Conference, Journal and Workshop Papers


2001

Providing IP QoS over GEO Satellite Systems Using MPLS Örs T. and Rosenberg C.
International Journal of Satellite Communications, Vol.9, Issue 5, pp.443-461, 2001.
ATM over GEO Broadband Satellite Systems Rosenberg C., Ors T., and McCaughan D.
Accepted to Networking and Information Systems (NIS) Journal, 2001.

2000

An Overview of Activities on Wireless Networks in the European Project COST 257 Burakowski W. , Krieger U., Leibnitz K., Beben A., Meo M., Ors T., Garcia-Vidal J. and Fiedler M.
IFIP Conference On Personal Wireless Communications, Gdansk, Poland, 14-15 September 2000.
MPLS over next generation satellite networks Rosenberg C. and Örs T.
In the Broadband Satellite Networks mini-conference, Networking 2000, Paris, France, 14-19 May 2000.
Network Architecture and Performance Evaluation of TCP/IP and ATM over Satellite Chotikapong Y., Sun Z., Örs T. and Evans B. G.
In the Proceedings of the 18th AIAA International Communication Satellite Systems Conference and Exhibit, Oakland, CA, U.S.A., 10-14 April 2000.

1999

A network architecture to interconnect Local Area Networks using non-GEO satellites Örs T., Annoni M. and Paxal V.
COST 252/253/255 Joint Workshop, 19-20th May 1999, Toulouse, France.
Traffic Characterization, Routing and Security Issues in High Speed Networks Interconnected Through LEO Constellations Pavlidou F.N., Annoni M., Aracil J., Cruickshank H., Franck L., Örs T. and Papapetrou E.
COST 252/253/255 Joint Workshop, 19-20th May 1999, Toulouse, France.

1998

ATM-over-Satellite demonstration of broadband network interconnection Sun Z., Örs T., and Evans B. G.
Computer Communications Journal, Vol.21 Issue 12, pp. 1090-1101, Elsevier Science, 25th August 1998.
Multiple Access for ATM-based Multiservice Satellite Networks Werner M., Bostic J., Örs T., Bischl H. and Evans B. G.
Broadband Access and Network Management, pp 290-297, ISBN 9-05-199400-1, I O S Press, Proceedings of European Conference on Networks and Optical Communications, Manchester, England, June 23-25 1998.
Analysis of a MAC protocol to guarantee QoS for ATM over satellite Örs T., Sun Z., and Evans B. G.
IEEE ICC''98, pp 1420-1424, ISBN:0-78-034788-9, Atlanta-Georgia, USA, 6-11 June 1998.
Analysis of an Adaptive Random/Reservation MAC Protocols for ATM over Satellite Örs T., Sun Z., and Evans B. G.
IEEE VTC''98 ,pp.1523-1527, ISBN:0-78-034320-4 ,Ottawa, Canada, May 18-21 1998.
Multiple access protocols for ATM over low earth orbit satellites Bostic J., Örs T., Werner M., Bischl H. and Evans B. G.
1st Joint COST 252/259 Workshop, pp.77-87, Bradford-UK, 21-22 April 1998.
An Adaptive Random-Reservation MAC Protocol to Guarantee QoS for ATM over Satellite Örs T., Sun Z., and Evans B. G.
Broadband Communications: The future of telecommunications (IFIP TC6/WG6.2 Fourth International Conference on Broadband Communications, Stuttgart-Germany, 1-3 April), pp. 107-119, ISBN 0-412-84410-9, Chapman and Hall, London, 1998.
A MAC Protocol for ATM over Satellite Örs T., Sun Z., and Evans B. G.
Proceedings of Sixth IEE Conference on Telecommunications, pp. 185-190, IEE Conference Publication no. 451, ISBN 0-85296-700-4, Edinburgh-UK, 29 March-1 April 1998.

1997

TCP Throughput Measurements within Heterogeneous ATM Local Area Networks Andrikopoulos I., Örs T., Matijasevic M., Leitold H. and Posch R.
ATM Networks: Performance Modelling and Analysis , Volume III, ISBN 0-412-809702, pp 447-467, Chapman and Hall, London.
ATM over VSAT Networks using traditional Bent-Pipe or On-Board Processing Satellites Örs T., Hadjitheodosiou M. H., Sun Z. and Evans B.G.
ATM Networks: Performance modelling and analysis ,Volume III, ISBN 0-412-809702, pp 321-341, Chapman and Hall, London. A Meshed VSAT Satellite Architecture using an On-Board ATM Switch Örs T., Sun Z., and Evans B. G.
IEEE International Performance Computing and Communication Conference, Tempe/Phoenix, Arizona, pp 208-214, ISBN:0-78-033874-X, 5-7 February 1997. 

1996

Implementation of ATM over Satellite for Broadband Services Z.Sun, Örs T. and Evans B. G.
IEE Colloquium on ATM over Satellite, London, UK, 27 November 1996.
An Adaptive Congestion Control Scheme for ATM Networks using Advanced Buffer Management Örs T. and Jones S. P. W.
IEEE International Conference on Communication Systems, Singapore, 25-29 November 1996
Interconnection of Broadband Islands via Satellite - Experiments on the Race II Catalyst project Sun Z., Örs T. and Evans B. G.
Transport Protocols for High Speed Broadband Networks Workshop at Globecom 96, 22 November 1996.
Throughput Measurements for TCP/IP over AAL5 in ATM LANs Andrikopoulos I., Örs T. and Jones S. P. W.
UK Performance Engineering Workshop, Edinburgh, September 1996.
Congestion Control for ABR Services in ATM LANs Örs T. and Jones S. P. W.
Eighth IEEE Workshop on Local and Metropolitan Area Networks, Potsdam-Germany, 25-28 August 1996.
TCP/IP Throughput Performance Evaluation for ATM Local Area Networks Andrikopoulos I., Örs T., Matijasevic M., Leitold H., Jones S. P. W. and Posch R.
Fourth IFIP Workshop on Performance Modelling and Evaluation of ATM Networks, Ilkley, July 1996. 
ATM Networking with VSATs Örs T., Sun Z. and Jones S.P.W.
Fourth IFIP Workshop on Performance Modelling and Evaluation of ATM Networks, Ilkley, July 1996 
Traffic Management for ATM Local Area Networks using a Combined Preventive/Reactive Control Mechanism Örs T. and Jones S. P. W.
International Conference on Telecommunications, pp. 25-31, Istanbul, Turkey, April 1996. Abstract | gzipped Postscript (115K)
1995 Performance Optimization of ATM Input Control using Multiple Leaky Buckets Örs T. and Jones S. P. W.
Third IFIP Workshop on Performance Modelling and Evaluation of ATM Networks, Ilkley, July 1995
Congestion Control for ATM LANs using Reactive and Preventive Control
Örs T. and Jones S. P. W.
Second Communication Network Symposium, pp. 195-198, Manchester, July 1995.

Award Winning Papers


A Multiple Access Protocol for the Global Mobile Office
Örs T.
1998 Inmarsat Prize

Patents


MPLS over Multiple Access Segments Örs T., Cable J. and Rosenberg C.
December 1999, Nortel Networks.

Acknowledgements


Satellite Network Management Systems: More Power And Precision Peter Brown
Via Satellite Magazine, 2002
Modelling Mobile Multimedia Services Jefferies N., Munro A., Irvine J.M. and Hope S.
IEE Electronics & Communication Engineering Journal, Vol.12, No6, December 2000.

Other Presentations and Technical Reports


Modelling Satellite Networks Panel Invited Panelist , OPNETWORK 2000, Washington, DC, USA, 31st August 2000.
COST Action 253 Service Efficient Network Interconnection via Satellite Final Report Maral G., Ferro E., Pavlidu F.N., Ors T., et al , July 2000.
A MAC Scheme for ATM over Satellite to Provide QoS Örs T.
COST 257 Mid-Term Seminar, ISBN: 972-98084-0-6, Vilamoura, Portugal, 21-22 January 1999.
Invited speaker to ATM-Multimedia group of School of Computer Science, University of Leeds, 9th December 1998.
An overview of future satellite communication options for LAN interconnection Örs T., Sammut T., Wood L. and Evans B. G.
3rd COST 253 Management Committee Meeting, TD(98)004 , Brussels, Belgium, 27th March 1998
An Overview to Source Modeling Örs T., Sun Z. and Evans B. G.
2nd COST 253 Management Committee Meeting, TD(98)001, Bradford, UK, 8-9 January 1998
Performance Evaluation of a MAC Protocol for ATM over Satellite Örs T. and Evans B. G.
4th COST 257 Management Committee Meeting, TD(97)053, Dubrovnik, Croatia, 21-23 September 1997
A presentation of BONeS DESIGNER and it''s use for ATM simulation Örs T.
ATM Club Meeting, University of Surrey, 1996

Ph.D. Thesis - Traffic and Congestion Control for ATM over Satellite to provide QoS

University of Surrey, December 1998

M.Sc.Thesis - An Investigation of the Leaky Bucket for Preventive Control in ATM Networks

University of Surrey, September 1994