Now showing items 1-7 of 7

    • A MAC protocol for Multi Frequency Physical Layer 

      Kumar, Rajnish; PalChaudhuri, Santashil; Saha, Amit (2003-01-23)
      Existing MAC protocols for wireless LAN systems assume that a particular node can operate on only one frequency and that most/all of the nodes operate on the same frequency. We propose a MAC protocol for use in an ad hoc ...
    • 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 ...
    • Power Mode Scheduling for Ad Hoc Network Routing 

      PalChaudhuri, Santashil (2002-04-27)
      An ad hoc network is a group of mobile wireless nodes that cooperatively form a network among themselves without any fixed infrastructure. Each node in the ad hoc network forwards packets for other nodes, to allow nodes ...
    • 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 ...
    • 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 ...