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

Electronics Letters

J. Guerreiro¹  R. Dinis¹  P. Montezuma² 

[1] Instituto de Telecomunicações, FCT – Universidade Nova de LisboaLisboaPortugal;UNINOVA, FCT – Universidade Nova de LisboaLisboaPortugal;

关键词: digital‐to‐analogue converters;    massive MIMO systems;    multiple‐input multiple‐output systems;    nonlinear distortion effects;    low‐complexity maximum ratio transmission technique;    transmit antennas;   

DOI  :  10.1049/el.2015.4037

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown