Enhancement Indoor mmWave Coverage Using Passive Reflector for NLOS Scenario

Millimeter wave (mmWave) coverage is relatively limited due to high path loss (PL), that makes radio frequency planning difficult, especially for the non-line-of-sight (NLOS) scenarios. In this work, we are looking to improve mmWave signal coverage in NLOS indoor scenario using passive reflectors. Measurements have been performed in L-shaped hallway using a vector network analyzer (VNA) and the path loss is evaluated with and without reflector. Experimental results show that in the presence of the passive reflector, the path loss can be reduced up to 24 dB. This type of configuration could be an economical solution to expand the mmWave coverage area. Moreover, a study is provided to compare the path loss when the reflector is placed horizontally to the path loss obtained when the reflector was placed vertically.