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.
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
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.
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