JT-CoMP to Improve Coverage of 5 G Mmwave Networks in UMa and UMi Environments

The adoption of millimeter-wave (mmWave) frequencies offers a promising solution for exploiting underused spectrum and achieving very high transmission rates. However, these frequencies face major challenges, including higher signal loss and increased sensitivity to blocking. To overcome these limitations, the Joint Transmission Coordinated Multi-Point (JT-CoMP) technique improves communication quality, particularly for users located at cell boundaries, thereby enhancing network reliability. This article focuses on improving the coverage of 5 G mmWave networks via JT-CoMP in Urban Micro (UMi)-Street Canyon and Urban Macro (UMa) environments. It incorporates parameters often overlooked in previous studies, such as line-of-sight (LOS) and non-line-of-sight (NLOS) configurations, including Path Loss (PL), LOS probability and Shadow Fading (SF) models, specifically tailored to mmWave frequencies in these environments. In addition, the analysis takes into account key factors such as three-dimensional distances, BreakPoint (BP) distances, Inter-Site Distances (ISD), as well as Inter-Cell Interference (ICI), providing a comprehensive assessment of 5 G mmWave networks performance in dense UMi and UMa environments.