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M. Lerch, S. Caban, E. Zöchmann, M. Rupp:
"Quantifying the Repeatability of Wireless Channels by Quantized Channel State Information";
Vortrag: IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM 2016), Rio de Janeiro, Brazil; 10.07.2016 - 13.07.2016; in: "IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM 2016)", (2016).

Repeatability is the prerequisite for scientific evaluation of wireless measurements. However, in real-world scenarios, the channel always slightly changes with time as, for example, trees move in the wind. In this paper, we propose a methodology that uses quantized channel state information and a technique similar to non-substractive SNR-dithering to quantify the repeatablility of wireless channels. Thereby, we introduce a new metric that allows for a comparison of different setups and scenarios in terms of repeatability. In a measurement campaign, we compare (1) a directional link to (2) an outdoor to indoor urban scenario with a fixed receiver and (3) the same scenario with the receiver moving in a circle, thereby experiencing the same high speed channel again and again.

http://dx.doi.org/10.1109/SAM.2016.7569702

http://publik.tuwien.ac.at/files/PubDat_250333.pdf

Projektleitung Christoph Mecklenbräuker:
Christian Doppler Lab "Funktechnologien für nachhaltige Mobilität"