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 Content Distribution, Users / devices Access networks services content mgmt/ adaptation AAAC, DRM All-IP DVB Accounting All-IP Client services VoIP All-IP Content adaptation XML,... 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 Horizontal Service C Service D supporting enablers: list management Service A Service B presence Service A Service B Service n Service A Service B Service n … … Service Standard interface (SIP/ISC) IMS Fixed Mobile Seamless multi-access Common functionalities include: • Authentication • Authorization • Routing • Roaming • Charging • Network interoperation • Terminal configuration

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