Benyuan Liu Assistant Professor Dept. of Computer Science University of Massachusetts Lowell Phone: (978) 934 2425 Fax: (978) Email: bliu at cs dot uml dot edu

Education

• Ph.D. and M.S. in Computer Science, University of Massachusetts, Amherst
• M.S. and M. Phil. in Physics, Yale University
• B.S. in Physics, University of Science and Technology of China (USTC)

Research Interests

• Mobile and Wireless Networks
• Wireless Sensor Networks
• Network Information Theory
• Network Simulation and Measurement

Teaching

• Spring 2008: co-organize CS 691RR: Cooperative Networking , and CS 691UN: Underwater Networking and Sensing
• Fall 2008, 2007, Fall 2006, Fall 2005, Fall 2004: Data Communications I
• Spring 2008, Spring 2007, Sring 2006, Spring 2005: Data Communications II
• Fall 2008: Analysis of Algorithms
• Spring 2004, Fall 2003: Computer Networks (City College of New York)
• Fall 2003: co-organize CMPSCI 791L: Sensor Networks

Selected Publications

• Strong Barrier Coverage of Wireless Sensor Networks
  Benyuan Liu, Olivier Dousse, Jie Wang, Anwar Saipulla
  ACM Mobihoc, 2008. [pdf]
  (acceptance ratio: 44 out of 300 submissions, 14.7%)

• Connectivity in Cooperative Wireless Ad Hoc Networks
  Liaoruo Wang, Benyuan Liu, Dennis Goeckel, Don Towsley, Cedric Westphal
  ACM Mobihoc, 2008. [pdf]
  (acceptance ratio: 44 out of 300 submissions, 14.7%)

• Data Gathering Capacity of Large Scale Multihop Wireless Networks
  Benyuan Liu, Don Towsley, Ananthram Swami
  to appear in IEEE IEEE International Conference on Mobile Ad-hoc and Sensor Systems (MASS), 2008. [pdf]
  (regular paper, overall acceptance ratio: 23.6%, extended and regular paper ratio: 12.4%)

• Capacity of a Wireless Ad Hoc Network with Infrastructure
  Benyuan Liu, Patrick Thiran, Don Towsley
  ACM Mobihoc, 2007. [pdf]
  (acceptance ratio: 27 out of 146 submissions, 18.5%)

• Throughput Optimization and Fair Bandwidth Allocation in Multi-hop Wireless LANs
  Qunfeng Dong, Suman Banerjee, Benyuan Liu
  IEEE Infocom, 2006.[pdf]
  (acceptance ratio: 252 out of >1040 submissions, 18%)

• On the Efficiency of Fluid Simulation of Networks
  Daniel R. Figueiredo, Benyuan Liu, Yang Guo, Jim Kurose, Don Towsley
  Computer Networks Journal, Volume 50, Issue 12, 2006. [pdf]
• Mobility Improves Coverage of Sensor Network
  Benyuan Liu, Peter Brass, Olivier Dousse, Philippe Nain, Don Towsley
  ACM MobiHoc, 2005. [pdf]
  (acceptance ratio: 40 out of 281 submissions, 14.2%)

• On TCP and self-similar Traffic
  Daniel R. Figueiredo, Benyuan Liu, Anja Feldmann, Vishal Misra, Don Towsley, Walter Willinger
  Performance Evaluation, Vol 61, 2005. [pdf]
• Properties of Random Direction Model
  Philippe Nain, Don Towsley, Benyuan Liu, Zhen Liu
  IEEE Infocom, 2005. [pdf]
  (acceptance ratio: 244 out of 1419 submissions, 17.2%)
• A study on the Coverage of Large-scale Sensor Networks
  Benyuan Liu, Don Towsley
  IEEE International Conference on Mobile Ad-hoc and Sensor Systems (MASS), 2004. [pdf]
  (acceptance ratio: 52 out of 207 submissions, 25.1%)

• Single-Hop Probing Asymptotics in Available Bandwidth Estimation: Sample-Path Analysis
  X. Liu, K. Ravindran, Benyuan Liu, and D. Loguinov
  ACM Internet Measurement Conference (IMC), 2004. [pdf]
  (acceptance ratio: 39 out of 157 submissions, 24.8%)
• Modeling Frame-level Errors in GSM Wireless Channels
  Ping Ji, Benyuan Liu, Don Towsley, Zihui Ge, Jim Kurose
  Performance Evaluation, Vol 55, 2004. [pdf]
• On the Coverage and Detectability of Wireless Sensor Networks
  Benyuan Liu, Don Towsley
  Proc. of WiOpt'03: Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks, extended abstract [pdf]
• On the Capacity of Hybrid Wireless Networks
  Benyuan Liu, Zhen Liu, Don Towsley
  IEEE Infocom, 2003. [pdf]
  (acceptance ratio: 224 out of 1078 submissions, 20.8%)
• On the Autocorrelation Structure of TCP Traffic
  Daniel R. Figueiredo, Benyuan Liu, Vishal Misra, Don Towsley
  Computer Networks Journal Special Issue on "Advances in Modeling and Engineering of Long-Range Dependent Traffic", 2002. [pdf]
  
• TCP-Cognizant Adaptive Forward Error Correction in Wireless Networks
  Benyuan Liu, Dennis L. Goeckel, Don Towsley
  IEEE Globecom (Global Internet Symposium), 2002. [pdf]
  (acceptance ratio: 28 out of 142 submissions, 19.7%)
• Modeling Frame-level Errors in GSM Wireless Channels
  Ping Ji, Benyuan Liu, Don Towsley and Jim Kurose
  IEEE Globecom, 2002 (Internet Performance Symposium)[pdf]
• A Study of Networks Simulation Efficiency: Fluid Simulation vs. Packet-level Simulation
  Benyuan Liu, Daniel R. Figueiredo, Yang Guo, Jim Kurose, Don Towsley
  IEEE Infocom 2001 . [pdf]
  (acceptance ratio: 192 out of 830 submissions, 23.1%)
• Fluid Simulation of Large Scale Networks: Issues and Tradeoffs
  Benyuan Liu, Yang Guo, Jim Kurose, Don Towsley, and Weibo Gong
  PDPTA'99 [pdf]
• On the specification of NS and other Known On-Off Sources
  Daniel R. Figueiredo, Benyuan Liu
  Computer Science Technical Report 00-25, University of Massachusetts [pdf]

Service

IEEE Infocom 2006, 2007, 2008, 2009

ICCCN 2006, 2007, 2008

International Performance Computing and Communications Conference (IPCCC) 2006

International Workshop on Resource Provisioning and Management in Sensor Networks (RPMSN05)

Second IEEE PerCom Workshop on Pervasive Wireless Networking (PWN06)