On low-resolution adcs in practical 5g millimeter-wave massive mimo systems

@article{Moon2019MassiveMS,
  title={Massive MIMO Systems With Low-Resolution ADCs: Baseband Energy Consumption vs. Symbol Detection Performance},
  author={Seungsik Moon and In-Soo Kim and Dongyun Kam and Dong-Woo Jee and Junil Choi and Youngjoo Lee},
  journal={IEEE Access},
  year={2019},
  volume={7},
  pages={6650-6660}
}

In massive multiple-input multiple-output (MIMO) systems using a large number of antennas, it would be difficult to connect high-resolution analog-to-digital converters (ADCs) to each antenna component due to high cost and energy consumption problems. [] Key Method In order to minimize the energy consumption for the given channel condition, the proposed scheme selects the best mode among various processing options while supporting the target frame error rate. The numerous case studies reveal that the…

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Energy-Efficient Precoding Architecture for Multi-User MIMO Systems

• Seungsik MoonDeokhwa HanN. LeeYoungjoo Lee

• Computer Science

  2020 54th Asilomar Conference on Signals, Systems, and Computers

• 2020

This paper presents an energy-efficient algorithm for GPIP by presenting various optimization techniques that jointly consider the hardware architecture and the algorithm-level performance and shows that the energy efficiency improves up to 97.3% while attaining a similar sum-spectral efficiency compared to that of a naive implementation method under practically relevant MU- MIMO systems.

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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.

Submission history

From: Jiayi Zhang [view email]
[v1] Tue, 20 Mar 2018 11:51:18 UTC (1,567 KB)