From the perspective of radiowave propagation, this technology involves new propagation behaviors for mobile communications since the height of transmitters (e.g., base stations) is transitioning to near ground levels for typical outdoor D2D uses in urban areas. Introductionĭevice-to-device (D2D) communication is increasingly being discussed as an emerging mobile technology and its importance is expanding as a solution to the challenge of increasing areal capacity, as well as supporting disaster situation communications. WhenĬompared with field measurements, the predictions are in agreement. “waveguide effect” parameter that is, higher building alleys provide better propagation environments. In addition, we consider the effect of building heights on path loss by incorporating an adjustable Parameters for the first and the second corners, based on the Uniform Geometrical Theory of Diffraction. Considering this, we developĪ path loss model encompassing 1-Turn and 2-Turn NLOS links with separate scattering and diffraction The 1-Turn NLOS has a single dominant propagation path from TX to RX. The 2-Turn NLOS has multiple propagation paths along the various street roads from TX to RX, whereas This can be explained by employing the idea that NLOS links: the 2-Turn NLOS has a wider delay spread.
Seoul City at 3.7 GHz, we observed distinctive power delay profile behaviors between 1-Turn and 2-Turn From wideband propagation channel measurements collected in Rectangular street grids to account for typical D2D (device-to-device) communication link situations in This paper presents a NLOS (non-line-of-sight) path loss model for low-height antenna links in
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