Wireless sensor network (WSN)

Introduction to wireless sensor network

1. Wireless sensor networks(WSN)

2. Presented To: Dr Imran Presented By : Syed Sajid Ali Reg No: 11-MDTLC-0513 Class No: 37

3. Types of wireless networks 1 w-wan (GSM,3G,4G) 2 w- lan ( 802.11 “ wifi ”) 3 w-Man (802.16”wimax”) 4 w-pan ( bluetooth , zig b ,UWB)

4. WSN WSN consists of hundreds to millions small, inexpensive, low-power, distributed devices, which are capable of local processing and wireless communication. These small devices are known as nodes WE have two types of nodes Sensing node Sink node

5. WSNs commonly comprise of tens, hundreds or even thousands minimal effort, low power and multifunctional sensor nodes that are deployed in the sensor fields. The sensor fields are the area of our interest where we want to deploy our sensor network. The sensor fields may range from land, water, mountains, forests, environment, agriculture, tracking, military and home monitoring. These sensor nodes or motes (a sensor node with its complete architecture) monitor the environment, collect the data and then pass this data to the BS.

6. They are commonly used for monitoring of environment based on different parameters such as pressure ,temperature, direction speed etc

7. Parts of sensor nodes Computing : consist of microprocessor used for controlling senor and executives communication protocol. Communication: It consists of a short range radio which is used to communicate with neighboring nodes and the outside world

8. Sensing : It link node to outside world Power supply: Consist battery supply power to other parts

9. Application of (WSN) Wireless sensor network can be use for monitoring applications in military, medicine, agriculture, industrial, transportation, environmental and smart home monitoring.

10. Smart Home Monitoring Through wsn we can connect all the appliances of our home like electric lights, alarms, T.V etc. sensing of movements in any area/room can automatically turn-on the lights and it can also adjust the temperature of that room. Moreover, it also provides us remote monitoring of residence e.g. we can also control different electrical appliances by our cell-phone and similarly if the sensors sense some activity going on at our house then it can also send us an alarming message/e-mail to our cell-phone.

11. Application in military Enemy detection Enemy tracking Area monitoring

12. Environmental application Air Pollution Monitoring Wild-Fire/Forest-Fire Detection Water Quality Monitoring Snow-Level Monitoring

13. Challenges in WSN Ad hoc deployment Unattended operation Untethered Energy constrained nature Routing

14. AREA OF RESEARCH IN WSN New routing protocol Data management / agregation Target tracking Topology control Power issues Mac protocols Coverage and connectivity

15. We are working to improve the power efficiency by Clustering Cluster head selection Clustering: Dividing the task among the node and making group of node to perform that task Cluster head selection: selection of head in cluster so that it may can communicate with Bs(sink node) rather then cluster.

16. Fuzzy logic

17. Simulators for wireless sensor networks Ns2 Glomosim Matlab Opnet

18. Q..??