Research Article
Over-the-Air Testing of Cognitive Radio Nodes in a Virtual Electromagnetic Environment
Table 2
Summary of the OTA test facilities in Ilmenau.
| | Test facility | Chamber type and dimension | Hardware support (available antennas/probes) | Channel emulation | Frequency range | Other features |
| | FORTE [40] | Anechoic () | (physical channels) | Time domain processing similar to tap delay line (32 taps per physical channel) and frequency domain processing (unlimited fading paths per channel). | 350 MHz to 3 GHz (for channels up to 18 GHz), signal BW 80 MHz | Noncommercial, diverse applications including satellite and terrestrial communications | | VISTA [41] | Anechoic (), max. DuT | Under research | Dynamically evolving geometry-based stochastic channel model | 70 MHz to 6 GHz | Noncommercial, combining EMC measurements with OTA testing and vehicular channel emulation |
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