Bachelor Thesis (Studienarbeit / Großer Beleg) or Research Project
LEO Satellite Supported Dissemination of Awareness Messages in V2X Networks
Status: attic
In order to provide low-latency high-throughput Internet access all over the world, companies like SpaceX, Amazon, and OneWeb currently deploy and maintain Low Earth Orbit (LEO) satellite constellations. Thousands of small satellites orbit Earth at an altitude of roughly 500km. Such a system is perfect for supporting vehicular networks by means of providing Internet access even in regions in which cellular communication technologies like LTE or 5G are not available. Further, traditional vehicular networks, based on IEEE 802.11p WLAN communication, suffer from communication outages brought about by radio obstacles. Such radio obstacles are particularly prevalent in cities, in the form of buildings. These communication outages complicate the reception of cooperative awareness messages broadcasted via IEEE 802.11p. For evaluating LEO satellite supported vehicular networks, the simulator space_Veins is currently developed.
Goals of the thesis
The goal of this thesis is to investigate the potential of supporting traditional vehicular networks by means of LEO satellites. LEO satellites could be used to relay cooperative awareness messages such that these messages can be received by vehicles which have no direct line-of-sight link to the originator of the cooperative awareness message. Additional techniques like bloom filters [3], for efficiently encoding neighbor information, or clustering, for reducing the number of Vehicle-to-Satellite (V2S) links, might further improve traditional vehicular networks. A detailed performance evaluation which will be based on the simulation frameworks space_Veins and INET has to be conducted such that possible improvements become visible.
Possible milestones are as follows:
- Detailed investigation of LEO satellite communication and learning the simulation environment
- Identifying scenarios in which vehicular communication suffers and can be supported by LEO satellites.
- Design of a communication architecture and protocol involving vehicles and satellites that allows an improved dissemination of cooperative awareness messages.
- Prototype implementation of the developed communication architecture using space_Veins and INET
- Detailed evaluation of the communication architecture by conducting simulations.
Keywords
C++, Network Simulation, Vehicular Networking, LEO Satellite
Literature
[1] O. Kodheli et al., “Satellite Communications in the New Space Era: A Survey and Future Challenges,” IEEE Communications Surveys & Tutorials, vol. 23, no. 1, pp. 70–109, 2021. https://doi.org/10.1109/COMST.2020.3028247
[2] Mario Franke, Florian Klingler and Christoph Sommer, “Poster: Simulating Hybrid LEO Satellite and V2X Networks,” Proceedings of 13th IEEE Vehicular Networking Conference (VNC 2021), November 2021. (to appear)
https://www.cms-labs.org/bib/franke2021simulating/
[3] F. Klingler, R. Cohen, C. Sommer and F. Dressler, “Bloom Hopping: Bloom Filter Based 2-Hop Neighbor Management in VANETs,” in IEEE Transactions on Mobile Computing, vol. 18, no. 3, pp. 534-545, 1 March 2019, https://doi.org/10.1109/TMC.2018.2840123.