Information retrieval is an essential activity for extraction of information from unstructured data. This data uses simpler data model rather than traditional column database which is based on Boolean and Vector space model. There is need to focus on process like information gathering, observation and data encryption process for communication among sensor nodes. These sensor nodes play an important role in Wireless Sensor Network (WSN). Wireless Sensor Network maintains cluster based infrastructure which is formed by group of sensor nodes. These nodes are capable of performing some processing and communicating with other connected nodes in the network. This paper presents brief introduction of Wireless Sensor Network and highlights its kinds; categorized based on environmental factors. It also focuses on WSN architecture with the help of OSI Model with limitations. Further this attempt also incorporates fundamental concepts of information retrieval with WSN into an account.

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Wireless Sensor Network Terrestrial Wsn Underground Wsn Underwater Wsn Multimedia Wsn Mobile Wsn Information Retrieval