Research

My broad research interests are in networking and distributed systems. In particular, I'm interested in research issues that span these two domains. I'm also interested in heterogeneous network integration, mobile and wireless networking, networking protocol design, network measurements, and operating systems.

• Thesis work: I'm working on "An Architecture for Performance and Availability Constrained Composition of Services across the Wide-Area Internet". Read more here...
• ICEBERG: Along with other graduate students, I worked on the development of the ICEBERG architecture. My (outdated) page on ICEBERG is here.
• Universal Inbox: The Universal Inbox is a metaphor for any-to-any communication in an integrated network. It provides extensible personal mobility and service mobility. I worked on this for my Master's thesis. Read more here...
• ICEBERG GSM Testbed: I worked with Sreedhar Mukkamalla and Jimmy Shih to integrate a GSM Base-Station with the Internet. This was a crucial part of the ICEBERG testbed. Read more here...

Publications and Presentations

• ``An Architecture for Highly Available Wide-Area Service Composition'', Bhaskaran Raman and Randy H. Katz, Computer Communications Journal, special issue on ``Recent Advances in Communication Networking'', May 2003.
  Paper draft: [pdf] [ps]
• ``Load Balancing and Stability Issues in Algorithms for Service Composition'', Bhaskaran Raman and Randy H. Katz, The 22nd Annual Joint Conference of the IEEE Computer and Communications Societies, IEEE INFOCOM, Apr 2003. [Acceptance rate: 21%].
  Paper draft: [pdf] [ps]
• ``Emulation-based Evaluation of an Architecture for Wide-Area Service Composition'', Bhaskaran Raman and Randy H. Katz, (To Appear), International Symposium on Performance Evaluation of Computer and Telecommunication Systems (SPECTS 2002), July 2002.
  Paper: [pdf] [ps]
• ``The SAHARA Model for Service Composition Across Multiple Providers'', Bhaskaran Raman, Sharad Agarwal, Yan Chen, Matthew Caesar, Weidong Cui, Per Johansson, Kevin Lai, Tal Lavian, Sridhar Machiraju, Z. Morley Mao, George Porter, Timothy Roscoe, Mukund Seshadri, Jimmy Shih, Keith Sklower, Lakshminarayanan Subramanian, Takashi Suzuki, Shelley Zhuang, Anthony D. Joseph, Randy H. Katz, Ion Stoica, Invited Paper, (To Appear), International Conference on Pervasive Computing (Pervasive 2002), Aug 2002.
  Paper © Springer-Verlag: [pdf] [ps]
• ``Arguments for Cross-Layer Optimizations in Bluetooth Scatternets'', Bhaskaran Raman, Pravin Bhagwat, and Srinivasan Seshan, Symposium on Applications and the Internet (SAINT'01), Jan 2001. [ps]
  Conference presentation: [ppt] [PDF]
• ``Universal Inbox: Providing Extensible Personal Mobility and Service Mobility in an Integrated Communication Network'', Bhaskaran Raman, Randy H. Katz, and Anthony D. Joseph, Workshop on Mobile Computing Systems and Applications (WMSCA'00), Dec 2000. [pdf] [ps] [ps.gz].
  Workshop presentation: [ppt] [pdf]
• ``A Framework for Highly Available Internet Services'', Bhaskaran Raman and Prof. Randy H. Katz, SIGCOMM'00 Student Poster Session, Aug 2000. [Poster: pdf] [Write-up: pdf].
• ``ICEBERG: An Internet-core Network Architecture for Integrated Communications'', Helen J. Wang, Bhaskaran Raman, Chen-nee Chuah, Rahul Biswas, Ramakrishna Gummadi, Barbara Hohlt, Xia Hong, Emre Kiciman, Zhuoqing Mao, Jimmy S. Shih, Lakshminarayanan Subramanian, Ben Y. Zhao, Anthony D. Joseph, and Randy H. Katz, IEEE Personal Communications, Aug 2000: Special Issue on IP-based Mobile Telecommunication Networks. [pdf]
• ``The ICEBERG Project: Defining the IP and Telecom Intersection'', Bhaskaran Raman, Helen J. Wang, Jimmy S. Shih, Anthony D. Joseph, and Randy H. Katz, IT Professional, Nov/Dec 1999. [pdf]
• ``Online Dynamic Reordering for Interactive Data Processing'', Vijayshankar Raman, Bhaskaran Raman, and Joseph M. Hellerstein, Proc. of the 25th International Conference on Very Large Databases (VLDB), September 1999. (Selected one of the best papers). [ps]

Theses

• ``An Architecture for Performance and Availability Constrained Service Composition in the Wide-Area Internet'', Bhaskaran Raman, PhD Thesis, Dec 2002.
  PhD dissertation [pdf.gz] [ps.gz]
  Dissertation talk [ps.gz]
• ``Personal Mobility in the ICEBERG Integrated Communication Network'', Bhaskaran Raman, Master's Thesis, EECS Department, U.C.Berkeley, May 1999. [ps]
  Technical report version: UCB/CSD-99-1048 [ps]
• ``A Portable User-Level Thread Package'', Bhaskaran Raman, B. Tech Project Report, May 1997.

Other Posters and Presentations

• ``The SAHARA Four-Layer Model; Case-Studies in Composition'', Presentation at the Winter SAHARA retreat, Jun 2002. [ppt]
• ``Service Encapsulation in ICEBERG'', Presentation at Ericsson, End of the ICEBERG Review, Sweden, Jun 2001. [ppt]
• ``Universal Inbox for Personal Mobility and Service Mobility'', Presentation at Ericsson, ICEBERG Project Review, Sweden, Aug 2000. [ppt]
• ``Walkthrough of ICEBERG V0.0 Release'', Presentation at the Endeavour Retreat, Jun 2000. [ppt]