Interoperability in Wireless Sensor Networks Based on IEEE 1451 Standard

Related Work

The broad diversity of WSN hardware systems (Beutel, 2010) and the increase of different data formats raise the complexity in metadata representation for interoperable WSN. In effect, to share data information across heterogeneous network deployments requires an effective common model to represent the messages based on standardized rules. To address these problems, recent efforts are concentrated in standardized wireless physical interfaces (Gutierrez, Callaway & Barrett, 2003) to communicate and to process the information effectively allowing syntactic and semantic rules to exchange and to access metadata with accuracy and assurance.

Different initiatives toward interoperable sensor networks have been proposed in the past, for example, based on the Open Geospatial Consortium (OGC) standards to enable WSN for exchange and re-use the information in Service oriented architectures (SOA) as in (Klopfer, 2005), to provide an unified formal model and framework for sensor networks as in (Gracanin, Eltoweissy, Wadaa & DaSilva, 2005), or using metadata elements and context rules to improve the network interoperability (Ballari, Wachowicz & Callejo, 2009). These proposals take in account a standardized Physical (PHY) and Medium Access Layer (MAC) related with low rate Personal Area Networks (IEEE Std. 802.15.4, 2006). Likewise, in the higher layers, as in application layer, sensor network schemes focus on a conceptual structures to describe and exchange ordered data information, using reusable syntactic metadata by including standard languages and meta-languages as XML (Bray, Paoli, Sperberg-McQueen, Maler & Yergeau, 2008) by enabling the exchange of structured information between different platforms, allowing compatibility to share information in a safe, easy and reliable arrangement.