  Signal occlusion by building blockages is a double-edged sword for the
performance of millimeter-wave (mmW) communication networks. Buildings may
dominantly attenuate the useful signals, especially when mmW base stations
(BSs) are sparsely deployed compared to the building density. In the opposite
BS deployment, buildings can block the undesired interference. To enjoy only
the benefit, we propose a building-aware association scheme that adjusts the
directional BS association bias of the user equipments (UEs), based on a given
building density and the concentration of UE locations around the buildings.
The association of each BS can thereby be biased: (i) toward the UEs located
against buildings for avoiding interference to other UEs; or (ii) toward the
UEs providing their maximum reference signal received powers (RSRPs). The
proposed association scheme is optimized to maximize the downlink average data
rate derived by stochastic geometry. Its effectiveness is validated by
simulation using real building statistics.
