Mobile System Group Telecommunication laboratory Vitaliy Tykhomyrov - - PowerPoint PPT Presentation

Mobile System Group Telecommunication laboratory

Vitaliy Tykhomyrov

MIT department University of Jyväskylä Finland

Mobile System Group Mobile System Group

Professors T. Hämäläinen, J. Joutsensalo, and T. Ristaniemi

– Students:

• over 100 M.Sc. theses supervised
• 15 Doctoral dissertations supervised since 2003

– Publications:

• over 30 international refereed journal papers
• ca. 150 international refereed conference papers

– Projects:

• Tekes, Academy of Finland, NSN, Digia, Kilosoft

– International cooperation:

• University of California: QoS in Portable devices
• FRUCT seminars
• State University of Telecomm., St. Petersburg: QoS in Networking
• Beijing University of Posts and Telecommunications: Network resource

management

MSG’s Research Activities

All-IP All-IP All-IP DVB VoIP XML,... Access networks Users / devices Distribution, content mgmt/ adaptation Content services AAAC, DRM Content adaptation Client services Accounting Service mgmt

MSG’s Research areas

• Signal processing for wireless communication

–

Interference cancellation

–

Channel parameter estimation

• Radio resource management and network planning

–

UMTS, WCDMA, Utran LTE, WiMAX

• Quality of Service (QoS)

–

Revenue-based scheduling

–

PHY and MAC issues for 802.16 networks

–

VoIP, IPTV and VoD QoS issues

• Network management

–

Laboratory network offers services like IMS, IPTV

–

E2E network monitoring and management issues

Case: WINSE- project(NSN)

• The research topics of the project include:

–

WIMAX implementation in NS-2 simulator

–

Performance evaluation of the IEEE 802.16 ARQ mechanism

–

Optimal MAC PDU Size in IEEE 802.16

–

Impact Of Portable Device Restrictions On IEEE 802.16 Performance

–

Optimal PDU size study with QoS-enabled connections

–

Overhead study

–

Performance evaluation of the Hybrid ARQ (HARQ)

–

TDD/FDD/H-FDD study

– Scheduling & resource allocation

• Currently 3 PhD students, 2 MSc students are involved

Case: LaiLa and Imola projects

• Companies involved: Digita, Telia Sonera, Digia (SysOpenDigia), Kilosoft (WTS),

: Digita, Telia Sonera, Digia (SysOpenDigia), Kilosoft (WTS), VLP/Anvia VLP/Anvia

• The research topics of the Laila project included (ended 2008):

–

QoS Scheduling

–

IP Performance monitoring and management in heterogeneous access networks

–

Charging in heterogeneous access networks

–

Video and audio content adaptation

–

IPTV, VoD and VoIP are the main applications considered in above topics

• Imola project continues LaiLa’s actvities:

–

Management of the end user devices and new mobile services

–

Open IMS environment

–

Jyu wide pilot environment

• 4 PhD students, 6 MSc students and 2 BSc students are involved

Goal: IMS optimizes core business

Common functionalities include:

• Authentication
• Authorization
• Routing
• Roaming
• Charging
• Network interoperation
• Terminal configuration

…

Service A Service B

Fixed

Service n

…

Service A Service B

Mobile

Service n Standard interface (SIP/ISC) Horizontal supporting enablers: list management presence Service A Service B Service C

Seamless multi-access IMS

Service D Service

Contact details

Professor Timo Hämäläinen Timo Hämäläinen Department of Mathematical Information Technology P.O. Box 35 (Agora) FI-40014 University of Jyväskylä, Finland E-mail: timo.t.hamalainen@jyu.fi

• Tel. +358 14 260 3292
• Fax. +358 14 260 2545