Millimeter-wave measurements for 5G

Fifth generation (5G) wireless systems are in development. The high data rates targeted for these systems require wide-bandwidths that are not currently available at sub 6 GHz frequencies. The underutilized 28 GHz millimeter-wave spectrum is being considered for 5G cellular networks. Designing systems at these frequencies requires further characterization of building materials to understand propagation characteristics in built environments. By performing wideband measurements we show that the narrowband measurements of previous studies are likely to be affected by multipath effects leading to a source of inconsistency between reported results.