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V. Shivaldova, A. Winkelbauer, C. Mecklenbräuker:
"Vehicular Link Performance: From Real-World Experiments to Reliability Models and Performance Analysis";
Talk: IC1004 8th MC & Scientific Meeting, Ghent, Belgium (invited); 09-26-2013 - 09-27-2013; in: "COST IC1004 8th MC & Scientific Meeting", (2013), 9 pages.

Aiming at improvements in traffic safety and ef- ficiency, dependable infrastructure-to-vehicle (V2I) communi- cation links for intelligent transportation systems require an adequate deployment of roadside units (RSU). However, eval- uating the dependence of key system performance indicators on RSU deployment conditions through field tests is expensive, especially for scenarios with large numbers of test vehicles. Therefore, numerous studies have been performed using net- work simulators that abstract the physical layer details. In this context we propose a range-dependent hidden Markov model (HMM), whose parameters are estimated from real-world IEEE 802.11p V2I measurements. The resulting packet error model is computationally inexpensive and incorporates the physical layer characteristics and propagation effects of an authentic highway environment with realistic vehicular traffic patterns. The influence of data rates, packet lengths, operational modes, and RSU antenna characteristics on coverage range and throughput is investigated based on model-generated simulation traces. We advertise this range-dependent HMM for future use in system- level performance evaluations of intelligent transportation sys- tems. To this end, the model parameters are openly released to the research community.

http://publik.tuwien.ac.at/files/PubDat_219888.pdf