Roop Singh Meena presented a seminar on wireless sensor networks. The presentation introduced WSNs, describing their architecture which includes sensors, sensor nodes, and a gateway. It also covered WSN characteristics, types including terrestrial, underwater and mobile, the protocol stack, common topologies like star and mesh, and applications in areas such as environment monitoring, healthcare, and industry. Challenges with WSNs were discussed along with security issues like passive and active attacks.

1. Presented by :
Roop Singh Meena
M.E.(Modular) CSE
,Spell-2
Roll no-191408
Wednesday, January 1, 20201
Seminar on
“Wireless Sensor Network”

2. OUTLINE
Wednesday, January 1, 20202
 Introduction
 Architecture
 Characteristics of WSN
 Types of WSN
 Protocol stack
 Types of topologies
 Applications
 Challenges
 Security issue
 References

3. Introduction of Wireless Sensor Network
Wednesday, January 1, 20203
 A Sensor network is group of small generally battery-
powered devices and wireless infrastructure that monitor
and record conditions in any number of environments.
 A Wireless Sensor Network(WSN) is a wireless network
that is designed using spatially distributed self –
governing devices that uses sensors for monitoring
physical or environmental conditions.
 Parameters monitor using Wireless Sensor Network are
temperature, pressure , humidity , direction of wind and
speed , illumination , intensity of vibration , intensity of
sound , pollutant level and vital body functions

4. Architecture of Wireless Sensor
Network
Wednesday, January 1, 20204
 Gateway
 Sensors
 Sensor Node

5. Architecture of Wireless Sensor Network
Wednesday, January 1, 20205
Reference[2]

6. Architecture Of Sensor Node
Wednesday, January 1, 20206
Main Components
 Sensing unit
 Power unit
 Communication Unit
 Processing Unit
Application Dependent Components
 Location Finding System
 Mobilizer
 Power Generator

7. Architecture Of sensor Node
Wednesday, January 1, 20207 Reference[2]

8. Wireless Sensor Network Characteristics
Wednesday, January 1, 20208
 Power Efficiency
 Fault Tolerance
 Mobility of Nodes
 Heterogeneity of Nodes
 Scalability
 Responsiveness
 Communication failures

9. Wireless Ad Hoc network and Sensor Network
Wednesday, January 1, 20209
Critria Wireless sensor
network
Wireless ad hoc
network
Sensing of events Use of sensors No sensing Ability
Size Very small Large
Power capacity Limited Larger
Cost Very Low Comparatively High
Density and
Redundancy
High Low
Node failure Unattended Attended Due to
battery Replacement
Memory and
Processing Power
Limited More
Data Movement Many node to
Gateway
One node to many
node
Transmission Range Small(3-30 metre) Large(10-50 metre)

10. Types of Wireless Sensor Network
Wednesday, January 1, 202010
Terrestrial WSN :
TWSN typically consist of hundreds to thousands of
inexpensive wireless sensor nodes deployed in a given
area, either in a pre-planned or in an ad-hoc manner
Underground WSN : UWSN consists of number of
sensor nodes buried underground or in a cave or mine
that are used to monitor underground conditions

11. Types of Wireless Sensor Network..
Wednesday, January 1, 202011
Underwater WSN : These consist of a several
sensor nodes and vehicles that are deployed
underwater
Multi-Media WSN : These have been proposed to
enable monitoring and tracking of events in the form
of
multimedia. Multi-media WSNs consist of a several
low cost sensor nodes equipped with cameras and
microphones. These sensor nodes usually
interconnect with each other over a wireless
connection for data
retrieval, process, correlation, and compression

12. Types of Wireless Sensor Network..
Wednesday, January 1, 202012
 Mobile WSN :MWSN consist of a no. of sensor
nodes that can move on their own and also interact
with the
physical environment. Mobile nodes have the ability to
sense, compute, and communicate like static nodes.
Mobile nodes also have the ability to reposition and
organize itself in the network

13. Protocol Stack for WSN
Wednesday, January 1, 202013
 Five layer of OSI
 Application Layer
 Transport layer
 Network layer
 Data Link layer
 Physical layer
 Cross Layer Plane
 Power Management Plane
 Mobility Management Plane
 Task management Plane

14. Protocol Stack for WSN
Wednesday, January 1, 202014

15. Types of topologies in Wireless Sensor
Network
Wednesday, January 1, 202015
 Star topology
 Mesh topology
 Tree topology

16. Wednesday, January 1, 202016 Reference[4]

17. Application Of Wireless Sensor Network
Wednesday, January 1, 202017
 Military Application
Battlefield Surveillance
Attach detection
Guiding intelligent missile
 Environment Application
Forest Fire Detection
Flood Detection
Air Pollution
Water Quality

18. Application Of Wireless Sensor Network
Wednesday, January 1, 202018
 Medical Application
Physiological Data Monitoring
Identifying allergies
Preventing Wrong Diagnosis
Monitoring patient Movement
 Industrial Application
Controlling industrial Plants
Dealing with data center issues

19. Application Of Wireless Sensor Network
Wednesday, January 1, 202019
 Home Application
Smart Home
Remote management
 Agricultural Application
Monitoring water tank level
Water pump control
Irrigation Automation

20. Wednesday, January 1, 202020
Reference[5]
Application of Wireless Sensor
Network

21. Wednesday, January 1, 202021
Reference[5]
Application of Wireless Sensor
Network

22. Challenges in WSN
Wednesday, January 1, 202022
 Real Time data processing
 Power management
 Network scale and time varying characteristics of
WSN
 Management at Distance

23. Wireless Sensor Network Security Issue
Wednesday, January 1, 202023
 In Wireless sensor network attack can be two types:
 Passive attack: These attacks are mainly against
data confidentiality. An attacker monitors unencrypted
traffic and looks for sensitive information that can be
used in other types of attacks. Passive attacks include
traffic analysis, monitoring communications,
decrypting weakly encrypted traffic, and capturing
authentication information.
 Active attack : active attacks are DoS, modification
of data, black hole, replay, sinkhole, spoofing,
flooding, jamming, overwhelm, wormhole, fabrication,
Hello flood, node subversion, lack of cooperation,
modification, node subversion, man-in-middle attack,
selective forwarding and false node.

24. References
Wednesday, January 1, 202024
1. Indu, S. D. (2014). Wireless sensor networks: Issues &
challenges. International Journal of Computer Science and Mobile
Computing, 3(6), 681-685.
2. Online tutorial [https://youtu.be/7h5Wwk_mheg][Accessed on
:26/12/2019]
3. Bavarva, Arjav & Patel, Nidhi & Kathiriya, Hiren. (2013). WIRELESS
SENSOR NETWORK USING ZIGBEE. International Journal of Research
in Engineering and Technology. 2. 1038-1042.
10.15623/ijret.2013.0206021.
4. Zafeiropoulos, Anastasios & Spanos, Dimitrios-Emmanuel & Arkoulis,
Stamatios & Konstantinou, Nikolaos & Mitrou, Nikolas. (2011). Data
Management in Sensor Networks Using Semantic Web Technologies.
5.https://www.researchgate.net/publication/256936126_Analysis_and_Desig
n_of_IEEE_80215_4_Networked_Control_Systems

25. Wednesday, January 1, 202025