Wireless Sensor Networks

1. Wireless Sensor Networks
G.Namratha (09331A0537)
B.Spandana (09331A0511)
Esteemed Guidance under B.Asha (09331A0519)
G.Suvarna Kumar Sir G.Bhavani (09331A0538)

2. ABSTRACT
Wireless Sensor Networks (WSNs) consist of small
sensing nodes with capabilities-computation and
wireless communications. There are several
characteristics of wireless sensor nodes that limit their
functionality. Due to the use of batteries Wireless
sensors often have limited energy. The total network
capacity is limited by the use of unsophisticated wireless
links that limit the range, reliability, and throughput of
communication between nodes . Providing access to the
system by proper authentication makes the system more
secure.

3. INTRODUCTION
 Wireless Sensor Networks
 Energy Minimization
 Advantages
 Applications

4. Existing System
 Base station .
 Energy optimization is not achieved.
 More prone to attacks.
 Usage of same key.
 Data transmissions are not reliable.

5. Proposed System
 Uses Hierarchal clustering.
 Energy Minimization.
 Secure Routing.
 Makes use of efficient Key distribution techniques.
 Data Transmissions between privileged users.
 Cost can be decreased.

6. Cluster Based Hierarchal Network
 Hierarchal Architecture
 Levels in the design
 Base Station
 Cluster Head
 Sensor Nodes
 Need for Clustering

7. Overview of System Design

8. Modules of the Project
1.Node Authentication
2. Cluster Head Authentication
3. Data transmissions
4.Functional Requirements
5.Non-Functional Requirements
6.Software and Hardware Requirements

9. Node Authentication
 Algorithm
 Determine its Cluster Head
 Request Message
 Received Message
 Implementation

10. Cluster Head Authentication
 Algorithm
 Time stamp
 Key Generation
 Encryption
 Block Cipher
 Cluster Head Selection

11. Data Transmissions
 Node to Node
 Node to its Cluster head
 Cluster Head to Cluster Head
 Cluster Head to Base Station
 Secure transmissions

12. Functional Requirements
 Accurately measuring the environment’s temperature,
light and humidity.
 Ability to cope with node failures.
 Sending the data to the base station.
 Access to authenticated users.
 Removal of malicious data entry.

13. Non-Functional Requirements
 Reliability
 Availability
 Security
 Maintainability
 Portability
 Performance

14. Software Requirements
• Language : PHP
• Front end : Html,CSS
• Back end : PHP-MYSQL
• Operating System : Any Platform
Hardware Requirements
• Processor : Pentium-4
• Speed : 3GHz
• Ram : 1 GB
• Hard Disk : 80 GB

15. CONCLUSION