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arXiv · 1803.07384

On Low-Resolution ADCs in Practical 5G Millimeter-Wave Massive MIMO Systems

Jiayi Zhang·Lnglong Dai·Xu Li·Ying Liu·Lajos Hanzo
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Abstract

Nowadays, millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) systems is a favorable candidate for the fifth generation (5G) cellular systems. However, a key challenge is the high power consumption imposed by its numerous radio frequency (RF) chains, which may be mitigated by opting for low-resolution analog-to-digital converters (ADCs), whilst tolerating a moderate performance loss. In this article, we discuss several important issues based on the most recent research on mmWave massive MIMO systems relying on low-resolution ADCs. We discuss the key transceiver design challenges including channel estimation, signal detector, channel information feedback and transmit precoding. Furthermore, we introduce a mixed-ADC architecture as an alternative technique of improving the overall system performance. Finally, the associated challenges and potential implementations of the practical 5G mmWave massive MIMO system {with ADC quantizers} are discussed.

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Jiayi Zhang, Lnglong Dai, Xu Li, Ying Liu, Lajos Hanzo. 2018-03-20. On Low-Resolution ADCs in Practical 5G Millimeter-Wave Massive MIMO Systems. https://doi.org/10.1109/mcom.2018.1600731

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