18-07-2012, 12:32 PM
Wireless Sensor Networks
WSN1.ppt (Size: 337 KB / Downloads: 114)
What are WSN?
Large number of heterogeneous Sensor devices spread over a large field.
Wireless sensing + Data Networking. Group of sensors linked by wireless media to perform distributed sensing tasks
Applications of WSN
Military, Environmental, Health (Scanning), Space, Exploration,
Vehicular Movement, Mechanical stress levels on attached objects etc.
Sensor Network and Nodes
Network Channels: User nodes or gateways and onward transmission to other network.
Sensor channels: Communicates among sensor nodes and targets.
Sensor Network has three types of Nodes
* Sensor nodes: Monitor immediate environment
* Target Nodes: Generates various stimuli for sensor nodes.
* User Nodes: Client and Administration of Sensor Networks.
Routing in WSN
They can be divided into two main categories
Address Centric: Finding shortest path between pairs of addressable end-nodes.
Data Centric : Finding routes from multiple sources to a single sink, allowing data aggregation.
WSN1.ppt (Size: 337 KB / Downloads: 114)
What are WSN?
Large number of heterogeneous Sensor devices spread over a large field.
Wireless sensing + Data Networking. Group of sensors linked by wireless media to perform distributed sensing tasks
Applications of WSN
Military, Environmental, Health (Scanning), Space, Exploration,
Vehicular Movement, Mechanical stress levels on attached objects etc.
Sensor Network and Nodes
Network Channels: User nodes or gateways and onward transmission to other network.
Sensor channels: Communicates among sensor nodes and targets.
Sensor Network has three types of Nodes
* Sensor nodes: Monitor immediate environment
* Target Nodes: Generates various stimuli for sensor nodes.
* User Nodes: Client and Administration of Sensor Networks.
Routing in WSN
They can be divided into two main categories
Address Centric: Finding shortest path between pairs of addressable end-nodes.
Data Centric : Finding routes from multiple sources to a single sink, allowing data aggregation.