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Technical Exchange

Universities, Industrial
and
Pre-Competitive R&D Activities

The Digital Enhanced Cordless Telecommunication standards have evolved over the past decade - the term DECT was first coined by ETSI in January 1988 at the beginning of the formal specification process.  First standards emerged in 1992.  An extensive range of enhancement and extensions, including notably the DECT Profiles - such as the ISDN profile and the GSM interworking profile - have emerged in subsequent years.

In support of this extensive standards development activity, the relevant technology has been the subject of widespread and in-depth research and development in industrial and academic laboratories around the world. This page provides links to some of these institutions and summaries, where available, of the type of work undertaken.

If you know of relevant work or organisations not included on the list below, please tell us so that we can make this section more comprehensive.   Thank you.


ACTS/RACE Projects involving DECT

The ACTS and RACE programmes are pre-competitive research programmes supported by Directorate General XIII of the European Commission.   Projects undertaken under these programmes are essentially collaborative between academia and industry, with some 50% of the costs covered by the industrial participants and the remainder by the EC.  The following projects under these programmes have included an element of DECT R&D.

EXODUS (Experiments On the Deployment of UMTS)
The EXODUS Project is a key activity taking DECT forward within the framework of the ACTS programme. A number of papers have been published based on work from EXODUS, including this one from Italtel and this one from the official ACTS site, and one presented at ISS97

"DECT as a UMTS Access Technology" by Arik Elberse, Teltec, (Ireland)
Published at the ACTS Telecommunication Summit, Granada, Spain, Nov. 27-29th 1996.
This paper proposes DECT as a fully featured and capable UMTS Access Technology. It explains how the features and extensive standardisation of DECT can be leveraged to allow DECT to provide UMTS services through its seamless integration and interworking with future wired and wireless networks. This approach would avoid the unnecessary and undesirable evolutionary path which involves multi-technology Core Networks and multiple incompatible handsets and terminals. It would thus allow the existing and future investments in GSM (through its already standardised interworking to DECT) and DECT-only mobile networks to be maintained. The paper builds on work undertaken as part of the ACTS EXODUS project.

"IN Evolution to support Mobility in DECT Access Network" by Roberta Gobbi, presented at the recent ISS '97 Congress (Toronto, Sept. 21-26). This paper outlines the EXODUS project's activities in achieving a suitable transition from CTM towards UMTS with a set of UMTS services to be implemented in the second phase field trials.

A variety of internet-based services using mobile terminals was demonstrated by the EXODUS project, using DECT as the radio access technology, at the IS&N Conference in May 1997 in Turin, Italy - 4th International Conference on Intelligence in Services and Networks,

COBUCO (COrdless BUsiness COmmunication system)
The COBUCO project aims to design, develop and experiment with an UMTS demonstrator system using state-of-the-art DECT and ATM technology and offering cordless and fixed multimedia and multirate services to the private business environment.
"Developing UMTS Mobility Procedures over DECT and ATM Technologies",
I.I.Manolessos, J.G.Markoulidakis, G.L.Lyberopoulos, E.D.Sykas, M.E.Theologou

Mobile Audio Visual Terminal, MAVT
This project has been working towards the development of the product concept embodied in its title, with work from the project feeding into the MPEG4 standardisation activity.   A DECT-based demonstrator has been built to implement the compression technology and demonstrate feasibility.
Official project summary
The QMC description

TSUNAMI I and II
Smart antennas - demonstration of the smart antenna, SDMA, system concept using DECT technology as a testbed
Project summary


Universities and Research Institutes / Companies

Listed alphabetically by country.
Note to Universities and other R&D centres working on DECT:   Summaries of DECT-related activities included below may be amended by submitting a revised version by e-mail to us - please keep it to no more than two sentences, with hyperlinks.  Please also e-mail us full reference details of recently published papers so they can be included on the DECT bibliography pages and cross-linked.   Thank you.

Denmark
Centre for Personkommunikation, CPK, Aalborg

DECT testbed, used primarily for investigations into time dispersion and propagation pathloss in order to make a general coverage prediction model for DECT deployment. Another area of research is antenna configurations and diversity techniques for base stations.

Germany
Aachen University

Overview of DECT at COMNETS
Have developed a simulation tool for capacity evaluation.

"DECT Suitability for PCS and WLL", 1996
Capacity calculations for the use of DECT for PCS and WLL applications.

Bergische Universitšt Gesamthochschule Wuppertal
A range of diploma student projects, including data transmission, burst mode controller implementation, test systems, Circuits and systems for mobile communications, Research Activities in DECT.

IMST, Institut fur Mobil- und Satellitenfunktechnik GmbH, Kamp-Lintfort
Work on DECT has included a comparison of DECT and PHS for public access

Ulm  University
DECT LANs

Ireland
University of Limerick
DECT protocol stack development with Linux interface
The objective of this project is to develop a DECT protocol stack that interfaces with the Linux operating system and then to investigate the performance of this DECT stack.   The project will be based around the National Semiconductor PC Development Kit and the TS 1220 DECT Protocol Analyser.  The National Semiconductor Kit includes and ISA Development Board which supports the Physical and MAC Layers of DECT.  Initially, a simplified model of the DECT Layer will be implemented (C/C++) and this will have the capability to communicate with the DECT MAC and Physical Layers on the National Semiconductor Board.  Later, a more complex DLC Layer will be developed to take Error Correction into account.  Further development may follow . The Development will be primarily concerned with the C-Plane of the DLC Layer.

Singapore
Centre for Wireless Communications,

Activities in hand to develop a capability in cordless communications.
Projects include:
DECT - based integrated voice/data wireless PABX system
DECT RF transceiver modules
DECT - based PCMCIA modules

Sweden
Royal Institute of Technology, KTH

Various DECT activities and useful links

UK
Bradford University, UK

Working for British Telecom, using their DECT simulator to investigate a range of novel applications for DECT

Queen Mary College, London, UK
DECT used as a testbed for a mobile audio-video terminal, MAVT - see above

USA
University of California at Berkeley
, USA
Design of analog circuits for high integration, using three silicon based technologies; CMOS, BiCMOS, and Bipolar, exploring the various tradeoffs that exist between these technologies in order to determine the best overall solution in terms of performance, cost, and power. Various papers published on the application of their results to cordless telecommunications, including DECT.

 

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