Traffic Measurement and Analysis

Network Anomaly Detection

Peer-to-Peer Networks

Streaming Video Traffic Characterization

Streaming Multimedia Proxy Services

Mobile Communications

Real Time Systems

       Traffic Measurement and Analysis

• VMScope - A Virtual Multicast VPN Performance Monitor

Lee Breslau, Chris Chase, Nick Duffield, Bill Fenner, Yanhua Mao and Subhabrata Sen
Proceedings of ACM SIGCOMM Internet Network Management Wotkshop (INM'06), Pisa, Italy, September 2006. [ps.gz ][pdf]

• Enterprise Security: A Community of Interest Based Approach

Patrick McDaniel, Subhabrata Sen, Oliver Spatscheck, Jacobus Van der Merwe, Bill Aiello and Charles Kalmanek
Proceedings of Network and Distributed System Security Symposium (NDSS'06), San Diego, February 2006. [pdf]

• ACAS: Automated Construction of Application Signatures

Patrick Haffner, Subhabrata Sen, Oliver Spatscheck, and Dongmei Wang
Proceedings of ACM SIGCOMM Workshop on Mining Network Data (MineNet '05), Philadelphia, August 2005. [pdf]

• Analysis of Communities of Interest in Data Networks

William Aiello, Chuck Kalmanek, Patrick McDaniel, Subhabrata Sen, Oliver Spatscheck and Jacobus Van der Merwe
Proceedings of Passive and Active Measurments Workshop (PAM'05), Boston, MA, March 2005. [ps.gz][pdf]

• Analyzing the spatial quality of Internet streaming video

Amy Reibman, Subhabrata Sen and Jacobus van der Merwe.
Invited paper, To appear in Workshop on Video Processing and Quality Metrics for Consumer Electronics (VPQM), Scottsdale, AZ, January 2005. [pdf]

• Network Monitoring of Video Quality over IP

Amy Reibman, Subhabrata Sen and Jacobus van der Merwe.
Invited paper, To appear in Picture Coding Symposium, Special Session on Video over Networks, San Francisco ,CA, Dec. 2004. (Coming soon !)

• Class-of-Service Mapping for QoS: A statistical signature-based approach to IP traffic classification

Matthew Roughan, Subhabrata Sen, Oliver Spatscheck and Nick Duffield
Proceedings of ACM SIGCOMM Internet Measurement Conference (IMC '04), Taormina, Sicily, Italy, October 2004. [pdf]

• Accurate, Scalable In-network identification of P2P Traffic Using Application Signatures

Subhabrata Sen, Oliver Spatscheck, and Dongmei Wang
13th International World Wide Web Conference, New York City, 17-22 May 2004. [ps.gz ][pdf]

• P2P The Gorilla in the Cable
  Alexandre Gerber, Joseph Houle, Han Nguyen, Matthew Roughan and Subhabrata Sen
  National Cable & Telecommunications Association(NCTA) 2003 National Show, Chicago, IL, June 8-11, 2003.[ps.gz ][pdf ]

• Analyzing Peer-to-Peer Traffic Across Large Networks

Subhabrata Sen and Jia Wang
Proceedings of ACM SIGCOMM Internet Measurement Workshop, Marseilles, France, Nov. 2002. [ps.gz ] [pdf ]

• Streaming Video Traffic: Characterization and Network Impact

Jacobus van der Merwe, Subhabrata Sen and Charles Kalmanek
Proceedings of the Seventh International Web Content Caching and Distribution Workshop, Boulder, CO, Aug., 2002. [ ps.gz ]

       Network Anomaly Detection

• Online Identification of Hierarchical Heavy Hitters: Algorithms, Evaluation, and Application

Yin Zhang, Sumeet Singh, Subhabrata Sen, Nick Duffield and Carsten Lund
To appear in Proceedings of ACM SIGCOMM Internet Measurement Conference (IMC '04), Taormina, Sicily, Italy, October 2004. [pdf]

• Sketch-based Change Detection: Methods, Evaluation, and Applications

Balachander Krishnamurthy, Subhabrata Sen, Yin Zhang and Yan Chen
To appear in Proceedings of ACM SIGCOMM Internet Measurement Conference (IMC '03), Miami, Florida, USA, October 2003. [ps.gz ][pdf ]

       Peer-to-Peer Networks

• On Unbiased Sampling for Unstructured Peer-to-Peer Networks
  Daniel Stutzbach, Reza Rejaie, Nick Duffield, Subhabrata Sen, Walter Willinger
  Proceedings of ACM SIGCOMM/USENIX Internet Measurement Conference, Rio de Janeiro, Brazil, October 2006. [ps.gz ][pdf]

• Sampling Techniques for Large, Dynamics Graphs
  Daniel Stutzbach, Reza Rejaie, Nick Duffield, Subhabrata Sen, Walter Willinger
  Proceedings of IEEE Global Internet Symposium, , Barcelona, Spain, April 2006. [ps.gz ][pdf]

• Characterizing Unstructured Overlay Topologies in Modern P2P File-Sharing Systems
  Daniel Stutzbach, Reza Rejaie, Subhabrata Sen
  Proceedings of ACM SIGCOMM/USENIX Internet Measurement Conference, Berkeley,CA, October 2005. [ps.gz ][pdf]

• Accurate, Scalable In-network identification of P2P Traffic Using Application Signatures
  Subhabrata Sen, Oliver Spatscheck, and Dongmei Wang
  13th International World Wide Web Conference, New York City, 17-22 May 2004. [ps.gz ][pdf]

• P2P The Gorilla in the Cable
  Alexandre Gerber, Joseph Houle, Han Nguyen, Matthew Roughan and Subhabrata Sen
  National Cable & Telecommunications Association(NCTA) 2003 National Show, Chicago, IL, June 8-11, 2003.[ps.gz ][pdf ]

• Analyzing Peer-to-Peer Traffic Across Large Networks

Subhabrata Sen and Jia Wang
Proceedings of ACM SIGCOMM Internet Measurement Workshop, Marseilles, France, Nov. 2002. [ps.gz ] [pdf ]

       Streaming Video Traffic Characterization

• Network Monitoring of Video Quality over IP

Amy Reibman, Subhabrata Sen and Jacobus van der Merwe.
Invited paper, To appear in Picture Coding Symposium, Special Session on Video over Networks, San Francisco, CA, Dec. 2004. (Coming soon !)

• Streaming Video Traffic: Characterization and Network Impact

Jacobus van der Merwe, Subhabrata Sen and Charles Kalmanek
Proceedings of the Seventh International Web Content Caching and Distribution Workshop, Boulder, CO, Aug., 2002. [ ps.gz ]

       Streaming Multimedia Proxy Services

• Using Multicast for Streaming Videos across Wide Area Networks

Bing Wang, Subhabrata Sen, Micah Adler and Don Towsley
Proc. IEEE Globecom , San Francisco, Dec 2003. [pdf]

• Optimal Proxy Cache Allocation for Efficient Streaming Media Distribution

Bing Wang, Subhabrata Sen, Micah Adler and Don Towsley
Proc. IEEE Infocom , New York, 2002. [ ps.gz] [ pdf]

• Prefix Caching assisted Periodic Broadcast: Framework and Techniques to Support Streaming for Popular Videos

Yang Guo, Subhabrata Sen and Don Towsley
Proceedings of ICC, 2002. [ pdf ]
 
• Seamless Workload Adaptive Broadcast

Yang Guo, Lixin Gao, Don Towsley, and Subhabrata Sen
Proceedings of International Packetvideo Workshop , 2002. [ pdf ]
 
• Periodic Broadcast and Patching Services - Implementation, Measurement, and Analysis in an Internet Streaming Video Testbed

Michael K. Bradshaw, Bing Wang, Subhabrata Sen, Lixin Gao, Jim Kurose, Prashant Shenoy, and Don Towsley
Proceedings of the Ninth ACM Conference on Multimedia, Ottawa, Canada, October 2001.[ ps.gz]
Also appears as an extended abstract in Proc. ACM SIGMETRICS, Cambridge, MA, June 2001.[ ps.gz]
An extended version is available as UMass CMPSCI Technical Report 00-56. [ ps.gz]
 
• Techniques for Reducing Bandwidth Overheads of Interactivity in Patching

Bing Wang, Subhabrata Sen, Lixin Gao, and Don Towsley
Submitted for review.
 
• Frame-Based Periodic Broadcast and Fundamental Resource Tradeoffs

Subhabrata Sen, Lixin Gao, and Don Towsley
Proc. IEEE International Performance, Computing, and Communications Conference  (IPCCC 2001), April 2001. [ ps.gz]
A longer version is available as UMass CMPSCI Technical Report 99-78. [ ps.gz]
 
• A Smoothing Proxy Service for Variable-bit-rate Streaming Video

Jennifer Rexford, Subhabrata Sen, and Andrea Basso
Proc. IEEE Global Internet'99(Rio de Janeiro, Brazil, December 1999). [ ps.gz ]
 
• Optimal Patching Schemes for Efficient Multimedia Streaming

Subhabrata Sen, Lixin Gao, Jennifer Rexford, and Don Towsley
Proc. IEEE NOSSDAV'99(Basking Ridge, NJ, June 1999). [ ps.gz ]
A longer version is available as UMass CMPSCI Technical Report 99-22. [ ps.gz ]
 
• Proxy Prefix Caching for Multimedia Streams

Subhabrata Sen, Jennifer Rexford, and Don Towsley
Proc. IEEE Infocom'99(New York, NY, March 1999). [ ps.gz]
A longer version is available as UMass CMPSCI Technical Report 98-27.[ ps.gz]
Here are the presentation slides [Powerpoint].
 
• Optimal Multicast Smoothing of Streaming Video over an Internetwork

Subhabrata Sen, Don Towsley, Zhi-Li Zhang, and Jayanta Dey
Proc. IEEE Infocom'99,(New York, NY, March 1999). [ ps.gz ]
A longer version is available as UMass CMPSCI Technical Report 98-77. [ ps.gz ]
Here are the presentation slides [Powerpoint].
 
• CBR transmission of VBR stored video

Subhabrata Sen, Jayanta Dey, Jim Kurose, John Stankovic, and Don Towsley
SPIE Symposium on Voice Video and Data Communications(Dallas, TX, November 1997). [ ps.gz]
 
• Playback Restart In Interactive Streaming Video Applications

Jayanta Dey, Subhabrata Sen, Jim Kurose, Don Towsley, and Jim Salehi
IEEE Conference on Multimedia Computing and Systems(Ottawa, Canada, June 1997). [ ps.gz ]
 
• Online Smoothing of Live, Variable-Bit-Rate Video

Jennifer Rexford, Subhabrata Sen, Jayanta Dey, Wu-chi Feng, Jim Kurose, John Stankovic, and Don Towsley
Proc. IEEE NOSSDAV'97(St. Louis, MO, May 1997). [ ps.gz ]

       Mobile Communications

Broadcast on Demand: Efficient and Timely Dissemination of Data in Mobile Environments


Ping Xuan, Subhabrata Sen, Oscar Gonzalez, Jesus Fernandez, and Krithi Ramamritham
IEEE Real-Time Technology and Applications Symposium, pp. 38-48, Montreal, Canada, June 1997. [ ps.gz ]

       Real Time Systems

Using Windows NT for Real-Time Applications: Experimental Observations and Recommendations


Krithi Ramamritham, Chia Shen, Oscar Gonzalez, Subhabrata Sen, and Shridhar Shirgurkar
in Proc. the Fourth IEEE Real-Time Technology and Applications, Denver, CO, June 1998. [ ps.gz ]
 

Integrated Scheduling of Multimedia and Hard Real-Time Tasks


Hiroyuki Kaneko, John Stankovic, Subhabrata Sen, and Krithi Ramamritham
in Proc. 17th IEEE Real-Time Systems Symposium,pp. 206-217, Dec. 1996.
 

Incorporation of Multimedia Capabilities in Distributed Real-Time Applications


Oscar Gonzalez, Subhabrata Sen, Krithi Ramamritham, and John Stankovic
Workshop on Databases: Active and Real-time 1996 (Concepts meet Practice), in association with 5th International Conference on Information and Knowledge Management, pp. 6-11, Nov. 1996.[ ps.gz ]