Designing a Novel SOA Architecture for Security and Surveillance WSNs with COTS

We consider the challenge of enhancing sensor networks for surveillance and global security with increased distributed data processing capabilities, including multi-sensor fusion, data aggregation or mining, and rule-based alert generation. We advocate a novel architecture that will enable the creation of more resilient and complex monitoring applications. We exemplify its benefits in a chemical accident scenario. The architecture introduces new processing nodes in the field and derives the requirements for the software they will run. We propose to consider the use of a service oriented architecture (SOA) to program and deploy the data processing applications. We analyze existing and on-going work within the Web Services community and conclude that it is possible to implement the architecture with an appropriate combination of COTS (commercial off-the-shelf software components). We conclude with our plans to move forward in this direction and validate the approach on a hardware and software testbed.