Performance evaluation of the isolated mmWave small cell

In this paper we introduce the performance evaluation of the isolated millimeter-wave (mmWave) small cell. The potential performance of the mmWave small cells is evaluated on the base of PHY layer technique with parameters similar to IEEE 802.11ad standard. Two important practical tasks are addressed in this paper: the efficiency of mmWave spectrum utilization and the small cell optimal coverage. Two approaches for spectrum utilization are considered: frequency reuse-1 (each cell sector operates in three channels) and frequency reuse-3 (each of three cell sectors operates in only one channel). We start from the comparison of these scenarios spectral efficiency. At the next step the interference mitigation techniques are applied in order to improve the system performance for both scenarios. Also we discuss the mmWave small cell coverage and its limits due to the regulator requirements. The impact of small cell radius on MU-MIMO mode performance is addressed and evaluated. Finally, the discussion and recommendations on the small cell size, frequency reuse scenario and interference mitigation techniques are provided.