Two-Level Spatial Multiplexing using Hybrid Beamforming Antenna Arrays for mmWave Communications
Title | Two-Level Spatial Multiplexing using Hybrid Beamforming Antenna Arrays for mmWave Communications |
Publication Type | Journal Article |
Year of Publication | 2016 |
Authors | Song, X., Babu N., Rave W., Majhi S., & Fettweis G. |
Published in | CoRR |
Volume | abs/1607.08737 |
Abstract | In this work, we consider a two-level hierarchical MIMO antenna array system, where each antenna of the upper level is made up of a subarray on the lower one. The concept of spatial multiplexing is applied twice in this situation: Firstly, the spatial multiplexing of a Line-of-Sight (LoS) MIMO system is exploited. It is based on appropriate (sub-)array distances and achieves multiplexing gain due to phase differences among the signals at the receive (sub-)arrays. Secondly, one or more additional reflected paths of different angles (separated from the LoS path by different spatial beams at the subarrays) are used to exploit spatial multiplexing between paths. |
URL | http://www.icsi.berkeley.edu/pubs/initiatives/twolevelspatialmultiplexing16.pdf |
ICSI Research Group | Research Initiatives |