Use of 1‐bit digital‐to‐analogue converters in massive MIMO systems. Issue 9 (4th April 2016)

• Record Type: Journal Article
• Authors: Guerreiro, J.; Dinis, R.; Montezuma, P.
• Is Part Of: Electronics letters. Volume 52:Issue 9(2016)
• Page Start: 778
• Page End: 779
• Publication Date: 2016-04-04
• Subjects: digital‐analogue conversion -- MIMO systems; digital‐to‐analogue converters -- massive MIMO systems -- multiple‐input multiple‐output systems -- nonlinear distortion effects -- low‐complexity maximum ratio transmission technique -- transmit antennas -- word length 1 bit; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2015.4037
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : 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.