"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki ISSN 1684-1719, N 5, 2019

contents of issue      DOI  10.30898/1684-1719.2019.5.11     full text in English (pdf)  

Ultra Massive MIMO as an alternative to Ultra dense network: Benefits and Challenges

Arkady Molev-Shteiman

New Jersey Research Center, Huawei Technologies, Bridgewater, NJ, USA


The paper is received on May 6, 2019


Abstract. This publication contains a general overview of Ultra Massive MIMO (U-M-MIMO) communication technology development over the last decade and comparison of this technology with ultra-dense network communication.  We proved that in free space, these two technologies are equivalent. However, taking into account real channel and other practical constrains, each technology has its own advantages and disadvantages. We provide our evaluation of spectral efficiency gain that Massive MIMO (M-MIMO) provides for different channel models (both sub 6GHz and mm Waves). We also outline major challenges faced by M-MIMO technologies, such as channel estimation, cost, and power consumption, and will present most up-to-date solution approaches to resolve these problems. We compare two approaches to reduce M-MIMO cost and power consumption: “hybrid beamforming” vs. “all digital solution” with low resolution ADC’s and DAC’s.  We compare two possible modulations (Multi-Carrier vs. Single-Carrier) for M-MIMO.

Keywords: Ultra Massive MIMO, Ultra Dense Network, Antennas Phased Array, M-MIMO Channel Capacity, M-MIMO Channel Estimation, Hybrid Beamforming vs. All Digital solution for M-MIMO, Multi-Carrier vs. Single-Carrier Modulation for M-MIMO.


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For citation:

Arkady.Molev-Steiman. Ultra Massive MIMO as an alternative to Ultra dense network: Benefits and Challenges. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No.5. Available at http://jre.cplire.ru/jre/may19/11/text.pdf

DOI  10.30898/1684-1719.2019.5.11