Distributed antenna systems with frequency reuse

Performance of distributed antenna systems (DASs) is investigated for high data rates transmission in high buildings. Downlink transmission is considered, neighbouring floors are grouped together and controlled by a central unit (CU). The spectrum is not reused in the floors controlled by the same CU, however it can be reused among floors belonging to different CUs. Therefore, co-channel interference occurs among CUs. Radio signals can propagate among floors in high buildings and reflections from a nearby buildings can have an effect on the performance. In this paper, the effect of the frequency reuse factor on the channel capacity performance is shown.