Abstract
Integrating Kirchhoff approximation (KA) and a ray-tracing (RT) algorithm, this study develops a new directional three-dimensional channel model for urban millimetre-wave small cells. The authors study the path loss, spatial correlation, coverage distance, and coherence length for line-of-sight (LOS), obstructed LOS, and non-LOS (NLOS) scenarios in urban areas. Exploiting physical optics and geometric optics solutions, closed-form expressions for spatial correlation are derived. It is deduced that LOS availability, frequency, and surface roughness scale highly impact spatial diversity. In addition, using antenna arrays of moderate gain at both sides of the link, even under NLOS conditions, a typical urban cell size of 200 m is achievable.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
