Transcript Class Presentation Slides

Fault Tolerant Algorithm for Multi Hop Wireless Sensor Networks
• Features
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Rerouting capability on failure
Fault Tolerance through hardware redundancy
Isolation and self-recovery
Supports mobile sensor networks
Deployment of data mule to fetch/bridge isolated nodes.
• Built using Contiki OS and LNPD
• Used Reliable Unicast protocol in Rime communication stack of
Contiki to mote-mote communicate
• Used periodic broadcast for dynamic ad-hoc network formation.
• LNPD is used for directing RCX data mule to bridge nodes
• Used serial communication from mote to PC for instructing RCX
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Open Issues and Improvements
• Implementing the multi coordinator network
• Capability to place nodes using RCX
• Adding zigbee functionality to the rover
•Investigate feasibility of implementation using
TCP/IP stack in Contiki