articleIEEE Communications MagazineDec 1, 2014Closed access

MIMO Precoding and Combining Solutions for Millimeter-Wave Systems

AAAhmed AlkhateebJMJianhua MoNGNuria González‐PrelcicRWRobert W. Heath

The University of Texas at Austin · Universidade de Vigo

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Abstract

Millimeter-wave communication is one way to alleviate the spectrum gridlock at lower frequencies while simultaneously providing high-bandwidth communication channels. MmWave makes use of MIMO through large antenna arrays at both the base station and the mobile station to provide sufficient received signal power. This article explains how beamforming and precoding are different in MIMO mmWave systems than in their lower-frequency counterparts, due to different hardware constraints and channel characteristics. Two potential architectures are reviewed: hybrid analog/digital precoding/combining and combining with low-resolution analog- to-digital converters. The potential gains and design challenges for these…

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Topics & keywords

Topics
Keywords
  • Precoding
  • Computer science
  • MIMO
  • Beamforming
  • Electronic engineering
  • Extremely high frequency
  • Base station
  • 3G MIMO
UN Sustainable Development Goals
  • Affordable and clean energy
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