Angel Martin

Vicomtech · Digital TV and Multimedia Services Department

The growth of network traffic and the rise of new network applications having heterogeneous requirements are stressing the telecommunication infrastructure and pushing network management to undergo profound changes. Network management is becoming a core research area to push the network and its performance to the limits, as it aims at applying dyna...

Vehicles embed lots of sensors supporting driving and safety. Combined with connectivity, they bring new possibilities for Connected, Cooperative and Automated Mobility (CCAM) services that exploit local and global data for a wide understanding beyond the myopic view of local sensors. Internet of Things (IoT) messaging solutions are ideal for vehic...

5G led to a digital revolution for networks by leveraging virtualisation techniques to manage software-based network functions through provided standard interfaces, which have matured recently for cloud infrastructure that is widely employed across domains and sectors. This undiscovered potential to adequately respond to concurrent and specialised...

Cooperative Intelligent Transport Systems (C-ITS) create, share and process massive amounts of data which needs to be real-time managed to enable new cooperative and autonomous driving applications. Vehicle-to-Everything (V2X) communications facilitate information exchange among vehicles and infrastructures using various protocols. By providing com...

Cars capture and generate huge volumes of data in real-time, including the driving dynamics, the environment, and the driver and passengers' activities. With the proliferation of Connected and Automated Mobility (CAM) applications, the value of vehicle data is getting higher for the automotive industry as it is not limited to onboard systems and se...

The reliability and availability of network connectivity, which significantly varies with mobility, is crucial in Connected, Cooperative and Automated Mobility (CCAM). Handover and roaming are the most challenging situations in terms of connectivity of cellular networks, which require switching across cells of the same cellular network or between P...

Media services must ensure an enhanced user’s perceived quality during content playback to attract and retain audiences, especially while the streams are distributed remotely via networks. Thus, media streaming services rely heavily on good and predictable network performance when delivered to a large number of people. Furthermore, as the quality o...

Today's vehicles are increasingly embedded with computers and sensors which produce huge amount of data. The data are exploited for internal purposes and with the development of connected infrastructures and smart cities, the vehicles interact with each other as well as with road users generating other types of data. The access to these data and in...

Vehicles shipping sensors for onboard systems are gaining connectivity. This enables information sharing to realize a more comprehensive understanding of the environment. However, peer communication through public cellular networks brings multiple networking hurdles to address, needing in-network systems to relay communications and connect parties...

Cars capture and generate huge volumes of data in real-time about the driving dynamics, the environment, and the driver and passengers' activities. Due to the proliferation of cooperative, connected and automated mobility (CCAM), the value of data from vehicles is getting strategic, not just for the automotive industry, but also for many diverse st...

Cooperative perception represents an important technology to fulfil the higher automation levels of connected and automated mobility (CAM). In cooperative perception, the sensor data, either raw or processed, is shared among neighbour vehicles with the objective of enhancing or complementing the perception obtained by on-board sensors. The vehicle...

Network slicing is a promising technique used in the smart delivery of traffic and can satisfy the requirements of specific applications or systems based on the features of the 5G network. To this end, an appropriate slice needs to be selected for each data flow to efficiently transmit data for different applications and heterogeneous requirements....

Fifth-generation (5G) mobile networks aim to be qualified as the core connectivity infrastructures to address connected automated mobility (CAM), both from a technological and from a business perspective, for the higher automation levels defined by the automotive industry. Specifically, in some territories such as the European Union the cross-borde...

Owing to increasing consumption of video streams and demand for higher quality content and more advanced displays, future telecommunication networks are expected to out-perform current networks in terms of key performance indicators (KPIs). Currently, content delivery networks (CDNs) are used to enhance media availability and delivery performance a...

Beyond the advanced radio capabilities, 5G means a digital transformation, catalyzed by cloud technologies, making the networks agile and broader. However, high and quick dynamics in dense client cells consuming live broadcast contents can cause Quality of Experience (QoE) degradations. Here, inaccurate bandwidth assessment of media players drives...

HTTP Adaptive Streaming (HAS) offers media players the possibility to dynamically select the most appropriate bitrate according to the connectivity performance. A best-effort strategy to take instant decisions could dramatically damage the overall Quality of Experience (QoE) with re-buffering times, and potential image freezes along with quality fl...

The explosion in the variety and volume of video services makes bandwidth and latency performance of networks more critical to the user experience. The media industry's response, HTTP-based Adaptive Streaming technology, offers media players the possibility to dynamically select the most appropriate bitrate according to the connectivity performance...

Among the multiple uses of HDR video, live events can get a big benefit from HDR video, especially when it is recorded outdoors with uncontrolled light conditions. HDR technology can provide a better adaptation of cameras to rapidly changing light conditions such as scenes that combine bright sunny areas with dark shadows (football), balls that fly...

The burgeoning capabilities of Web browsers to exploit full-featured devices can turn the huge pool of social connected users into a powerful network of processing assets. HTML5 and JavaScript stacks support the deployment of social client-side processing infrastructure, while WebGL and WebCL fill the gap to gain full GPU and multi-CPU performance....

Current 4G networks are approaching the limits of what is possible with this generation of radio technology. Future 5G networks will be highly based on software, with the ultimate goal of being self-managed. Machine Learning is a key technology to reach the vision of a 5G self-managing network. This new paradigm will significantly impact on connect...

5G networks will require high data rates, high quality-of-service (QoS), and high energy efficiency in a package that can accommodate virtualized network functions and software-defined networks. Current energy efficient approaches for wireless networks were not designed for such high performance demands, meaning network resource allocation is often...

The quest to transform the television viewing experience into a digital media service is happening thanks to the addition of companion screens to the TV. Multi-device experiences become more intuitive and easier to use federating cooperative devices. They also bring new creative opportunities to schedule and distribute interactive content synchroni...

HbbTV takes advantage of the opportunity to expand the broadcast experience exploiting the common media content. However, the time to reach the audience in a different way has come. Aware of the privileged position of the TV in the living room, manufacturers and marketplace app developers have fostered their own bunch of solutions to integrate the...

In this paper we introduce a new platform to perform image processing algorithms over big data. The main stakeholders of media analysis are the social services which manage huge volumes of multimedia data. While social service providers have already a big resources pool of connected assets through the devices of the community, they are not exploiti...

3DTV can be considered as the biggest technical revolution in TV content creation since the black and white to color transition. However, the big commercial success of current TV market has been produced around the Smart TV concept. Smart TVs connect the TV set to the web and introduce the main home multimedia display in the app world, social netwo...

Digital home application market shifts just about every month. This means risk for developers struggling to adapt their applications to several platforms and marketplaces while changing how people experience and use their TVs, smartphones and tablets. New ubiquitous and context-aware experiences through interactive 3D applications on these devices...

Second screen services encourage TV audience to enjoy new forms of interaction engaging users around TV content as a main thread. This paper describes a standard-based solution for second screen services synchronised with the broadcast content. The user perceives an enhanced broadcast experience enriched with multimedia, textual and social Internet...

There is a growing gap between the multimedia production and the context centric multimedia services. The main problem is the under-exploitation of the content creation design. The idea is to support dynamic content generation adapted to the user or display profile. Our work is an implementation of a web platform for automatic generation of multime...

There is a growing gap between the multimedia production and the context centric multimedia services related to the under-exploitation of the content creation design. This could support dynamic content generation adapted to the user or display profile. Our work faces it by implementing a web platform for automatic generation of multimedia presentat...

Smart devices have deeply modified the user consumption expectations getting used to rich interactive experiences around new media services. In this emerging landscape, TV rises as the central media device integrating the home network ecosystem. In the race to create more dynamic and customizable content, computer generated 3D graphics get a promin...

New production environments will demand extensive exchange of communication information. Wireless communications will provide effective means to meet these demands. However, it is important that effective protocols are available to deliver the required QoS. Cross-layer algorithms are potential candidates that exhibit interesting features compared t...