Research

Data Distribution Service

Data Distribution Service

The Data Distribution Service (DDS) is a OMG standard for data-centric communications using a publish subscribe paradigm. Our research in this field is focused in improving some aspects of the DDS such as interoperability, security and the use of this technology for real-time multimedia streaming

Broadband Wireles Networks

Broadband Wireless Networks

The area of Broadband Wireless Communication Networks is devoted to the investigation and design 4G networks (such LTE-Advanced technology) and Beyond 3G networks based on OFDMA and WCDMA (such as LTE and HSDPA technologies). Its core objective includes the research of coverage improvement and capacity enhancement solutions that are essential for broadband wireless networks in order to deliver cost-effective wireless services.

Broadband Wireles Networks

Wireless Local Area Networks

The research on Wireless Local Area Networks is dedicated to the improvement of the subjective quality that the end-users experience in IEEE 802.11 networks. In particular, this area is focused on the guarantee of QoS (Quality of Service) and QoE (Quality of Experience) requirements and the enhancement of the system capacity. For these purposes, the research tasks in this field include the design of Radio Resource Management (RRM) mechanisms and the efficient usage of the scarce wireless capacity.

Quality Of Experience

Quality Of Experience

Our work in the Quality of Experience Networking field aims to devise mechanisms that permit network services to maximize the level of the user satisfaction. In so doing, we can take the most of the resources of the network, optimizing the service performance. Our work includes deriving utility functions which map the network performance to the perceptual user QoE, designing mechanisms and protocols whose decisions are based on those utility functions, and providing mechanisms which measure the services performance.

Quality Of Experience

P2P-based architectures, RELOAD

In collaboration with NomadicLab (Ericsson Research, Finland), we have been working on the IETF in-progress RELOAD standard. Our research has been focused on two different aspects. First, on using RELOAD in Data-Centric Publish-Subscribe environments; and second, on using RELOAD with constrained devices.