LTCP: A Layering Technique for Improving the Performance of TCP in Highspeed Networks

Publications

• Sumitha Bhandarkar, Saurabh Jain and A. L. Narasimha Reddy, "LTCP: Improving the Performance of TCP in Highspeed Networks", ACM SIGCOMM Computer Communication Review, Volume 36 , Issue 1 , January 2006. [pdf]
  
  
• Sumitha Bhandarkar, Saurabh Jain and A. L. Narasimha Reddy, "Improving TCP Performance in High Bandwidth High RTT Links Using Layered Congestion Control", in the proceedings of PFLDNet 2005 Workshop, February 2005. [pdf]
  Presentation Slides [ppt]   [pdf]
  
  The extended version of this paper is available as a tech report TAMU-ECE-2004-03   cached
  

Standards Work

• Sumitha Bhandarkar, Saurabh Jain and A. L. Narasimha Reddy, "LTCP: A Layering Technique for Improving the Performance of TCP in Highspeed Networks" draft-bhandarkar-ltcp-01.txt   [cached version]

Downloads

• Linux Kernel Patches (for kernel versions 2.4.25, 2.6.11.6, 2.6.15.4)
• NS-2 Patches (for ns version 2.26)

NOTE: Please check the LTCP page for more upto date patches and additional information about LTCP.

TCP-DCR : Making TCP Robust to Non-congestion Events

Publications

• Sumitha Bhandarkar and A. L. Narasimha Reddy, "TCP-DCR: Making TCP Robust to Non-Congestion Events", In the Proceedings of Networking 2004 conference, May 9-14 2004, Athens, Greece. [pdf]   [ps]   Presentation Slides [ppt]   [pdf]
  
  Also, presented as Student Poster at ACM SIGCOMM 2003 , August 25-29 2003, Karlsruhe, Germany. Abstract [doc]   [pdf]   Poster [ppt]   [pdf]
  
  The extended version of this paper is available as a tech report TAMU-ECE-2003-04   cached
  
  
• Sumitha Bhandarkar, Nauzad Sadry, A. L. Narasimha Reddy and Nitin Vaidya, "TCP-DCR: A Novel Protocol for Tolerating Wireless Channel Errors", To appear in IEEE Transactions on Mobile Computing . [pdf]    

Standards Work

• Sumitha Bhandarkar, A. L. Narasimha Reddy, Mark Allman and Ethan Blanton, "Improving the robustness of TCP to Non-Congestion Events", IETF Draft , work in progress, July 2006. draft-ietf-tcpm-tcp-dcr-07.txt   [cached draft-ietf-tcpm-tcp-dcr-05.txt]

Downloads

• NS-2 Code (for ns version 2.26)
  
  The code for simulating TCP-DCR on the ns-2 simulator can be downloaded from here. The tar.gz pkg contains (rather rudimentary) README files and example scripts. For additional info contact sumitha at tamu dot edu .
  
  
• Linux Kernel Patches (for kernel version 2.4.20)
  
  An integrated (web100 + TCP-DCR) patch for the linux kernel 2.4.20 is available upon request. Please send email to sumitha at tamu dot edu if you are interested.

Other Related Stuff

• Master's Degree : "Delayed Congestion Response Protocols"

  • Thesis Report [pdf]   [ps]
    
  • Defense Slides [ppt]
  
  

• Ph.D Degree : "Congestion Control Algorithms of TCP in Emerging Networks"

  • Prelims Presentation [ppt]
  • Defense Presentation [ppt]
  • Dissertation [pdf]
  
  
• Sumitha Bhandarkar and A. L. Narasimha Reddy, "Robustness to Packet Reordering in High-speed Networks", Currently Under Submission. [pdf]