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Boundary detection in sensor networks for phenomenon classification

Boundary detection in sensor networks for phenomenon classification. GROUP MEMBERS : AKSHAY BALASUBRAMANIAN NANDAKUMAR P VENUGOPAL SATISH RAMASWAMI SALEM. INSTRUCTOR : Dr Pao-Lo Liu TA : Mr Saurav Bandyopadhyay. Presentation overview. Objective Optimization criterion

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Boundary detection in sensor networks for phenomenon classification

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  1. Boundary detection in sensor networks for phenomenon classification GROUP MEMBERS : AKSHAY BALASUBRAMANIAN NANDAKUMAR P VENUGOPAL SATISH RAMASWAMI SALEM INSTRUCTOR : Dr Pao-Lo Liu TA : Mr Saurav Bandyopadhyay

  2. Presentation overview • Objective • Optimization criterion • Where it can be used • Simulation tool and protocol used • Actual overview of Simulation • Results • Future Improvements • Questions

  3. OBJECTIVE • To identify whether a Target Sensor is a part of the edge • To identify the boundary of the Phenomenon being measured

  4. Optimization Criterion • Throughput in the Network layer • Routing overhead in the MAC layer Assumptions: General class of boundaries Mild regularity Achievable Performance

  5. Where it can be used? • Landmine detection • Contouring • Unit monitoring and surveillance

  6. Simulation tool and Protocol used • Choice of environment - GloMoSim • Choice of Protocol -AdHoc On Demand Vector Routing Protocol (AODV)

  7. What is GloMoSim • GloMoSim is a simulation environment for wirelesssystems. • Source Code is written primarily in C and uses the Parsec compiler to create executable. • Layer Models : Physical Data Link Network Transport Application

  8. Classification of routing Protocols • Proactive – When a packet needs to be forwarded, the route is already known. *Each node maintains routing information to all other nodes in the network. *When updates are made it is propagated throughout the network. • Reactive – Determine a route only when data has to be sent. each node *Nodes that are not selected in the path do not maintain routing information. *The route discovery process is initiated by the source node.

  9. What is AODV • It is a reactive type of routing protocol. • Packet types Used RREQ - broadcast route discovery message RREP - unicast message to validate a path RERR - Error message to inform nodes of link failure • Routing information stored at the nodes • When a route to a new destination is needed, the node broadcasts a RREQ to find a route to the destination • Routing table stores only active routes, unused routes are removed

  10. Protocol modifications • Novelty involved -Is it my packet? -Do I have to stay awake!! I am better of sleeping Power-off mode in MAC layer

  11. Results to Substantiate Claim • Throughput • Power Constraint

  12. Actual Overview of Simulation Red – Original Blue – Our Algorithm

  13. Power versus Time Red – Original Blue – Our Algorithm

  14. Scope for Improvement • Resilience to security threats and Attacks • Denial of Service • Packet flooding • Impersonation • Black hole problem

  15. QUESTIONS ?

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