Resume

CURRICULUM VITAE

DAWID NOWAK
5 The Rise, Glasnevin, Dublin 9  Phone: 086 3951095  Email: dawid_nowak@yahoo.com
EDUCATION
2000-2005 PhD in School of Electronic Engineering at Dublin City University

1995-2000 MEng in Telecommunication Networks at Poznan University Technology, Poland

WORK EXPERIENCE
06/2005-to date Crevinn Teoranta, Dublin
LIST OF PUBLICATIONS
Dawid Nowak, John Murphy, and Philip Perry, "Bandwidth Allocation for Service Level Agreement Aware Ethernet Passive Optical Networks," in Proceedings of IEEE GLOBECOM, Dec.2004.

Dawid Nowak, John Murphy, and Philip Perry, "Adaptive Dynamic Bandwidth Allocation Algorithm for Ethernet PONs," in Proceedings of 30th European Conference on Optical Communication, Sept. 2004, vol. 3, pp. 740741.

Dawid Nowak, John Murphy, and Philip Perry, "A novel Service Level Agreement based algorithm for Differentiated Services enabled Ethernet PONs," in Proceedings of OptoElectronics and Communications Conference/International Conference on Optical Internet, 2004, vol. 1, pp.598599.

Dawid Nowak, John Murphy, and Philip Perry, "Bandwidth Scheduling Techniques for Differentiated Services Support in Ethernet Passive Opticacl Networks," in Proceedings of 4th International Symposium on Communication Systems, Networks and Digital Signal Processing, 2004, vol. 1, pp. 6770.

Dawid Nowak and Bartlomiej Klusek, "Analysis ofWaveband Connecting Probability in Hybrid Optical Networks," in Proceedings of 2nd IFIP-TC6 International Conference on Optical Communications and Networks, Oct. 2003.

Dawid Nowak, Bartlomiej Klusek, and Tommy Curran, "New Method for Calculating Probability of Waveband Connection in All Optical Networks," in Proceedings of IEI/IEE Telecommunications System Research Symposium, May 2003.

Bartlomiej Klusek, Dawid Nowak, and Tommy Curran, "Wavelength Assignment Algorithms in an OBS Node," in Proceedings of IEI/IEE Telecommunications System Research Symposium, May 2003.

Dawid Nowak and Tommy Curran, "Simulation of a Signalling Channel on Top of DiffServ Networks," in Proceedings of IEI/IEE Telecommunications System Research Symposium, Nov. 2001.






THESIS ABSTRACT
Fiber based access networks can deliver performance that can sustain constant demands for highspeed connection and one of the new technologies that has emerged in recent years is Ethernet Passive Optical Networks. The key features of this approach is the simplicity of the architecture and compatibility with existing Ethernet based local area networks. To make Ethernet Passive Optical
Networks (EPONs) a fully functional part of the tele- communication system support for the concept of is mandatory. Much research has been done on the optimal bandwidth allocation algorithms that would have the capability of supporting Differentiated Services (DiffServ) in EPONs. This thesis proposes that the access control mechanism should be centralized and performed by the Optical Line Terminator. It is shown that this approach can give greater flexibility to adjust to changing traffic conditions, can simplify the structure of the Optical Network Units and can allow the easy adoption of Service Level Agreements. This thesis introduces a unique EPON simulator that allows the testing various types of bandwidth allocation algorithms It is possible to evaluate the allocation mechanism under different traffic conditions and with network configurations that closely resemble
real systems. Two new algorithms are presented and they are based on a paradigm of centralized access control and support for DiffServ. The performance of proposed algorithms was simulated and improved results compared to other algorithms were obtained.