Abstract: In the Internet of things, the service may be provided by any nodes together, and the traditional best effort communication service can not guarantee quality of service(QoS). This paper established an active services Overlay rou- ting logic topology structure, and made a model of the service routing problem for Internet of things. On this basis, this paper proposed an active Overlay QoS service routing optimization algorithm based on Agent and ACO, which was im- proved with mobile Agent and QoS guaranteed service path selection. It is proved theoretically that the algorithm is cor- rect and convergent. And the actual performance of this algorithm was tested and compared by simulation experiments.

Key words: Internet of things, Service routing, Ant colony optimization, Active Overlay, QoS