This paper presents a new Service Discovery Protocol (SDP) suitable for Wireless Sensor Networks (WSN). The restrictions that
are imposed by ultra low-cost sensor and actuators devices (basic components of a WSN) are taken into account to reach a minimal
footprint solution.
The WSN communication model we use is based on the picoObject approach [1] which implements a lightweight middleware for WSN on top of standard object oriented middlewares using a small
set of interfaces. The proposed SDP uses also this set, so it supposes the minimal overhead for devices and communication
protocols, allowing, at the same time, the deployment of a valuable set of services.
This research is partly supported by FEDER and the Spanish Government (under grant TIN2005-08719) and by FEDER and the Regional
Government of Castilla-La Mancha (under grants PBC-05-0009-1 and PBI-05-0049).