Assessing data quality by a cross-layer approach

Wireless sensor networks had a big diffusion in the last few decades and they are used in many application domains. Services built on them require to handle a big amount of data, and a fundamental requirement is their quality, highly affected by the security of the whole system. Some encryption techniques can be adopted, but it is also necessary to verify the reliability of nodes that sense, aggregate, transmit data and share keys. This paper proposes a methodology for assessing data quality. Built on a cross layer approach, our methodology exploits localization information.