Why does 5G mmWave require more cells

Blocking due to physical obstacles will be one of the biggest challenges for 5G affecting significantly indoor propagation. This is due to the materials used for building construction[7]. Other physical objects that can reduce the propagation of 5G are tree leaves and human body parts[8].19 Eyl 2019

“Trees are cut down because they block 5G signals and, in addition to this, more space is required for new transmitter antennas.” Trees, buildings, vehicles and even rain can influence how 5G signals propagate.

mmWave doesn’t penetrate walls Most building materials, such as cement and brick, attenuate and reflect very high-frequency signals with a big enough loss you’re unlikely to receive a very useful signal moving from inside to outside.18 Ağu 2021