Information Fusion in Wireless Sensar Network

摘要

A Wireless Sensor Network (Wsn) Is A Collection Of Nodes Organized Into A Co-Operative Network. These Constitute Part Of A Network, Which Consist Of Individual Nodes That Are Able To Interact With Their Environment By Sensing Or Controlling Physical Parameters; These Nodes Have To Collaborate In Order To Fulfill Their Tasks As, Usually, A Single Node Is Incapable Of Doing So; And They Use Wireless Communication To Enable This Communication. The Field Of Application Of Wsn Is Constrained By The Capacity To Instrument The Nodes With Sensors And By The Required Processing Of The Generated Information. Wsn Were Invented To Study, Control And Monitor Events And Phenomena. Some Of The Commonly Applied Sensors Used Are For Measuring Flow, Temperature, Humidity, Vibrations, Pressures, Brightness, Mechanical Stress, And Proximity. The Use Of Wsn Has Foreseen Big Changes In Data Gathering, Processing, And Dissemination For Different Environments And Specific Applications. Wireless Sensor Networks Are Gaining Importance Because Of Development In Miniaturized Sensors. Information Fusion Is One Of Important Problem In Wireless Sensor Networks, Where Data, Critical Images, Etc., Are Collected Form Sensor Nodes. To Have The Complete Idea Of Visual Would One Needs To Fuse The Information From Different Sensors, This Works Proposes An Agent Based Distributed Sensor Network (Adsn) To Form An Improved Infrastructure For Multi-Sensor Information Fusion. The Proposed Scheme Is Based On The Clustering Concept In Which Sensor Nodes Form The Clusters. Each Of The Cluster Has Cluster Head Node. The Fusing Request Will Be Generated By The User At The Sink Node By Using A Mobile Agent. The Mobile Agent Roams Different Active Sensor Nodes In Each Of The Clusters To Perform Information Fusion Based On Predetermined Signal Strength Finally, Once All The Relevant Nodes Have Been Visited Agent Transmits The Fused Information To The Sink Node.