I am working as a post-doctoral researcher in the Department of Communications and Networking of Aalto University.
Contact information
Office: SE327 Phone: +358 50 400 6184 Fax: +358 9 4702 2474 E-mail: nicklas . beijar (at) aalto . fi Address: Nicklas Beijar
Aalto University, Department of communications and networking
P.O.Box 13000
00076 Aalto
FINLANDContact information can also be found on my Aalto People page.
Education
Doctor of Science (in Technology) Aalto University School of Science and Technology Dec. 2010
- Doctoral dissertation: Distributed Resource Discovery: Architectures and Applications in Mobile Networks.
- Major: Telecommunication Technology, minor: Interactive Digital Media.
Licentiate of Science (in Technology) Helsinki University of Technology April 2004
- Licentiate thesis: Telephony Routing with Support for Number Portability in Interconnected Circuit and Packet Switched Networks
- Major: Telecommunication Technology, minor: Interactive Digital Media.
Master of Science (in Technology) Helsinki University of Technology Feb. 2002
- Master's thesis: Distribution of Numbering Information in Interconnected Circuit and Packet Switched Networks
- Major: Telecommunication Technology, minor: Interactive Digital Media.
Interest area and expertise
My topics of interest include the following:
- Future Internet routing architectures
- Evolution of NATs and Firewalls
- Distributed search algorithms based on overlay networks
- Mobile peer-to-peer
- Routing, service discovery and clustering in mobile ad-hoc networks (MANETs)
- IP telephony signalling and routing, SIP, TRIP and ENUM
- Interoperability in routing, addressing and number portability between circuit-switched and IP telephony networks
Highlights
I have participated in the development of the following technologies:
- The Customer Edge Switching concept and the Customer Edge Traversal Protocol
- The Zone Indexing, the Direct Index and the IPIC overlay networks
- The PongSIM simulator
- The CTRIP protocol
List of publications
Current research project
I am currently working in the European Celtic MEVICO project.
The task of our research group is to develop Customer Edge Switching (CES) technology and, in particular, to apply it to the Evolved Packet System (EPS) in the System Architecture Evolution (SAE). Specifically, we are enhancing the CES concept with the Customer Edge Traversal Protocol (CETP), Application Layer Gateways (ALGs), mobility solutions, policy control and identity management. We also perform protocol compatibility testing.
Past research projects
June 2009 - Dec. 2010 Future Internet SHOK Development of the Customer Edge Switching (CES) concept. Prototyping. May 2007 - Project DECICOM Development of distributed search algorithms and indexing strategies, especially aimed for mobile peer-to-peer. Application and scalability study of P2P-SIP. Based on the results of user studies developement of group management for peer-to-peer networks. Research includes prototyping, simulation, mathematical analysis and user trials. Oct. 2004 - Apr. 2007 Project MobileP2P Feasibility study, including technical evaluation and user studies, of peer-to-peer based applications in the Internet Multimedia Subsystem (IMS). Development of prototype for using peer-to-peer in cellular networks. The prototype includes a Symbian application and the supporting network elements. Jan. 2003 - Dec. 2005 Project MobileMAN Development of clustering algorithms for Ad Hoc networks in order to provide efficient routing and service discovery. Development of routing and service discovery algorithms. Feb. 2002 - Dec. 2002 Project INTERO Design of solutions for providing number portability between the circuit switched and IP telephony networks. Continued development of the CTRIP protocol. Licentiate thesis. Aug. 2000 - Jan. 2002 Project IMELIO Design of telephony routing protocol, named CTRIP, for interconnected circuit switched and IP telephony network. Design of extensions to the TRIP protocol. Prototype implementation of the TRIP protocol. Master's thesis. Apr. 1998 - Sep. 2000 Project IPANA Comparison of the SIP and H.323 protocols (special assignment).
Current teaching (Fall 2012)
Currently I have the following teaching responsibilities:
- S-38.2121 Routing in Telecommunication Networks, lecturer, teacher-in-charge
- B.Sc. seminar, instructor
- S-38.3138 Networking Technology, special assignment
- Instructor for Master's theses
- Tutor for new students during the first 3 years
Past teaching