TOPICS INTRODUCTION CLASSIFICATION CHARACTERISTICS APPLICATION RELATED WORK PROBLEM STATEMENT OBJECTIVES PHASES

INTRODUCTION  What is wireless sensor network? Sensor node Gateway Base Station

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.

STAR RING TREE CLASSIFICATION

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

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

FULLY CONNECTED MESH CLASSIFICATION

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

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

Routing