تقرير
Hardware-Aware Pilot Decontamination Precoding for Multi-cell mMIMO Systems With Rician Fading
| العنوان: | Hardware-Aware Pilot Decontamination Precoding for Multi-cell mMIMO Systems With Rician Fading |
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| المؤلفون: | Kesarwani, Harshit, Amudala, Dheeraj Naidu, Tentu, Venkatesh, Budhiraja, Rohit |
| سنة النشر: | 2022 |
| المجموعة: | Computer Science Mathematics |
| مصطلحات موضوعية: | Computer Science - Information Theory, Electrical Engineering and Systems Science - Signal Processing |
| الوصف: | We consider a hardware-impaired multi-cell Rician faded massive multi-input multi-output (mMIMO) system with two-layer pilot decontamination precoding, also known as large-scale fading precoding (LSFP). Each BS is equipped with a flexible dynamic analog-to-digital converter (ADC)/digital-to-analog converter (DAC) architecture and the user equipments (UEs) have low-resolution ADCs. Further, both BS and UEs have hardwareimpaired radio frequency chains. The dynamic ADC/DAC architecture allows us to vary the resolution of ADC/DAC connected to each BS antenna, and suitably choose them to maximize the SE. We propose a distortion-aware minimum mean squared error (DA-MMSE) precoder and investigate its usage with two-layer LSFP and conventional single-layer precoding (SLP) for hardware-impaired mMIMO systems. We discuss the use cases of LSFP and SLP with DA-MMSE and distortion-unaware MMSE (DU-MMSE) precoders, which will provide critical insights to the system designer regarding their usage in practical systems. Comment: This paper is accepted for presentation in 2022 IEEE Global Communications Conference: Wireless Communications (Globecom 2022 WC), 7 pages and 4 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2211.16276 |
| رقم الأكسشن: | edsarx.2211.16276 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |