.:: AIT - Broadband Wireless & Sensor Networks Research Area ::.

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Scientific Contributions

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Broadband Wireless & Sensor Networks Research Area

CROWN

Full Project Name Cognitive Radio Oriented Wireless Networks
Start Date May 2009
End Date April 2012
Funding FP7
Status Completed
Official Web Site http://www.cs.qub.ac.uk/fp7-crown/index.html
Project Overview
The main purpose of the CROWN project is to understand the technical issues of Cognitive Radios, through a proof of concept demonstrator. CROWN is a Framework Program 7 (FP7) Future Enabling Technologies (FET) programme. Such programmes are classified as High Technical Risk but with High Potential reward.
The techniques branded as “Cognitive Radio” (CR) enable concepts such as dynamic spectrum licensing, where the reconfigurable spectrum radio is able to sense whether a particular band is being used or not and, to utilise the spectrum without interfering with the transmission of other licensed users. The CROWN project’s aspirations place it in a high-risk/high-return regime; it will help to revolutionize the spectrum licensing and efficiency landscape for personal wireless communications.
The second aim of this CROWN project is to establish a leading European research group of international standing, the focus of which is to advance the state of the art in CR networks. The goal of the consortium is to solve the fundamental signal processing, spectrum sensing, resource allocation and other technical challenges involved with CR networks and to bring the concept of CR networks from theory to practice. In particular, the project will research, develop, and analyse various challenges within the framework of the emerging spectrum sensing, spectrum sharing, learning, analysis and decision making concepts of CR networks.
Expected results
AIT’s contribution
Partners

Queens University Belfast (QUB) (United Kingdom (UK), Co-ordinator)

Athens Information Technology (AIT) (Greece, Technical Lead)

Eurecom Institute – Graduate University (France)

Darmstadt University of Technology (DUT) (Germany)

Infineon (France)

QinetiQ (UK)

Office of Communications (Ofcom) (UK – advisors – Dr William Web)

Institute for Inforcomm Research (I2R) (Singapore – advisors – Dr Ying-Chang Liang)

SMARTEN

SMARTEN
Full Project Name Smart management for sustainable human environment
Start Date 2009-12-01
End Date 2013-11-30
Funding funded by FP7, 238726
Project costs 3 640 000 €
Status
Official Web Site http://smarten-itn.eu/
Project Overview
There are increasing concerns regarding the environmental impact of human actions, the use of the environment and climate changes. These are coupled with ageing infrastructure systems, continuously growing and changing demands on the built and natural environments as well as limited financial and depleting natural resources.
Until now, research has been focused on the development of proactive risk-based approaches for civil infrastructure reliability and management with benefits in improved performance, safety and cost. However, there are significant uncertainties associated with the various predictive models directly affecting the quality of the decision making mainly due to the limited amount of information available on the condition, demands and actual performance of various systems.
Recently, a new generation of miniature wireless sensor platforms which utilize novel digital signal processing has emerged. These can be adopted to obtain large quantities of highly diverse sensor data that are continuously collected over a long period of time from multiple locations providing significant insight on the condition, demands and performance of the system. These developments open up a completely novel area of multidisciplinary research towards the smart management of sustainable environment. Even though there are top research institutions working in the field of wireless sensors and others in the civil infrastructure reliability and management, most of the activity is fragmented and there is no significant activity in performing multidisciplinary structured research for developing integrated smart and dynamic systems for effective management of the built and natural environment.
Expected results
The aim of SmartEN is to fill this gap and push innovation through the development of an ITN network that will focus on the development and effective integration of emerging technologies targeting key application areas of current interest to the European Commission and internationally.
AIT’s contribution
Partners

Cyprus University of Technology
Research Academic Computer Technology Institute
Imperial College
Research and Education Laboratory in Information Technology
University of Surrey
University of Pavia
Federal institute for Materials Research and Testing
Swiss Federal Laboratories for Materials Testing and Research (EMPA)
Ecole Nationale Supérieure des Télécommunications – Telecom ParisTech
Comsis
COWI
DFL Systems Ltd
Network Rail
Parsons Brinckerhoff
Intracom

WISESPOT

Full Project Name Novel wireless sensor nodes with smart antennas
Start Date
End Date
Funding Co-financing by Research Promotion Foundation Cyprus
Status
Official Web Site http://www.signalgenerix.com/index.php?option=com_content&view=article&id=11&Itemid=23
Project Overview
WiseSPOT is a research project which aims to develop a new generation of miniature low-power wireless sensor nodes that will utilize advanced smart antenna technology for continuous monitoring, localization and tracking of events in the network environment (i.e, crack detection in large structures, land movements in landslide prediction etc.).
Localization is a network function that requires the synergy of both hardware and software mechanisms, and is applied both for finding the relative and absolute locations of sensor nodes, as well as for localizing these events on the structure. An integral part of this research is the development of fast, energy efficient localization algorithms embedded on miniaturized sensor node hardware which will be developed in the framework of the project.
This technology is intended to develop a powerful remote monitoring tool for structural civil engineers which can be used for continuous monitoring of the health of large structures such as bridges, dams and the transportation infrastructure.
Expected results
AIT’s contribution
Partners
University of Cyprus

RESOLUTION

Full Project Name
Reconfigurable Systems for Mobile Local Communication and Positioning
Start Date 01/02/2006
End Date 01/02/2009
Funding EU FP6 IST 26851
Status Completed
Official Web Site http://www2.ife.ee.ethz.ch/RESOLUTION/
Project Overview
RESOLUTION (Reconfigurable Systems for Mobile Local Communication and Positioning) aims at developing of a wireless local positioning system with centimetre accuracy and real-time ability based on frequency modulated continuous wave radar. The key objective of RESOLUTION is the development and testing of a novel wireless positioning system, which is implemented on basis of standardized, un-licensed ISM (Industrial Scientific Medical) air interfaces or WLAN (Wireless Local Area Network). The system is expected to provide an inherent three dimensional localisation accuracy in the centimetre range, and real-time ability. Thus, novel local positioning applications, e.g. for smart factories, robotics, interactive guiding, object tracking and augmented reality are possible leading to an attractive economic potential. Market analyses are performed to allow a successful exploitation of the results.
Expected results
Two important wireless applications begin to merge in future systems, namely data communication and positioning. Compared to existing approaches based on GPS (Global Positioning System), cell-ID (Identification), RSS (Receive Signal Strength) or UWB (Ultra-Wideband) TOA/AOA (Time/Angle of Arrival), RESOLUTION enhances the state-of-the-art in terms of local positioning accuracy. Further advantages such as real-time ability and self-sustaining operation without dependency on any external operator are leading to novel and enhanced applications, e.g. for automated factories and guiding. The two major application scenarios are outlined in the following sections.
Smart Factories
A smart factory is based on knowing the position of every work-piece, fabrication tool, transport machinery or maintenance worker at any time and everywhere.
Position tracking performed by a host enables several exciting new features:

Complete overview over the location and amount of all supplies and tools included in the manufacturing process.

By virtue of wireless networks, real-time data access is possible anywhere and anytime.

Due to information transfer enhanced global management and product state monitoring is possible.

The level of automated fabrication can be increased.

Optimization of material flow and resource delivery.

Less storage area and material consumption.

Reduced fabrication time.

Efficient use of fabrication tools and machines.

Collision avoidance and increased security.

Interactive Guiding
Real-time based active mapping, e.g. for advanced sightseeing, in museums, shopping malls, and amusement parks, are useful for guiding of pedestrians. The positioning is marked in a PDA based map and can be transferred to a server. Location dependent actions can be applied to increase the amusement and information quality. The services can be combined with location-aware billing, which decreases personnel costs and improves the billing system.

AIT’s contribution
AIT focuses on the use of signal processing techniques for improving indoor localisation accuracy. A super resolution technique, the MUSIC algorithm combined with multiple antennas, is used to improve the resolution of the system. This technique is based on eigenvalue decomposition and has been used on real data, giving real time resolution of 20.58 cm in 1D distance measurements, in a true indoor environment representing a worst case scenario channel. The resolution achieved using the MUSIC algorithm is about 3.5 times better than the standard power spectrum techniques such as FFT that were previously used for such systems.

Partners

ETH Zurich

Siemens

TU Berlin

Dresden University of Technology

University of Erlangen-Nuremberg

RIO System

Signal Generix

Warsaw University of Technology

Exodus

Research and Educational Society in Information Technology

WINSOC

Full Project Name Wireless sensor Networks with self-organization capabilities for critical and emergency applications
Start Date 01/09/2006
End Date 28/02/2009
Funding EU FP6 IST 33914
Total: 3.86 Million Euro
EU: 2.44 Million Euro
Private and National: 1.42 Million Euro
Status Ongoing
Official Web Site http://www.winsoc.org/
Project Overview
Wireless sensor networks are currently receiving great attention as a basic tool to detect emergency events or monitor physical parameters of interest, such as radiation, pollution, temperatures, pressures, and so on. The major problems in designing sensor networks are the high reliability required to the whole system, to be contrasted with the potential unreliability of the single sensor, and the possibility of congestions around the sink nodes that could prevent critical information to reach the control centres at the right time. The key idea of WINSOC is the development of a totally innovative design methodology, where the high accuracy and reliability of the whole network is achieved by introducing a suitable coupling among adjacent, low cost, sensors, that gives rise to distributed decisions, much more accurate than that of each single sensor, without the need for sending all data to a fusion centre. The whole network is hierarchical and composed of two layers: a lower layer composed of low cost sensors, responsible for gathering information from the environment and producing locally reliable decisions thanks to proper interaction among the nodes, and an upper layer, composed of more sophisticated nodes, whose goal is to convey the information to the control centres.
The local interaction among the low cost sensors is the key point that increases the overall reliability and provides scalability and fault tolerance. Thanks to its distributed processing capabilities, the risk of having congestion around the control nodes is strongly reduced. Building on this idea, the consortium has put together expertise from big companies, academies, research centers, end-users and SME's, to create a strong synergism between academic world, industries and end-users. The primary goals of WINSOC are to develop an innovative general purpose sensor network architecture having the distributed processing capabilities described above and to test applications on environmental risk management, with focus on landslides detection, gas leakage detection, and large scale temperature field monitoring.
Expected results:
Scrutinizing the state-of-the-art of the paradigms typically employed in sensor networks, it is possible to recognize a common critical factor: the current paradigms greatly reflect (although scaled and adapted) a well known and consolidated methodological approach borrowed from TLC networks, which however has been developed to cope with totally different requirements and constraints, with respect to a sensor network. The most typical solutions try to adapt classical telecommunication protocols, except for a much greater emphasis on energy-efficient design (e.g., ZigBee). However, they still require rather sophisticated network protocols and management overheads in applications where the bit rate required by the sensor network is relatively small and what is really necessary is only to bring the event of interest from the source to the right control node. Typically, the congestion around the sink nodes is only alleviated, but not avoided and the network is not scalable.
In WINSOC, we envisage the development of a very innovative concept of sensor network that represents a significant departure from current proposals. The network is organized in two hierarchical levels. At the low level, there are very simple nodes that gather relevant information and interact with each other to achieve a consensus about the locally observed phenomenon. The interaction occurs through a very simple mechanism that does not require complicated modulation, MAC, or routing strategies. This interaction among the sensors is the key feature, as it improves the reliability of the local decisions and, at the same time, it yields fault tolerance and scalability. The decisions taken locally are then communicated to the upper level nodes that take care of forwarding them to the appropriate control centers.
Building on this fundamental structure, WINSOC has two primary objectives:
1) Develop and test innovative algorithms implementing the self-organization capabilities of the low level sensors and devise the most appropriate radio interface responsible for the interaction among nearby sensors; this technology has a rather broad scope and it is especially useful for environmental monitoring.
2) Develop and test three system level simulators addressing the following applications in environmental monitoring: i) detection or prediction of landslides (according to US government reports, landslides have killed more than 500 people from 1998 to 2001); ii) detection of gas leakage, to prevent hazard situations or simply avoid unnecessary wastes of energetic resources; iii) monitoring of temperature fields, as a way to detect fires or, even better, to predict the risk of a potential fire in a given area. The three simulators will incorporate the emulation of the physical environment under test, for the applications mentioned before, the reaction of the network to hazardous events, the performance of the network in terms of reaction time, probability of detection, estimation accuracy, localization, fault tolerance.
3) Develop a reduced scale experiment for testing the proposed approach in the case of temperature monitoring and obtain the deployment experience from landslide detection experiments with in-situ monitoring.
AIT’s contribution
As a subcontractor of INTRACOM Telecom, AIT has undertaken the design and development of an end-to-end platform for simulation of wireless sensor network applications. This platform integrates a physical model simulator for the underlying physical process, (e.g. the FARSITE Simulator for wildfire spreading, or the CHASM Software simulator for landslides), with a novel, flexible simulator for WSNs, Castalia. We use this platform to evaluate the performance of various routing protocols in realistic operational conditions, as well as, for developing applications which are custom tailored to the particular operational scenario, e.g. wildfire detection and tracking, or landslide detection. The work will emphasize on minimizing the sensor’s power consumption and on network optimization techniques under such conditions.
Partners

SELEX Communications

Dune S.R.L.

Intracom S.A. Hellenic Telecommunications and Electronics

Universita Degli Studi di Roma, “La Sapienza”

Ecole Polytechnique Federale de Lausanne

Ceske Centrum pro vedu a spolecnost>

Universitat Politecnica de Catalunia

Commissariat a l’ energie atomique>

Amrita Viswa Vidyapeetham

Antrix Corporation LimitedANTRIX CORPORATION LIMITED

Sapienza SL

MAGNET Beyond

Full Project Name My personal Adaptive Global NET and Beyond
Start Date 01/01/2006
End Date 01/06/2008
Funding EU FP6 IST 027396
Status Completed
Official Web Site http://www.ist-magnet.org/
Project Overview
Some of the main focus areas of MAGNET Beyond are user-centricity, personalization and personal networking.
MAGNET Beyond wants to improve the quality of life for the user, and this we will do by introducing new technologies that are more adapted to the needs of the user. We do research that makes environments smarter, more responsive, and more accommodating to the needs of the user, and this without jeopardizing privacy and security of the individual. MAGNET Beyond has a total cost of €16.3 million.
The MAGNET Beyond vision is to make the MAGNET concept a reality, i.e. Personal Networks (PNs) will support users’ professional and private activities without being obtrusive, and while safeguarding privacy and security. A PN may operate in both ad hoc and infrastructure based networks and will be dynamic and diverse in composition, configuration and connectivity depending on time, place and circumstances as well as resources required, and last but not least preferred and/or needed co-operating partners.
The MAGNET Beyond mission is to make MAGNET happen by enabling commercially viable PNs that are attractive, affordable and beneficial for end-users in their everyday life. The MAGNET Beyond project constitutes a system approach to what is expected to be one of the most important telecom related growth markets of the future, i.e. Personal Area Network (PAN) style networking. MAGNET Beyond does not treat PAN networking in isolation: the concept is extended into that of a PN by interconnecting PANs with in particular wireless wide area networks to access the rich services available on and trough these networks, including the interconnection to other PANs.
Expected results The goal of MAGNET Beyond is to take the MAGNET vision of personal services over Personal Networks a step closer to reality. The overall objective is to design, develop, demonstrate and validate the concept of a flexible Personal Network (PN) that supports resource-efficient, robust, ubiquitous personal services in a secure, heterogeneous networking environment for mobile users. Of paramount importance is the requirement that a PN will support its owner in all his/her private and professional activities and interactions, without being obtrusive and while safeguarding the security and privacy of the users and their data.
In PNs, users interact with various companion, embedded, or invisible computers not only in their close vicinity but potentially anywhere. They also need to interact with other persons having their own PNs, leading to group communication and federation of PNs to achieve particular tasks.
PNs comprise potentially all of a person’s devices capable of network connection in the real or virtual vicinity. This requires major extensions of the present Personal Area Network (PAN). PNs are configured in an ad hoc fashion, as the opportunity and the demand arise to support a person’s private and professional applications. These applications may run on a user’s personal devices, but also on foreign devices. PNs consist of communicating clusters of personal digital devices, possibly shared with others, and connected through various suitable communications means. Unlike PANs, with a limited geographically coverage, PNs have an unrestricted geographical span, and may incorporate devices into the personal environment regardless of their geographic location. In order to extend their reach, they need the support of infrastructure-based, and also ad hoc networks.
Six broad areas of research:

Users, Pilot Services and Market

PN Networking

Security and privacy

PAN-Optimised Air Interfaces

Link level prototypes

PN platforms

PN platforms MAGNET Beyond developed and optimized WPAN specific air interfaces: two physical (PHY) layers were developed, a high-data rate (HDR) MC-SS PHY layer and a low data rate (LDR) FM-UWB PHY layer. In addition, measurements proved significant power level gains for a simple switched diversity system in a handheld to handheld scenario. Also interference to the HDR mode from other systems was modelled and mitigation mechanisms were introduced, such as power loading, interleaving and space diversity (MIMO) techniques.
MAGNET Beyond developed and implemented a low-band IC and a highband RF IC for the FM-UWB air interface (VCO, prescaler, WideBand DeModulator (WBDM), LNA, subcarrier processor, DDS). Further, the projects designed and implemented an RF board for the low band system that uses the MAGNET chipset and that is interfaced to the LDR digital board.
MAGNET Beyond achievements will forward standardization in the 802.14 and.15 and also within the ETSI activities. Further, the projects proposed and developed a modified version of the AWMA (Alternating Wireless Medium Access) algorithm for the coexistence of IEEE 802.15.3 and IEEE 802.15.4 air interfaces and a modified version of the PTA (Packet Traffic Arbitration) algorithm for the coexistence of IEEE 802.15.3 and IEEE 802.15.4 air interfaces.
AIT’s contribution INTRACOM’s subcontractor in WP3 of the project. AIT is the WP3.2 Task leader with contributions in the cross-layer (PHY/MAC/ scheduling) optimization of the High Data Rate PAN protocol stack under QoS constraints for streaming media transmission; theoretical analysis and ns-2 implementation and simulations.
Partners

Aalborg University, AAU –Denmark, www.aau.dk

Advanced Communications Research and Development S.A., ACORDE –Spain, www.acorde.biz

ALCATEL Italia, ALA – Italy, www.alcatel.it

Brunel University, Brunel – UK, www.brunel.ac.uk/

Centre Suisse d’Electronique et de Microtechnique – Recherche et Development SA. CSEM – Switzerland, www.csem.ch

Commissariat à l’Energie Atomique, CEA -France www.cea.fr

National Institute of Informational and Communication Technologie, NICT -Japan www.nict.go.jp

Technical University of Denmark, DTU – Denmark www.dtu.dk

Delft University of Technology, DUT - The Netherlands, www.tudelft.nl

France Telecom R&D, FTRD – France www.francetelecom.com/fr

FGH/FOKUS, FHG/FOKUS – Germany www.fraunhofer.de/german/

Forschungszentrum Telekommunikation Wien Betriebs GmbH, FTW – Austria, www.ftw.at/ftw/

Groupe des Ecoles des Télécommunications - Institut National des Télécommunications, GET-INT – France, www.get-telecom.fr/fr_accueil.html

Institute of Communication and Computer Systems (ICCS) of the National Technical University of Athens, ICCS/NTUA – Greece, www.iccs.gr/test.htm

Interuniversitair Micro-Elektronica Centrum vzw, IMEC – Belgium, www.imec.be

INTRACOM S.A. Hellenic Telecommunications and Electronics Industry, ICOM – Greece www.intracom.gr

Lund University, Lund – Sweden www.lu.se

NEC Europe Ltd. NEC – Germany, www.neceurope.com/index.asp

Nokia Corporation OYJ, NOK-FI – Finland www.nokia.fi

Philips Consumer Electronics IC-Lab. Philips IC - Lab The Netherlands, www.philips.com

Shanghai Institute of Microsystems and Information Technology/CAS, SIMIT/CAS – China, www.sim.ac.cn

Tata Consultancy Service, TCS - India India www.tcs.com

TeliaSonera, TS – Sweden www.teliasonera.com

Telefónica Investigación y Desarrollo Sociedad Anónima Unipersonal, TID – Spain www.tid.es

Universidad de Cantabria, UC – Spain www.unican.es

The University of Surrey, UNIS – UK, www.surrey.ac.uk

University of Rome “Tor Vergata”, URTV – Italy www.torvergata.it

Technical Research Centre of Finland, VTT – Finland, www.vtt.fi/indexe.htm

Twente Institute of Wireless and Mobile Communications, WMC - The Netherlands, www.ti-wmc.nl

University of Kassel, UNIK – Germany, www.uni-kassel.de

BroadWay

Full Project Name BroadWay
Start Date 01/01/2002
End Date 31/12/2004
Funding EU FP5 IST- 32686
Status Completed
Official Web Site http://www.ist-broadway.org/
Project Overview
BroadWay aims to propose a hybrid dual frequency system based on a tight integration of HIPERLAN/2 OFDM high spectrum efficiently technology at 5GHz and an innovative fully ad hoc extension of it at 60GHz named HIPERSPOT. The concept extends and complements existing 5GHz broadband wireless LAN systems in the 60GHz range for providing a new solution to very dense urban deployments and hot spot coverage. This system is to guarantee nomadic terminal mobility in combination with higher capacity (achieving data rates exceeding 100Mbps). The tight integration between both types of system (5/60GHz) will result in wider acceptance and lower cost of both systems through massive silicon reuse. The new radio architecture will, by construction, inherently provide backward compatibility with current 5GHz WLANs (ETSI BRAN HIPERLAN/2) and thus, the innovations emerging from this project will be a driver for standardization and spectrum allocation of the next ETSI BRAN HIPERLAN generations.
Expected results
BroadWay objective is to define, develop, and demonstrate key components of a hybrid dual frequency system based on HIPERLAN/2 OFDM high spectrum efficient technology at 5GHz and an innovative fully ad hoc extension at 60GHz named HIPERSPOT equipped with a novel more robust modified multicarrier transmission scheme. The main target is to offload the 5GHz radio band in dense deployment areas, to exactly focus radio beams and to allow unlicensed and self-organizing autonomous operation. Seamless switching between 5GHz and 60GHz is supported. Two 60GHz operation modes are specified yielding 2 device classes: high end (exceeding 100Mbps) and lower cost. HIPERSPOT is based on HIPERLAN/2 hardware extensions ensuring backward compatibility with 5GHz WLANs. The main novelties of BroadWay are the research and development of the integrated 5GHz and 60GHz QMMIC frontend based on hybrid HEMPT technology and the implementation and demonstration of the self-organizing multi-hop networks.
AIT’s contribution
Opportunity Driven Multiple Access (ODMA) for multi-hop ad hoc networks
Partners

Motorola Labs Paris – CRM
Farran Technology Ltd
Institut fuer Mobil- und
Satellitenfunktechnik Gmbh – IMST
Intracom S.A. Hellenic Telecommunications and Electronics Industry – INTRACOM
Netherlands Organisation for
Applied Scientific Research – TNO
Technische Universitaet Dresden – TUD
National and Kapodistrian University of Athens - NKUA

Romantik

Full Project Name ResOurce Management and AdvaNced Transceiver AlgorIthms for Multihop NetworKs
Start Date 01/03/2002
End Date 28/02/2005
Funding EU FP5 IST 2001 - 32549
Status Completed
Official Web Site http://www.ist-romantik.org/
Project Overview
ROMANTIK will develop and evaluate "structured" and "ad hoc" multi-hop radio networks as well as intelligent relaying techniques for 3G+ and 4G mobile/wireless communication systems. As link layer performance enhancement will increase the practicality of multi-hop radio networks, ROMANTIK also aims to develop and evaluate two innovative link layer technologies: CDMA with Cyclic Prefix Extension (CDMA-CPE) and Channel Prediction Enhanced Adaptive Modulation (CPEAM), including the benefits of Multiple Input Multiple Output (MIMO) techniques. Such advanced radio link techniques will complement and enhance the benefits derived from multi-hop radio networks and intelligent relaying techniques in 3G+ and 4G systems. OBJECTIVES ROMANTIK will to develop and evaluate "structured" and ad hoc multi-hop radio networks as well as intelligent relaying techniques for 3G+ and 4G mobile / wireless communication systems. Within this primary objective, specific objectives are the development of: - radio resource management algorithms, - strategies for intelligent relaying, - innovative radio link techniques such as CDMA with Cyclic Prefix Extension (CDMA-CPE),called to greatly simplify Multiuser Detection (MUD) processing and such as Channel Prediction Enhanced Adaptive Modulation (CPEAM) technique to achieve time diversity within the transmitted symbol by extending the symbol duration beyond the channel coherence time.
Expected results
The primary objective of ROMANTIK is to develop and evaluate structured and un-stuctured multi-hop radio networks as well as intelligent relaying and inter-network techniques for 3G+ and 4G mobile/wireless communication systems. Multi-hop networks can therefore be described as taking one of two forms: fixed pre-planned relays, dynamically forming relaying networks as an extension of radio access infrastructure, or else, opportunistic multi-hop networks referring to infrastructureless (or with little infrastructure support) networks where relay communication is achieved through user devices. In both cases enhanced coverage and capacity has been observed.
A generalization of the typical multi-hop approach is the novel communications paradigm: cooperative transmission, where the signal received from the relay is combined at the destination with the signal received from the source. Therefore, the cooperation creates a “virtual” MIMO system and so diversity and/or multiplexing gains are possible with simple user equipment.
On the other hand, to achieve the above primary project objective, innovation in link layer technologies (such as cost-effective MUD, MIMO, STC and Adaptive Modulation) is required. Link layer improvements have been shown to enhance the practicality of multi-hop radio networks. To put in evidence this point, the multi-hop network techniques have been evaluated with and without the benefits of link enhancing techniques.
AIT’s contribution
Research and investigation and design of a Security Aware MAC. Creation of Mechanisms for cooperation and enforcement for the clustered BROADWAY ad hoc network. AIT is INTRACOM S.A. sub-contractor.

Partners

University of Bristol,
Universitat Politecnica de Catalunia
Dune S.R.L.
Intracom S.A. Hellenic Telecommunications and Electronics
University of Rome, “La Sapienza”
Fujitsu Laboratories of Europe Ltd.,
Telenor AS

Students' Views

“The MBIT Master program fulfils the need in the highly challenging and competitive technological market for executives equipped with the combined pioneering technical knowledge and managerial skills necessary for the commercialization of technical advances. As the Human Resources Director of a Greek Multinational Corporation, I welcome this program considering its graduates to be a much -needed asset to business in Greece and throughout the region.”

Michalis Proutzos, HR Director, INTRACOM S.A.

news list News & Announcements

AIT's 1st Gaming Forum a Success!
2012-05-11

AIT's 1st Gaming Forum was a two day celebration of Gaming that brought together the Greek gaming industry with academics and gaming enthusiasts of all ages. The Gaming Forum was co-organized with the British Council and Cowboy Tv and realized thanks to the support of Grand Sponsor hellas online, Gold Sponsor intralot, Sponsor the EU project KnowInG and Grand Communication Sponsor MTV.

17 High School students participated in the ATHENA Exchange program co organized by AIT & INTRACOM Albania
2012-05-07

17 students and 3 professors from Arsakeio, Harry Fultz, Ismail Qemali, Sami Frasheri and Petro Nini Luarasi schools, spent 4 days of cultural and educational experiences.

Open Invitation to AIT Research Seminar, April 10, 2012
2012-04-03

AIT is pleased to invite you to a Research Seminar on "Technology-enabled social learning.". The Seminar will be conducted by Mr. Hristijan Petreski, Project Manager, Intracom.

AIT Alumni Club has 44 new members!
2012-03-16

"It is not the solution all of us to go abroad" said Mr. Robby Bourlas, Managing Director of the Public, Multirama and getitnow.gr addressing to 44 students representing Greece, Cyprus, Jordan, Romania, Malawi, and Armenia, graduated with a MSc in Management of Business, Innovation & Technology (MBIT) from AIT. "You can still find business opportunities in Greece, as long as you believe it. In a difficult period like the one we live in, it is just harder to find these opportunities."

Albanian high school students to visit AIT
2012-03-14

Athens Information Technology (AIT) in Greece, in collaboration with INTRACOM Telecom Albania, invites Albanian high school 3rd year students, to join a 4- day excursion in Athens, Greece, between April 28 - May 1, 2012.