1. Wireless Sensor Networks
-Venkata anirudh addepalli

2. OUTLINE What is a WSN Components of a WSN Communication Architecture
Applications of WSN
Protocol Stack
Routing Protocols
Data Centric Routing and Aggregation
WSN Operating Systems
Conclusion

3. What is a WSN
A group of sensors deployed in a remote site that communicate using wireless technology with each other to pass the collected data to a end user.

4. Components of a WSN

5. Communication Architecture

6. Applications of WSN

7. Protocol Stack

8. Routing Protocols SPIN Directed Diffusion Rumor Routing, etc. LEACH
PEGASIS
SPIN
Directed Diffusion
Rumor Routing, etc.

9. Data Centric Routing and Aggregation
Interest dissemination is performed to assign sensing tasks to sensor nodes
Sinks broadcast the interest
Sensor nodes broadcast an advertisement for available data
Requires attribute-based naming
Users are more interested in querying the attribute of the phenomenon, rather than querying an individual node
E.g. the sensor nodes in the area where temperature is greater than 75 F

10. WSN Operating Systems
TinyOS
Contiki
MANTIS
BTnut
SOS
Nano-RK

11. Conclusion
WSNs possible today due to technological advancement in various domains
Internet of Things
Design Constraints need to be satisfied for realization of sensor networks
Tremendous research efforts being made in different layers of WSNs protocol stack

12. THANK YOU