Accessing to data in WSNs
Résumé
Wireless sensor networks (WSNs) should be configured correctly according to the environmental requirements, to work efficiently. With the right tuned setup parameters, WSNs are able to respond to every sensing and monitoring need. Measurements and observations made with this technology in industrial, military, medical, environmental, and research fields used are increasing frequency. By their nature of WSN sensor nodes, they are incapable of computing, storing, and establishing long distance communications, which makes it difficult to reach measurement data. Today, wide area data portability for traditional WSNs is an important research issue being worked on. Rather than displaying the measurement data to the limited number of users, it is important to support a system which allows large-scale retrospective analysis of the queries to broad user audience. Both researchers and industrialists carried out many studies on this subject. The goal of this survey is to provide a comprehensive review of different data transfer techniques in WSN middleware