Use of 1-bit digital-to-analogue converters in massive MIMO systems

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Massive multiple-input multiple-output (MIMO) systems are being proposed for next generation broadband wireless systems. However, as the complexity of implementation grows with the number of antenna elements, their feasibility is a challenging task. Consider very low complexity, 1-bit digital-to-analogue converters (DACs) for the downlink of massive MIMO systems. The impact of the resultant severe non-linear distortion effects is analysed when a low-complexity maximum ratio transmission technique is employed for user separation. The non-linear distortion levels decrease with the number of transmit antennas allowing good performance, even with 1-bit DACs are shown.

Original languageEnglish
Pages (from-to)778-779
Number of pages2
JournalElectronics Letters
Issue number9
Publication statusPublished - 28 Apr 2016



  • Antennas
  • Wireless telecommunication
  • systems
  • digital-analogue conversion
  • MIMO systems
  • digital-to-analogue converters
  • multiple-input multiple-output systems
  • nonlinear distortion effects
  • low-complexity maximum ratio transmission technique
  • word length 1 bit

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