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arXiv · 2212.11842

A High-Level Comparison of Recent Technologies for Massive MIMO Architectures

Hans Rosenberger·Bernhard Gäde·Ali Bereyhi·Doaa Ahmed·Vahid Jamali·Ralf R. Müller·Georg Fischer·Gaoning He·Mérouane Debbah
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Abstract

Since the introduction of massive MIMO (mMIMO), the design of a transceiver with feasible complexity has been a challenging problem. Initially, it was believed that the main issue in this respect is the overall RF-cost. However, as mMIMO is becoming more and more a key technology for future wireless networks, it is realized, that the RF-cost is only one of many implementational challenges and design trade-offs. In this paper, we present, analyze and compare various novel mMIMO architectures, considering recent emerging technologies such as intelligent surface-assisted and Rotman lens based architectures. These are compared to the conventional fully digital (FD) and hybrid analog-digital beamforming (HADB) approaches. To enable a fair comparison, we account for various hardware imperfections and losses and utilize a novel, universal algorithm for signal precoding. Based on our thorough investigations, we draw a generic efficiency to quality trade-off for various mMIMO architectures. We find that in a typical cellular communication setting the reflect/transmit array based architectures sketch the best overall trade-off. Further, we show that in a qualitative ranking the power efficiency of the considered architectures is independent of the frequency range.

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Hans Rosenberger, Bernhard Gäde, Ali Bereyhi, Doaa Ahmed, Vahid Jamali, Ralf R. Müller, Georg Fischer, Gaoning He, Mérouane Debbah. 2022-12-22. A High-Level Comparison of Recent Technologies for Massive MIMO Architectures. https://arxiv.org/abs/2212.11842

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