Performance analysis with dynamic beam control using millimeter-wave band on 5G mobile communications

Abstract

In order to accommodate the ever growing demand of data traffic in future mobile networks, the millimeter-wave frequency band (30-300GHz) is considered as a for beyond 4G networks. However, unlike the conventional sub-3GHz band, the propagation characteristic of millimeter-wave band is poorly propagated toward non-line-of-sight regions. To compensate the loss caused by poor propagation in millimeterwave band, and utilize the band more efficiently beamforming has considered as a key solution with massive antenna structure (MAS) and spatial division multiple access (SDMA) technologies. In MAS with beamforming, due to the large number of antenna operating very close to each other, yields to a new issue known as inter-beam interference should be significantly researched. In order to solve this issue we propose a dynamic beam control scheme for MAS. Our simulation results shows that the proposed scheme reduces the inter-beam interference and hence increases the overall network capacity.