WIRELESS SENSOR NETWORK

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WIRELESS SENSOR NETWORK
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TOPICS

• INTRODUCTION
• CLASSIFICATION
• CHARACTERISTICS
• APPLICATION
• RELATED WORK
• PROBLEM STATEMENT
• OBJECTIVES
• PHASES

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INTRODUCTION

• What is wireless sensor network?

Sensor node
Gateway
Base Station
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Introduction -

• WSN are used to collect data from the
  environment.
• They consists of large number of SENSOR NODES
  and one or more BASE STATIONS.
• The nodes in network are connected via Wireless
  communication channel.
• Each node has capability to sense the data ,
  process the data and send it to rest of the nodes
  or to Base Stations.

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STAR
RING
CLASSIFICATION
TREE
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• Star Topology
• Single hop to Gateway
• Gate way serves to communicate between nodes
• Node can not send data to each other directly
• Lowest Power consumption
• Easily scalable
• Not easily reliable as one point of failure
• No alternate communication paths

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• Ring Topology
• All node performs same function
• No leader node
• Single direction data lost
• Tree Topology
• Msg. transmit in branch of trees
• It checks leader node and their information

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FULLY CONNECTED
CLASSIFICATION
MESH
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• Fully Connected
• Additional nodes links increases
• Routing problem occurs
• Mesh Topology
• Multi Hopping system
• Nodes can communicate each other directly
• Highly Power consumption
• Increase latency

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Hybrid Topology

• Sensors are arrange in star around the routers
• Routers around themselves in mesh form
• Reliable ,low power consumption , many alternate
  communication paths

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Routing