A methodology for repeatable, off-line, closed-loop wireless communication system measurements at very high velocities of up to 560 km/h

The impact of high velocities on the physical layer downlink performance of mobile radio communication systems is generally measured by placing a receiver in a car, train, or similar vehicle. While these so-called drive test measurements produce valuable results, they lack the flexibility, repeatability, and controllability usually required for initial testing of ideas and algorithms. In this paper, we present a methodology that allows for repeat-able, closed-loop, off-line-processed measurements at velocities up to 560 km/h (350 mph). The proposed laboratory set-up allows for precise controlling of velocity and average signal-to-noise ratio. For increased convenience during initial testing, the apparatus can be even used indoors.