LiDAR-Aided Millimeter-Wave Range Extension Using a Passive Mirror Reflector

Passive reflectors mitigate millimeter-wave (mm-wave) link blockages by extending coverage to non-line-of-sight (NLoS) regions. However, their deployment often leads to irregular reflected beam patterns and coverage gaps. This results in rapid channel fluctuations and potential outages. In this paper we propose two LiDAR-aided link enhancement techniques to address these challenges. Leveraging user position information, we introduce a location-dependent link control strategy and a user selection technique to improve NLoS link reliability and coverage. Experimental results demonstrate that silver-coated mirror reflectors achieve comparable performance to silver reflectors and validate the efficacy of the proposed techniques in reducing outages and enhancing NLoS signal strength.