Abstract
Virtual drive testing (VDT) with measured or ray tracing (RT) simulated channels requires the simplification of the channel to match the hardware specification of radio channel emulators. That is, reduction of the number of multipath components (MPC)s and adjustment of the arbitrary delays of the MPCs to the sampling grid of the radio channel emulator. In this paper, a fractional delay (FD) filter approximated by a general least square (GLS) finite impulse response (FIR) filter is used for band-limited interpolation to align the delay of the MPCs to the sampling grid of the radio channel emulator. A dominant power selection strategy is then employed to reduce the taps to match a given hardware specification. The GLS FIR method is shown to have superior performance in preservation of the channel frequency response (CFR) compared to rounding delays to the nearest integer multiple of the sampling time.
| Original language | English |
|---|---|
| Title of host publication | 2022 16th European Conference on Antenna and Propagation (EuCAP) |
| Publisher | IEEE |
| Publication date | 2022 |
| Article number | 9769382 |
| ISBN (Print) | 978-1-6654-1604-7 |
| ISBN (Electronic) | 978-88-31299-04-6 |
| DOIs | |
| Publication status | Published - 2022 |
| Event | 16th European Conference on Antennas and Propagation - Madrid, Madrid, Spain Duration: 27 Mar 2022 → 1 Jun 2022 Conference number: 16 https://www.eucap2022.org/ |
Conference
| Conference | 16th European Conference on Antennas and Propagation |
|---|---|
| Number | 16 |
| Location | Madrid |
| Country/Territory | Spain |
| City | Madrid |
| Period | 27/03/2022 → 01/06/2022 |
| Internet address |
Bibliographical note
Funding information:10.13039/501100003816-Huawei Technologies
Keywords
- Radio channel emulation
- radio channel modeling
- ray tracing
- virtual drive testing