A distributed architecture for discovery and access in the Internet of Things

A complete, though small-scale, end-to-end architecture for the Internet of Things (IoT) is demonstrated by means of a test-bed including: smart objects (both clients and servers) with limited capabilities and proxy devices which allow the latter to connect to a core network, where a peer-to-peer (P2P) overlay is set up and maintained for automatic discovery of resources and highly scalable access. The Constrained Application Protocol (CoAP) is used by smart objects to enable Machine-to-Machine (M2M) communications following a resource-oriented approach. Business logic and human interactions with the smart objects for aggregation and visualization, respectively, are also demonstrated, including Android mobile applications.