Zhao of San Jose State University.

  • Resilience in next-generation intelligent optical networks (PI). Funded by NSF for for the period 9/1/18 - 8/31/21. This project is in collaboration with Prof. Hiroshi Hasegawa of Nagoya University and Prof. Masahiko Jinno of Kagawa University.

  • A server-network cooperative approach for data center energy optimization (co-PI, PI is my colleague Prof. Guru Venkataramani). Funded by NSF for for the period 9/1/17 - 8/31/20.

  • WDM-based ultra-scale data center networks: architectures and control algorithms (PI). Funded by NSF for for the period 10/1/16 - 9/31/19. This project is in collaboration with Prof. Eytan Modiano of MIT.

Recently Completed Projects

  • Cost-effective and scalable architectures for multi-granular optical networks (PI). Funded by NSF for for the period 4/1/14 - 3/31/18. This project is in collaboration with Prof. Hiroshi Hasegawa and Ken-ichi Sato of Nagoya University.

  • Reliability as a Service (RaaS) in cloud computing (co-PI with Tian Lan (PI) and Howie Huang of GWU). Funded by NSF for the period 9/1/2013 - 8/31/2016.

  • Integrating mesh networking into the design of a smart healthcare logistics system,� Funded by LMI for the period Oct. 2015 - Sep. 2016, $50, 000, co-PI (with E. Shittu (PI) of GWU).

  • WIDER: Planning:  GW Reform and Advancement of STEM-education Practices (GRASP) (co-PI with several faculty at GW, PI: R. Simha). Funded by NSF for the period 9/1/13 - 8/30/15.

  • Holistic and Integrated Design of Layered Optical Networks (in collaboration with M. Brandt-Pearce of Univ. of Virginia). Funded by NSF for the period 9/15/2009 - 9/14/2013.

  • Cross-layer design and management of translucent optical networks (in collaboration with M. Brandt-Pearce of Univ. of Virginia). Funded by NSF for the period 9/1/2005 - 8/31/2009.