| Popis: |
Time dispersion of the radio channel is an important characteristics in waveform and other system design of wireless communication links. In this TD we present delay spreads and maximum excess delays analysed using data from single directional propagation measurements at 140 GHz radio frequency in both outdoor and indoor environments. Since upper mm-wave radio links necessitate high antenna gains, we consider beam steered radio channel as the basis of our analysis, i.e., beam gains are multiplied with the measured propagation path gains prior to the analysis. Preliminary results show 1.5–11 ns median rms delay spreads and 23–110 ns median values of maximum excess delays, depending on the LOS/NLOS condition, environment, link distance, and used beam width. |
