Page 1 Prof. Dr.-Ing. habil. Andreas Mitschele-Thiel Integrated Communication Systems Group Investigation and Comparison of State-of-the-Art Approaches in Underwater Localization Supervisor: Dr. Oleksandr Artemenko Description: Underwater Networks became very interesting for research in the last time. Tasks –Literature study on robust algorithms for underwater localization –Selection of two approaches for the comparison –Simulation of the selected approaches –Extension of the approaches with the improvement scheme designed by Mr. Artemenko (optional) –Simulation of the improved scheme (optional) References [1] Diba Mirza, Curt Schurgers, and Ryan Kastner Real-time collaborative tracking for underwater networked systems. In Proceedings of the Seventh ACM International Conference on Underwater Networks and Systems (WUWNet '12). ACM [2] Diba Mirza, Curt Schurgers, Collaborative tracking in mobile underwater networks, Proceedings of the Fourth ACM International Workshop on UnderWater Networks, p.1-8, November 03-03, 2009, Berkeley, California [3] Artemenko, O.; Mitschele-Thiel, A.; Schorcht, G., "Improvement of localization results in wireless networks using estimation of distances between unknown nodes: Simulation and real testbed evaluation," Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on, vol., no., pp.693,697, 9-12 Sept. 2012

Page 2 Prof. Dr.-Ing. habil. Andreas Mitschele-Thiel Integrated Communication Systems Group Robust Reference Selection Algorithms for Localization in Wireless Networks Supervisor: Dr. Oleksandr Artemenko Description: In case of redundant reference data (anchors) available for the localization, smart selection strategy can be applied to provide more accurate localization results. The main idea of this project is to compare different approaches using measurement data collected from UAV missions. Tasks –Literature study on approaches for anchor selection –Selection of two approaches for the implementation (optional) References [1] Artemenko, O.; Simon, T.; Mitschele-Thiel, A.; Schulz, D.; Ta, R.S., "Comparison of Anchor Selection algorithms for improvement of position estimation during the Wi-Fi localization process in disaster scenario," Local Computer Networks (LCN), 2012 IEEE 37th Conference on, vol., no., pp.44,49, Oct. 2012

Page 3 Prof. Dr.-Ing. habil. Andreas Mitschele-Thiel Integrated Communication Systems Group Study on routing protocols in cognitive radio ad- hoc networks (CRAHNs) Supervisor: Mehdi Harounabadi Description: Routing in CRAHNs is usually a cross layer approach which can improve the routing performance providing spectrum information on the higher layers Tasks –Literature study on routing protocols in wireless ad-hoc networks –Study on the existing routing protocols in cognitive radio ad-hoc networks –Finding the differences between routing in wireless ad-hoc networks and CRAHNs –Study on new trends of routing in CRAHNs –Preparing a survey paper (optional) References –IEEE digital library

Page 4 Prof. Dr.-Ing. habil. Andreas Mitschele-Thiel Integrated Communication Systems Group Model Traffic and Networks for Next Generation Applications (math intensive) Show future strategies to route flows through a network (according to paper)

Page 5 Prof. Dr.-Ing. habil. Andreas Mitschele-Thiel Integrated Communication Systems Group Automatically Switched Optical Networks Research on features, challenges and open problems of ASONs

Page 6 Prof. Dr.-Ing. habil. Andreas Mitschele-Thiel Integrated Communication Systems Group Resource Allocation in Optical Transfer Networks Find out how resources (wavelength for WDM) are mapped to connections today Show in which way MPLS/MPλS works Router λ 1 λ 2 λ3λ3 λ 4

Page 7 Prof. Dr.-Ing. habil. Andreas Mitschele-Thiel Integrated Communication Systems Group Investigation of Possibilities to Model Flow Setup Times in OpenFlow Enabled Networks Model –Traffic and flow setup costs –Synchronisation costs –Switch reassignment costs

Page 8 Prof. Dr.-Ing. habil. Andreas Mitschele-Thiel Integrated Communication Systems Group Distributed Determination of Equilibria in Non- cooperative Games Non-cooperative game: several entities compete on resources Agents would like to have as much resources as possible (increase their utility function) Only limited scope of network is known Maximise utility of each agent

Page 9 Prof. Dr.-Ing. habil. Andreas Mitschele-Thiel Integrated Communication Systems Group Investigation of Methods for Distributed Geographical Data Management Find node that contains data of certain geographical area according to provided coordinates