2025

A Novel Location and Attitude Determination System for High-Speed Martian Tumbleweed Rovers Ors Tolga, Kovithal Abhimanyu,Holthuijsen Tim , Moretti William,Rothenbuchner Julian , Global Space Exploration Conference, New Delhi, India, May 9, 2025

2024

Towards comprehensive Location and Attitude Determination for a rolling, wind-driven Mars Rover, Holthuijsen, T., Moretti, W., Dhyr, M., Kovithal, A., Ors, T., & Rothenbuchner, J. ,IAC, Milan, Italy, October 16, 2024
Towards a Location and Attitude Determination for a rolling, wind-driven Mars rover Holthuijsen, T., Moretti, W., Dhyr, M., Kovithal, A., Ors, T., & Rothenbuchner, J., VIIth Space Resource Conference, Krakow, Poland, May 24, 2024

2023

Space-based Solutions for Smart Cities Timmermans R., Örs T. et al, IAC, Baku, Azerbaijan, October 4, 2023

2018

Impact of using eHealth tools to extend health services to rural areas of Nigeria: protocol for a mixed-method, non-randomised cluster trial Ebenso B., Örs T. et al
, BMJ Open, Oct 10, 2018
How can digital health technologies be implemented to enable health systems to increase universal access to Primary Health Care (PHC) services in resource-limited settings? Insights from Nigeria Ebenso B., Örs T. et al, 5th Global Symposium on Health System Research: Advancing health systems for all in the SDG era, Oct 1, 2018

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 Ors 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 Ors 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., Ors 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., Ors 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., Ors 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 Ors 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 Ors 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., Ors 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 Ors 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 Ors 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., Ors 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 Ors 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 Ors 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, Ors 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 Ors 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., Ors 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., Ors T. and Jones S. P. W.
UK Performance Engineering Workshop, Edinburgh, September 1996.
Congestion Control for ABR Services in ATM LANs Ors 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., Ors 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 Ors 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 Ors T. and Jones S. P. W.
International Conference on Telecommunications, pp. 25-31, Istanbul, Turkey, April 1996. 1995 Performance Optimization of ATM Input Control using Multiple Leaky Buckets Ors T. and Jones S. P. W.
Third IFIP Workshop on Performance Modelling and Evaluation of ATM Networks, Ilkley, July 1995Congestion Control for ATM LANs using Reactive and Preventive Control Ors T. and Jones S. P. W., Second Communication Network Symposium, pp. 195-198, Manchester, July 1995.

Invited speaker to ATM-Multimedia group of School of Computer Science, University of Leeds, 9th December 1998.