Service requirements for actor-actor coordination through sensor nodes in wireless sensor actor networks

Wireless sensor actor networks are a new challenging type of network in which sensor and actor nodes must coordinate to achieve network goals. But in some situations actors cannot directly communicate with each other. The wide extent of environment, obstacles in the environment and bad communication conditions are some of the reasons. One solution is to exploit accessible sensor nodes to indirectly route packets between actors. To do so, sensor nodes must know the locations of actors because actors can move. In this paper we propose a minimal set of services that actors need to coordinate. The services are finding an actor, finding multiple actors, finding the nearest actor and finding n-nearest actors. The services are exemplified and further partly simulated.