Research and Teaching

• Select publications | All publications
• The Autonomous Networks Research Group
• The ANRG Sensor Networks Bibliography
• Fall 2007 Class: EE/CS 652 - Wireless Sensor Networks.

 

Personal Links

• Biographical Sketch | Curriculum Vitae
• Contact Info
• Some News Items

(The following is a representative selection of my research. My CV has a more complete list of publications Please see disclaimers and copyright notices for all papers posted on this site.)

• Networking Wireless Sensors, Cambridge University Press, January 2006.

• Avinash Sridharan, Bhaskar Krishnamachari, "Maximizing network utilization with max-min fairness in wireless sensor networks", to appear in ACM/Kluwer Wireless Networks, 2008. (ANRG Working Paper 07-10-02).
  

• Kiran Yedavalli, Bhaskar Krishnamachari, "Sequence-Based Localization in Wireless Sensor Networks," IEEE Transactions on Mobile Computing, Vol. 7, no. 1, January 2008 (to appear).
  
  
• Amitabha Ghosh, Yi Wang, and Bhaskar Krishnamachari, "Efficient Distributed Topology Control in 3-Dimensional Wireless Networks," IEEE SECON 2007.
  
  
• Qing Zhao, Bhaskar Krishnamachari, Structure and Optimality of Myopic Sensing for Opportunistic Spectrum Access, Cognet Workshop, IEEE ICC 2007.
  
  
• Kiran Yedavalli, Bhaskar Krishnamachari, "Enhancement of the IEEE 802.15.4 MAC Protocol for Scalable Data Collection in Dense Sensor Networks", USC Computer Engineering Technical Report CENG-2006-14, November 2006.

• Marco Zuniga, Bhaskar Krishnamachari, "An Analysis of Unreliability and Asymmetry in Low-Power Wireless Links", ACM Transactions on Sensor Networks, Vol 3, No. 2, June 2007.
  • earlier conference version: "Analyzing the Transitional Region in Low Power Wireless Links", IEEE SECON 2004.
    
  
  
• Joon Ahn and Bhaskar Krishnamachari, "Modeling Search Costs in Wireless Sensor Networks", USC Computer Engineering Technical Report, CENG-2007-1.
  • related earlier work: "Optimizing Data Replication for Expanding Ring-based Queries in Wireless Sensor Networks," WiOpt, April 2006.
    
    
• Avinash Sridharan and Bhaskar Krishnamachari, "Maximizing Network Utilization with Max-Min Fairness in Wireless Sensor Networks", WiOpt 2007.

• Yi Wang, Shyam Kapadia, and Bhaskar Krishnamachari, "MobIGames: Mobile Interaction Games with Wireless Devices," USC Computer Engineering Technical Report CENG-2006-13, October 2006.
  
  
• Marco Zuniga, Chen Avin, and Bhaskar Krishnamachari, "Using Heterogeneity to Enhance Random Walk-based Queries," USC Computer Engineering Technical Report CENG-2006-8, August 2006.

• Chen Avin and Bhaskar Krishnamachari, "The Power of Choice in Random Walks: An Empirical Study," 9th ACM/IEEE International Symposium on Modeling, Analysis and Simulation of Wireless and Mobile Systems, (MSWiM), Malaga, Spain, October 2006. [Best Paper Award]

• Dongjin Son, Bhaskar Krishnamachari, John Heidemann, "Experimental Analysis of Concurrent Packet Transmissions in Low-Power Wireless Networks," ACM Sensys, November 2006.

• Hua Liu and Bhaskar Krishnamachari, "A Price-based Reliable Routing Game in Wireless Networks," Workshop on Game Theory for Networks (GameNets), Pisa, Italy, October 2006.

• Shyam Kapadia and Bhaskar Krishnamachari, "Comparative Analysis of Push-Pull Query Strategies for Wireless Sensor Networks," International Conference on Distributed Computing in Sensor Systems (DCOSS), June 2006.

• Joon Ahn and Bhaskar Krishnamachari, "Fundamental Scaling Laws for Energy-Efficient Storage and Querying in Wireless Sensor Networks", ACM MobiHoc, May 2006. [USC EE Dept. 2006 Best Paper Award]
  • Related report: Joon Ahn, Bhaskar Krishnamachari, Derivations of the Expected Energy Cost of Search and Replication in Wireless Sensor Networks, USC Computer Engineering Techncial report CENG-TR-2006-3.

• Pai-Han Huang, Bhaskar Krishnamachari, "Analysis of existing approaches and a new hybrid strategy for synchronization in sensor networks," EmNets, Cambridge, MA, May 2006.

• Shiou-Hung Chen, Urbashi Mitra, Bhaskar Krishnamachari, "Cooperative communication and routing over fading channels in wireless sensor network," IEEE International Conference on Wireless Networks,Communications, and Mobile Computing (WirelessCom), Maui, Hawaii, June 2005.

• Kiran Yedavalli, Bhaskar Krishnamachari, Sharmila Ravula, Bhaskar Srinivasan, "Ecolocation: A Sequence Based Technique for RF-only Localization in Wireless Sensor Networks," The Fourth International Conference on Information Processing in Sensor Networks (IPSN '05), Los Angeles, CA, April 2005

• Gang Lu, Narayanan Sadagopan, Bhaskar Krishnamachari, Ashish Goel, "Delay Efficient Sleep Scheduling in Wireless Sensor Networks," IEEE INFOCOM, Miami, FL, March 2005. [USC EE Dept. 2005 Best Paper Award]
  

• Karim Seada, Marco Zuniga, Ahmed Helmy, Bhaskar Krishnamachari, "Energy Efficient Forwarding Strategies for Geographic Routing in Wireless Sensor Networks," ACM Sensys 2004, November 2004.

• Sundeep Pattem, Bhaskar Krishnamachari, and Ramesh Govindan, "The Impact of Spatial Correlation on Routing with Compression in Wireless Sensor Networks," ACM/IEEE International Symposium on Information Processing in Sensor Networks (IPSN), Berkeley, CA, April 2004. [Best Paper Award]
  
  
• Ashish Goel, Sanatan Rai, and Bhaskar Krishnamachari, "Monotone Properties of Random Geometric Graphs Have Sharp Thresholds," Annals of Applied Probability, Vol. 15, No. 4, November 2005.
  
  
• Narayanan Sadagopan, Fan Bai, Bhaskar Krishnamachari, and Ahmed Helmy, "PATHS: Analysis of Path Duration Statistics and Their Impact on MANET Routing Protocols," ACM Mobihoc, Annapolis, MD, June 2003. [Also see this interesting follow-on study by researchers at UMD].
  
  
• Deepak Ganesan, Bhaskar Krishnamachari, Alec Woo, David Culler, Deborah Estrin and Stephen Wicker,"Complex Behavior at Scale: An Experimental Study of Low-Power Wireless Sensor Networks," UCLA CS Technical Report UCLA/CSD-TR 02-0013, 2002.
  
  
• Bhaskar Krishnamachari, Rung-Hung Gau, Stephen B. Wicker, and Zygmunt J. Haas, "Optimal Sequential Paging in Cellular Networks," in ACM Wireless Networks, Vol 10, No. 2, March 2004.