Now showing items 1-7 of 7

    • An Architecture for Distributed Wavelet Analysis and Processing in Sensor Networks 

      Wagner, Raymond; Baraniuk, Richard G.; Du, Shu; Johnson, David B.; Cohen, Albert (2006-04-01)
      Distributed wavelet processing within sensor networks holds promise for reducing communication energy and wireless bandwidth usage at sensor nodes. Local collaboration among nodes de-correlates measurements, yielding a ...
    • Design and Performance of PRAN: A System for Physical Implementation ofAd Hoc Network Routing Protocols 

      Du, Shu; Johnson, David B.; PalChaudhuri, Santashil; Saha, Amit Kumar; To, Khoa (2005-02-28)
      Simulation and physical implementation are both valuable tools in evaluating ad hoc network routing protocols, but neither alone is sufficient. In this paper, we present the design and performance of PRAN, a new system for ...
    • Design of Adaptive Overlays for Multi-scale Communication in Sensor Networks 

      PalChaudhuri, Santashil; Kumar, Rajnish; Baraniuk, Richard G.; Johnson, David B. (2005-06-01)
      In wireless sensor networks, energy and communication bandwidth are precious resources. Traditionally, layering has been used as a design principle for network stacks; hence routing protocols assume no knowledge of the ...
    • Network Stack Architecture for Future Sensors 

      Johnson, David B.; Kumar, Rajnish; PalChaudhuri, Santashil; Ramachandran, Umakishore (2005-01-26)
      With wireless ad hoc sensor networks, there is simultaneously a need and an opportunity to optimize the protocol stack behavior to match the sensor-based applications. A general-purpose internet stack is neither appropriate ...
    • Probabilistic Clock Synchronization Service in Sensor Networks 

      Johnson, David B.; PalChaudhuri, Santashil; Saha, Amit (2003-04-16)
      Recent advances in technology have made low cost, low power wireless sensors a reality. Clock synchronization is an important service in any distributed system, including sensor network systems. Applications of clock ...
    • Routing Improvements using Directional Antennas in Mobile Ad hoc Networks 

      Johnson, David B.; Saha, Amit (2003-07-03)
      In this paper, we present the design and evaluation of two techniques for routing improvement using directional antennas in mobile ad-hoc networks. First, we use directional antennas to bridge network partitions by adaptively ...
    • Self-Organizing Hierarchical Routing for Scalable Ad Hoc Networking 

      Druschel, Peter; Du, Shu; Johnson, David B.; Khan, Muhammed; PalChaudhuri, Santashil; Post, Ansley; Riedi, Rudolf H.; Saha, Amit (2005-02-08)
      As wireless devices become more pervasive, mobile ad hoc networks are becoming increasingly important, motivating the development of highly scalable ad hoc networking techniques. In this paper, we present the design and ...