Radio and Wired Access Networks Research Group

Mission statement

- To advance spatial processing system integration into wireless network.
- Research on the new advanced spatial processing techniques.
- System approach for the link and network level integration of advances signal processing and coding techniques with elements of spatial processing.
- New simulation and modeling methods development to evaluate system/services improvements.

Radio Access Networks (Adrian Boukalov)

- System and link level integration of Smart Antennas (SA) with 3G (UTRA), Professional Mobile Radio (TETRA, MESA) and fixed wireless networks
- Integrated Space Time Frequency Receiver Design;
- Multiple Input Multiple Output (MIMO) system design and integration with CDMA radio networks

MLSE Receiver with SA (Muhammad Imadur Rahman)

- Space-Time MLSE receivers algorithms
- Frequency-spatial domains studying of urban radio channel with
Ray Tracing Program

Fixed Wired Networks (Lauri Halme)

- Cables, connectors and cabling

Balanced and coaxial cables and cabling
Small Offices Home Offices (SOHO) cabling

- Wired access networks and systems simulation
- Wired access networks system performance
- Power line communication
- Immunity, interference and Electromagnetic Compatibility (EMC)
- Wired access network system Integration: level of complexity of signal prosessing / coding techniques - equipment
- Economic studies of access networks solutions (Dongwei Zhang)

System Simulation (Hong Zhang)

- Access network system simulation

- Parallel programming / computing

- Development methods to combine signal- and system level simulation to evaluate service performance

Projects

- Modelling and simulation of wired communications channels fo fulfil system requirements of access networks
- Future Intelligent Wireless Communications Systems (FUCSY)

International co-operation

- ISO/IEC
IEC
ITU
ETSI membership
CENELEC

ETSI -MESA Project Partcipation in TSG RS

WWRF- Vision Book 2000

stanford_seal64.gif (2556 bytes) Collaborative research/visiting programs:
StanfordUniversity–Smart Antennas Research Group

Collaborative Research/visiting program
University of California Los Angeles (UCLA) Parallel Computing Laboratory

WinLab at Rutgers University

Bell Labs, Wireless Research Dep.

Invited lectures

Guest lectures

People

Lauri Halme
Adrian Boukalov
Dongwei Zhang
Hong Zhang
Erik Törnqvist
Muhammad Imadur Rahman
Juri Lisjutin
Aifeng Ren
Carlos Alburquerque
                     Topic of Master's Thesis: Spatially - temporary (ST) encoded multiple input
                                                               multiple output (MIMO) system with spatial multiplexing
Peter Antal

Alumni

Publications

Halme, L., Szentkuti, B.: The Background for Electromagnetic Screening Measurements of Cylindrical screens, Teletiedotuksia 1987 of the Finnish PTT, Helsinki (Special English Edition), pp. 29-37, or PTT Technische Mitteilungen No 3, 1988, pp. 105 -115, Swiss PTT, Berne

Halme, L.K.: Johtotransmissio ja sähkömagneettinen suojaus, (Transmission on lines and electromagnetic screening, in Finnish), Parts A and B, Otakustantamo 2nk Eddition Helsinki 1989, pages 605

Fowler, E.P., Halme, L.K.: State of art in cable screening measurements, Record of the Zürich EMC Symposium 1991, pp. 151-158

Halme, L.K.: Development of IEC cable shielding effectiveness standards, IEEE EMC Symposium 1992, pp. 321 - 328.

Halme L., Annanpalo J. and Kuitunen T.; Screening Theory of Metallic Enclosures, USA/Anaheim 8/1992

Halme, L., Kytönen, R.,: Background and introduction to EM screening (shielding) behaviours and measurements of coaxial and symmetrical cables, cable assemblies and connectors. P4/pp.1-28 ,IEE Colloqium on Screening Effectiveness Measurements, IEE London, Proceedings, reference no: 1998/452.

Halme, L., Hinoshita, S., Halmesvaara, M., Eriksson, L., Kytönen, R.: Electromagnetic screening and crosstalk of ICT networks, IEE Colloqium on Screening Effectiveness Measurements IEE London, Proceedings1998, P10/pp.1-20, reference no: 1998/452.

Halme L., Nupponen M, Nässi V. ( HUT/ Helsinki University of Technology) and Kytönen R., Sonera Corporation), [until 15 April 1998 Telecom Finland Ltd ], Effects of connecting hardware on the screening, crosstalk and transmission properties of a permanent datalink, EMC Zurich’99, 1999.

Halme L.: Primary and secondary electro-magnetic screening (shielding) parameters, EMC Wroclav 2000

Edward Mutafungwa, Lauri Halme, Viktor Nässi, Adrian Boukalov "A study of the Järvenpää-Lahti motorway's IT link alternatives for the connection of control stations", Espoo, Otaniemi: TKK Tietoliikennelaboratorio technology reports, 1998.

Adrian Boukalov "The impact of a non-uniform spatial traffic distribution on the CDMA cellular
networks system parameters", URSI/Remote Sensing Club of Finland/IEEE XXIII Convention on
Radio Science and Remote Sensing Symposium, Otaniemi 24-25 August, 1998, Helsinki University of
Technology Laboratory of Space technology Report 35, p 29-30

Boukalov Adrian, Sven-Gustav Häggman and Antti Pietilä "The Impact of a Non-uniform Spatial
Traffic Distribution on the CDMA Cellular Network System Parameters", ICPWC'99, Jaipur, India,
February 1999, pp. 394 -398.

Boukalov Adrian, Sven-Gustav Häggman "UMTS Radio Network Simulation with Smart Antennas ", Proceedings of the Virginia Tech Symposium on Wireless Personal Communications, June 2-4, 1999,
Blacksburg , USA , pp. 95-102.

Boukalov Adrian, "System Aspects of Smart Antennas Technology" Presentation at Radio Communication Systems Department / School of Electrical Engineering and Information Technology (EIT) at the Royal Institute of Technology (KTH), Stockholm, Sweden. Available at: http://www.s3.kth.se/radio/seminars/sa.pdf.

Boukalov Adrian, Sven-Gustav Häggman "An overview. System aspects of Smart Antennas
Technology in Wireless Communications" (Invited) , Proceedings of the 11th International Conference
on Wireless Communications vol. 2, 12-14 July 1999 Calgary , Canada, pp.1-14.

Boukalov Adrian, Sven-Gustav Häggman " UMTS Radio Network Simulation with Smart
Antennas" to be published in book Wireless Personal Communications, Kluwer Academic Publishers, 2000.

Boukalov Adrian, Sven-Gustav Häggman "System Aspects of Smart Antennas Technology in
Cellular Wireless Communications " (Invited) IEEE Radio and Wireless Conference (RAWCON 99),
Denver, Colorado, USA , August 1-4, 1999, pp. 17-22.

Boukalov Adrian, "Introduction to Smart Antennas Techniques and Algorithms" Workshop on
Smart Antennas Technology and Applications at RAWCON 99, 1st August 1999.

Boukalov Adrian, Sven-Gustav Häggman " System Aspects of Smart Antennas Technology in Wireless Communications" to appear in Journal IEEE Transaction in Microwave Theory and Techniques

Boukalov Adrian, "Integration of Smart Antennas into Wireless Network" (Invited paper), book Global Wireless Communications for World. Markets Research Centre's Business Briefing Series.Wireless Technology 2000.

A. Boukalov "Standardisation and System integration of Smart Antennas into Wireless Networks" ETSI/MESA meeting 18.09.2001

A. Boukalov, L. Halme, H. Zhang "Integrated space-time-frequency receiver design and performance study for emergency and safety broadband digital network" Wireless World Research Forum (WWRF) Book of Visions 2001, WG4 Spectrum, New Air Interfaces and Ad-hoc Networking.

A. Boukalov. Integrated Multi-User S-T receiver design for CDMA systems. Presentation at Smart Antennas Research Group at Stanford University on 16.02.2001.

A.Boukalov, A. Paulraj, S. Halme, H. Zhang "Multi-User space-time Receiver for Multiple Input Multiple Output WCDMA Systems with Smart Antennas" Accepted as oral presentation for VTC2002-Spring, Birmingham, Alabama

A. Boukalov, A. Paulraj, S. Halme "Joint estimationof of radio channel and its spatial-frequincies charaecteristics" (paper in preparation)

A.Boukalov, A. Paulraj, S. Halme, H. Zhang " Space-Frequency MIMO Reciever for WCDMA System" (paper in preparation)

A. Boukalov, I.Rahman "Study of SIMO and MIMO Urban Radio Channels with Raytracing Method in Space, Time and Frequency Domains" (paper in preparation)