Enabling end-to-end CoAP-based communications for the Web of Things

Web of Things (WoT) plays a crucial role for the convergence of the Internet of Things (IoT). Web technology offers efficient support for global communications and wide access to services and information. WebServices-enabled devices allow the usage of different existing Web technologies for the development of applications in a more scalable and flexible way. For this purpose, homogenous and seamless end-to-end communication needs to be enabled independently of concrete solutions or specific Web-clients. WoT offers CoAP as a lightweight WebServices-based protocol for IoT devices. The main challenge is that CoAP has not been completely integrated into the existing Web clients without the need of intermediate application servers, proxies or gateways for the deployment of a fully end-to-end paradigm between end-clients (e.g., Web-browsers) and end-nodes (e.g., Sensors/Actuators). This paper proposes a flexible and scalable embedded CoAP solution for Web applications that offers full integration with browsers and Web-clients, without the need of intermediate application servers/gateways, or proxies.