PIAX: Toward a Framework for Sensor Overlay Network

In this paper, requirements and technologies for realizing sensor overlay networks are introduced. Sensor overlay networks should provide distributed data fusion mechanism, i.e. in-network computing feature, for effective computing on distributed sensors. Sensor overlay networks should also have scalability, maintainability and sustainability. To treat such requirements, we have developed an open source framework called 'PIAX'. The overview of PIAX and its technologies to treat sensor overlay networks are described in this paper.