Open AccessUse of 1‐bit digital‐to‐analogue converters in massive MIMO systems
Author(s) -
Guerreiro J.,
Dinis R.,
Montezuma P.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2015.4037
Subject(s) - mimo , converters , electronic engineering , telecommunications link , computer science , distortion (music) , multi user mimo , broadband , antenna (radio) , 3g mimo , transmission (telecommunications) , telecommunications , electrical engineering , engineering , channel (broadcasting) , bandwidth (computing) , amplifier , voltage
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.