Spatial multiplexing for 5G wireless communications

Increasing demand for higher data rates and channel capacity is driving the need to use the RF spectrum mora efficiently. Asa result, 5G wireless systems will use mmWave frequency bands to take advantage of the increased bandwidth. The higher operating frequencies enable large-scale antenna arrays, which can be used to mitigate severe propagation loss in the mmVtove band, Large arrays can also be used to implement a Ml MO system in which unique signals can be transmitted from different antenna elements in the array. MIMO systems enable spatial multiplexing techniques that can be used to improve data throughput, The core idea of spatial multiplexing is to create multiple subchannels in scatterer-rich environments so that multiple data streams can be transmitted and recovered independently, This is achieved by applying a set of Coding and combining weights derived the channel matri∗. This concept is discussed first with an all-digital solution based on preceding in a Ml MO-OFDM system that uses a spatial channel model, This channel model incorporates array pattern information to improve model fidelity. Because B © 2018 Horizon House. All rights reserved.