Thesis Work

• Sensor Architecture - My thesis reseach is in the design of an adaptive cross-layer network architecture for sensor networks to enable multiscale communication and collaboration. I have developed adaptive protocols for routing, channel access and synchronization, as well as provide communication abstractions, as part of this architecture. These adaptive protocols optimize the energy-efficiency of the architecture by providing the service matching the requirements of the application. PhD Thesis, 2005.
  
  
• COMPASS - COllaborative Multiscale Processing and Architecture for SensorNetworkS
  The COMPASS project is developing a new sensor network architecture whose communications hierarchy is aligned with the information flow of its computations. In particular, the research involves developing (1) a multioverlay sensor network architecture that supports both multiscale and proximity communication and computation; (2) new multiscale sensor data representations based on wavelet transforms; and (3) network services for sychronization and localization of network nodes.

Other Work

• PRAN [Source code for FreeBSD/Linux OSes and DSR/AODV protocols available for download] - Ad hoc networks testbed with unmodified simulation model. PRAN (Physical Realization of Ad hoc Networks) is a user-level implementation of ad hoc routing protocol. It provides an environment to use the ns-2 logic of routing protocols for actual implemtation. There are small hooks in the kernel to pass packets to the ad hoc routing protocol running in the user level.
  
  
• Steady State Mobility Model [ns-2 implementation] - The random trip model is a generic mobility model that generalizes random waypoint and random walk to realistic scenarios. You can use it to give a realistic flavour to your simulations. It is implemented in ns-2 and can be used without license. The implementation performs perfect initialization, i.e. the mobility model has no transient phase.
  • Visitor, Ecole Polytechnique Federale de Lausanne, Summer 2004
  
  
• Network Element Architecture for Scalable Services - Method and Apparatus for Computing Priorities Between Conflicting Rules for Packet Flows. Christoph L. Schuba, Santashil PalChaudhuri, Raphael Rom, and Michael F. Speer. Patent application filed in the United States, March 3, 2003. [Related Article] published at IEEE Computer, April 2005.
  • Research Intern, Sun Network Technology Group, Summer 2002
  
  
• Ad Hoc City [ns-2 implementation and Mobility traces available for download] - Ad Hoc City is a multitier ad hoc network routing architecture for wide-area communication. The backbone of this architecture is composed of mobile fleets of buses, which cover a city in both time and space. It uses a few fixed base-stations. Thus high-bandwidth short range technology can be deployed using this architecture. We developed the architecture and C-DSR (Cellular-DSR) routing protocol to support it.
  
  
• Safari - Scalable ad hoc networking and services, leveraging the existing synergy with peer-to-peer networking research. To this end we developed Masai -- a realization of the architecture -- which employs topology aware, hierarchical addressing for the mobile hosts through a pro-active, self-organizing, network hierarchy that recursively groups nodes together. We developed a hybrid routing protocol that uses this hierarchy as well as performs on-demand discovery of routes.
  
  
• Power Mode Scheduling - Energy saving in low power ad hoc nodes. Masters Thesis, May 2002.
  
  
• Scaling OSPF Routers - Addressing OSPF load in IP/MPLS Network [Research Report]
  • Research Intern, Bell Labs Networking Research Lab, Summer 2001
  
  
• A Peer-to-Peer Model for Ubiquitous Broadband Connectivity Sharing - A Technical and business perspective into broadband bandwidth sharing. [white Paper], 2004.
  
  
• Multi-channel wireless protocol - A MAC protocol for muti frequency physical layer [Technical Report]
  
  
• CA-based Image Compression - Using Cellular Automata for image compression [Paper]
  
  
• SMARTE - Real-time shared memory architecture simulator. Bachelors Thesis, May 2000.