5G NR Coverage, Performance and Beam Management Demonstrated in an Outdoor Urban Environment at 28 GHz

Halvarsson, Bjorn; Larsson, Kjell; Thurfjell, Magnus; Hiltunen, Kimmo; Tran, Khanh Duong; Machado, Paulo; Juchnevicius, Daniel; Asplund, Henrik

doi:10.1109/5gwf.2018.8517035

Cited by 8 publications

(5 citation statements)

References 13 publications

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“…On the other hand, modern communication systems exhibit shrinkage of the coverage area [ 62 ] leading to the decrease of the number of multipath components, hence failing to comply with the Gaussian approximation. In this case, a more suitable distribution can be assumed for

.…”

Section: General System Descriptionmentioning

confidence: 99%

Closed-Form Capacity Reliability Analysis of Multiuser MIMO System in the Presence of Generalized Multipath Fading

Gvozdarev

Alishchuk

Kazakova

2023

Sensors

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This research studies the problem of a joint capacity/capacity reliability analysis of the multiuser multi-input multioutput (MIMO) system functioning in the presence of generalized multipath fading. The study presents the derived results of the closed-form analytical statistical description of the ergodic sum-rate capacity, the capacity reliability and the capacity’s higher-order statistics in the case of complex Nakagami-m distributed channel transmission coefficients. A numerical verification of the derived expressions was performed, and it demonstrated excellent correspondence with the simulation. The system performance was evaluated with the help of a numerical analysis of the joint first- and second-order statistics description, depending on the channel and system parameters. The results demonstrated several peculiarities, e.g., the existence of a specific extremum of the capacity reliability for small-sized MIMO systems, its opposite behavior (in terms of the varying number of antenna elements) for heavy and light fading, and the existing asymptotic regions of the system and the channel parameters.

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.…”

Section: General System Descriptionmentioning

confidence: 99%

Closed-Form Capacity Reliability Analysis of Multiuser MIMO System in the Presence of Generalized Multipath Fading

Gvozdarev

Alishchuk

Kazakova

2023

Sensors

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“…The authors of [31] introduce Beam Division Multiple Access (BDMA) to provide multiple access to ground users from aerial BSs in mmWave frequencies. However, they have found that the number of beams is [19], [32] present the results of testbeds for beamforming management in the 3.5 GHz, demonstrating bandwidth efficiency of 8.75 bit/s/Hz for LoS links and 2.5 bit/s/Hz in NLoS links for the 3.5GHz band.…”

Section: B Massive Mimo Beamforming and Beam Management On Uabsmentioning

confidence: 99%

“…By using beamforming with 256-antenna elements, the antenna gain could increase up to 24 dB, increasing the UABS connectivity range up to 8 times, thus extending the coverage of UABS-aided networks. In addition, the capacity will be increased too because, for higher antenna gains, higher SNR values at the receiver will be found, resulting in better Modulation and Coding Schemes (MCS) that support higher bit rates [19].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Beamsteering Performance in MultiuserMIMO Unmanned Aerial Base Stations Networks

et al. 2022

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Future wireless communication networks can benefit from Unmanned Aerial Base Stations (UABSs) to provide enhanced capacity to ground users (GU) in large and remote locations. Connecting UABSs to the terrestrial network presents several challenges, such as the limited gain traditional antennas need to maintain suitable wireless links between the core network, UABS, and GU. A convenient solution is to use MaMIMO (Massive Multiple Input Multiple Output) since it improves spectral and energy efficiency, thus providing high data rates while reducing power consumption. This paper proposes a Multiuser MIMO (MuMIMO) model for UABS aided networks to increase service range and served capacity. It uses hybrid beamforming and beamsteering on Terrestrial Base Stations (TBSs) and UABSs to grant access to mobile GU in a bicycle race scenario. Results show that using the mobile operators' locations will benefit the backhaul network's performance by duplicating the capacity compared to using a private operator. Furthermore, user coverage increases by 400% if MuMIMO is used, compared to a single beam MaMIMO network. The proposed scenario could achieve a channel efficiency of 6.5 bit/s/Hz in the access network and 8.6 bit/s/Hz in the backhaul network. Finally, the average UABS transmitted power is reduced by 2/3, increasing the number of used beams

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“…Furthermore, the downlink throughput gains of a 2.6 GHz 128 antenna BS relative to a 8 antenna LTE-A system is presented in [13], where the beamforming gain of massive MIMO is examined. Coverage predictions of 5G-NR systems at 3.5 GHz are presented in [7] and [14], while coverage, performance, and beam management concepts are investigated at 28 GHz with pre-commercial setups in [15][16][17]. Despite this, the majority of the above studies do not identify the fundamental physical layer attributes that primarily differentiate the resulting system performance.…”

Section: Introductionmentioning

confidence: 99%

Real-Time Deployment Aspects of C-Band and Millimeter-Wave 5G-NR Systems

Shafi¹,

Tataria

Molisch

et al. 2020

ICC 2020 - 2020 IEEE International Conference on Communications (ICC)

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Fifth-generation (5G) new radio (NR) deployments are being rolled out in both the C-band (3.3 -5.0 GHz) and millimeter-wave (mmWave) band (24.5 -29.5 GHz). For outdoor scenarios, the C-band is expected to provide wide area coverage and throughput uniformity, whereas the mmWave band is expected to provide ultra-high throughput to dedicated areas within the C-band coverage. Due to the differences in the frequency bands, both systems are expected to be designed with different transmit and receive parameters, naturally resulting in performance variations proportional to the chosen parameters. Unlike many previous works, this paper presents measurement evaluations in central Auckland, New Zealand, from a precommercial deployment of a single-user, single-cell 5G-NR system operating in both bands. The net throughput, coverage reliability, and channel rank are analyzed across the two bands with baseband and analog beamforming. Our results show that the C-band coverage is considerably better than mmWave, with a consistently higher channel rank. Furthermore, the spatial stationarity region (SSR) for the azimuth angles-of-departure (AODs) is characterized, and a model derived from the measured beam identities is presented. The SSR of azimuth AODs is seen to closely follow a gamma distribution.

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5G NR Coverage, Performance and Beam Management Demonstrated in an Outdoor Urban Environment at 28 GHz

Cited by 8 publications

References 13 publications

Closed-Form Capacity Reliability Analysis of Multiuser MIMO System in the Presence of Generalized Multipath Fading

Closed-Form Capacity Reliability Analysis of Multiuser MIMO System in the Presence of Generalized Multipath Fading

Evaluation of Beamsteering Performance in MultiuserMIMO Unmanned Aerial Base Stations Networks

Real-Time Deployment Aspects of C-Band and Millimeter-Wave 5G-NR Systems

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