Enabling ubiquitous sensor networking over mobile networks through peer-to-peer overlay networking

This paper presents the concepts of ubiquitous sensor networking. It envisages the existence of numerous independent sensor networks. The networks gather information about physical phenomena and collaborate with wide area mobile networks to provide more accurate and more relevant information to end-users. It is proposed that the architecture of the sensor network gateway interacts with users on behalf of sensor networks and provides attributes based access and querying. The problems of service discovery, service provision and collaboration of sensor networks over mobile networks are addressed by utilization of peer-to-peer (P2P) concepts built on functionality provided by the JXTA middleware overlay on 2.5G/3G mobile networks. Each sensor network acts as one peer node and is represented by a gateway in a P2P network. The concept has been successfully evaluated in the implemented test bed.