Prof. Marcos Katz


Principal investigator at CWC for five projects:

ATLAS (Automated Testing for LTE-Advanced Systems)
The goal of the ATLAS project is to connect the existing physical layer simulation and hardware emulation models to the high layer network emulators and testers. This will provide opportunities for network testing equipment development and network protocol crosslayer optimization in practical networks and products. For this purpose simulation models of PHY, MAC and RLC layers will be developed. The main application system is the 3G Long Term Evolution Advanced (LTE-A) system and standard. Starting point will be the testing platform, which is now being developed in current CrossNet project. The platform is meant to support LTE standard, thus further project work is needed for development towards LTE-A.

CORE (Cognitive Radio Trial Environment)
The expected huge growth in wireless data traffic requires new technologies, in order to provide sufficient performance at an acceptable cost. The increasing traffic means also immense growth in the energy consumed by wireless systems, and we must strive to limit this. It is foreseen that cognitivity in networks and devices will have a significant role in reducing both the cost and energy consumption. Lower consumption of energy means also better user experience, thanks to longer battery life time. The first (1) target of this project is to develop a trial environment for cognitive technologies and solutions in wireless communications. Cognitivity opens up visions for improved wireless data transmission also outside mobile communications. As an example, industry automation currently uses numerous separate wireless solutions for different applications. It is expected that the capital and operative expenses of data transmission systems in the industry can be considerably reduced, thanks to cognitive solutions. On the other hand, intelligent applications can exploit the radio resource more efficiently and offer a better user experience, if they are aware of the radio network status. The second (2) target is to specify an interface for connecting intelligent applications to cognitive networks and devices. The third (3) target of the project is to test new use cases for cognitive radio technology, using the cognitive trial environment and the open interface. Adoption of a new technology, replacing a current technology with a new one, and particularly new applications for a technology will most likely impact the business ecosystem. One can expect the emergence of new players and roles. Completely new business logics and business models are also possible. The fourth (4) target is to define which changes in the business environment are likely, due to cognitive technology. Cognitive radio techniques will change the spectrum regulation and commercial exploitation will require standardization. Additionally, we will explore operative models for bringing cognitive solutions efficiently to new applications, and which promote the creation of new business.

GREEN-T (Green Terminals for Next Generation Wireless Systems)
One of the biggest impediments of future wireless communications systems is the need to limit the energy consumption of the battery-driven devices so as to prolong the operational times and to avoid active cooling. In fact, without new approaches for energy saving, there is a significant threat that the 4G mobile users will be searching for power outlets rather than network access, and becoming once again bound to a single location; where some authors describe this effect as the “energy trap” of 4G system. Therefore GREEN-T aims to overcome the energy trap of 4Gmobile systems by investigating and demonstrating energy saving technologies for multi-standard wireless mobile devices, exploiting the combination of cognitive radio and cooperative strategies while still enabling the required performance in terms of data rate and QoS to support active applications. This notion is further extended by investigating lightweight security approaches, which is a pivotal requirements of 4G systems that will constitute a multitude of players from network operators to services provides cooperating under a converged service platform. GREEN-T commits to the creation of tangible outputs, this includes not only implementations and showcases, but also inputs to standardisation, and where regulation is affected to regulation (via input to, for example, future editions of the ERO (European Radiocommunications Office) workshops on SDR/CR) and finally through creation of commercially exploitable intellectual property. By definition GREEN-T is a research not a development project, however with having a rather large number of SMEs and industry, with a clear scope for commercial exploitation of the project outcomes. Envisaged products include:
a) LTE emulator platform; to serve as an experimental platform for operators to investigate new deployment scenarios for LTE energy saving
b) Energy-efficient demonstrators for cooperation with short-range and vertical handovers; The GREEN-T is in line with the European strategy on Green communications, and can provide the knowledge that will be the base of new products and even new industries. Particularly, the energy efficiency solutions will have a very direct impact on the network operator OPEX, and hence significantly change the operator’s competitiveness
c) Products for public safety scenarios, specifically for the PMR devices of TETRA and TETRAPOL networks
d) Incentives to encourage cooperation among users/handsets and develop attractive business models for the network/service providers to stimulate and motivate cooperative networking among users and between heterogeneous networks.

INDICO (Individualized Connected Health)
The project is scenario type approach to develop future service concepts for the health care sector to support individualized health and well-being processes. It opens the possibility to build up a road map for the future Connected Health program. The focus is more in predicting and assessing health risks rather than disease treating and understanding the disease mechanisms. It is a multidisciplinary approach which take into account the aspects how individuals can better promote the health with the knowledge of his/her health data. The aim is to modernize the viewpoint of healthcare. New means are explored to collect, save and analyse the health and activity data of individuals as well as looking new opportunities to use the data for preventive healthcare. Since the power of data storage and analysis in a Cloud System are immense, large data sets or analyses of unique assets such as bio-banks can be offered as professional services. New predictive methods are studied to support individual’s life style change. Also, economic evaluations are used to assist in setting priorities for resource allocation decisions and designing services when there are competing health interventions and limited resources. The resulting road map of different service concepts can be utilized by individual citizens, companies (for occupational health care, consumer health services) and public health and care organizations.

Santa Clouds (Services and ApplicatioNs orienTed cooperAtive and cognitive networking: Mobile CLOUDS )
The rapid development of Internet as well as the increasing demands from mobile users create stringent requirements for the forthcoming wireless and mobile communication networks. Heterogeneous multimedia services need to be provided to a multiplicity of users using different terminals. The key challenges include not only enhancing network and link performance (e.g. data throughput, QoS, coverage, network capacity, etc.) but also exploiting radio resources in an efficient manner. Of particular importance are the efficient utilization of spectrum and energy. As multimedia-based services rely on increasingly higher bandwidth signals and the demand for data and multimedia services continues to grow dramatically, it is clear that wireless communication systems will need to make use of the available spectrum more carefully, in particular resorting to opportunistic approaches in order to increase the spectral efficiency of the network. On the other hand, wireless devices, more than ever, need to exploit efficiently their batteries, while the infrastructure (e.g., access points, base stations, etc.) should reduce drastically their power consumption as well as the radiated energy.
In the SANTA CLOUDS project we will exploit the fact that in most of the practical scenarios there is always a number of wireless devices with which a collaborative cluster can be formed. These clusters will be denominated a cloud. As the nodes of the cloud are assumed to be wireless devices, we will refer to this arrangement as a mobile cloud. We will assume that the wireless devices can be connected to each other directly using short-range links and also they can be connected to one or more overlay networks (e.g., cellular networks) using base stations or access points.
The SANTA CLOUDS project will focus on fundamental research of mobile clouds formation and dynamics. Practical and highly attractive applications will be the main driving force behind this research effort.