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Part 1: Networks and System ArchitectureInternational audienceDigital television enables IP data delivery using various protocols. Hybrid television HbbTV enhances digital television with applications delivery. HBB-Next is an architecture which enhances HbbTV with additional features. However it does not specify IP data delivery despite it has access to both broadcast and broadband channel. This paper proposes architecture and protocols for IP data delivery in HBBNext. To achieve this goal we designed new node (Application Data Handler - ADH) in HBB-Next architecture and new communication protocols (Application Data Handler Control Protocol - ADHCP, and Hybrid Encapsulation Protocol - HEP) for data transmission. We created Stochastic Petri Net (SPN) model of designed protocols and implemented them in ns2 network simulator to verify our solution. Results of SPN model simulation and ns2 network simulation are discussed and HEP protocol is compared to existing encapsulation protocols used in DVB systems

TV watching dramatically changes with introduction of new technologies such as Internet-connected TVs, enriched digital broadcasting (DVB), on-demand content, additional programme information, mobile phones and tablets enabling multiscreen functions etc that offer added values to content consumers. In this paper we propose modular advanced TV platform and its enablers enhancing TV watching. They allow users to receive aside of EPG also additional information about broadcasted content, to be reminded of requested programme, to utilize recommendation and search features, thanks to multiscreen functionality to allow users to take watched content with them or transfer it onto another device. The modularity of the platform allows new features to be added in future.

In this paper, we describe laboratory deployment of HBB-Next featured environment. Based on existing standards of Hybrid Broadband Broadcast TV we deploy laboratory environment along with new applications enabling personalization of content and multimodal interface. The environment consists of three parts -DVB-T broadcasting and receiving testbed, broadcasting system used for enriching education process and front end HBB-Next system enabling personalization features and multimodal interface of hybrid television. Index Terms-HBB-Next, DVB-T, hybrid television, personalized content delivery, multimodal interface

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