Active antenna system (AAS) capabilities for 5G systems: A field study of performance

Heikkilä, Matti; Kippola, Tero; Karsama, Piritta; Nykanen, Asko; Tuuttila, Pekka; Matinmikko, Marja

doi:10.4108/icst.5gu.2014.258113

Cited by 9 publications

(3 citation statements)

References 8 publications

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“…Horizontal beamforming is useful when the beam is steered towards the user. While this study concentrated on evaluating uplink throughput gain in a challenging non-line-of-sight environment, previous study results [23] indicate that AAS with vertical sectorization can offer an 84.6% gain in downlink throughput. The research results that have been produced thus far indicate that different NLOS locations have different multipath profiles in horizontal and vertical dimensions.…”

Section: Discussionmentioning

confidence: 99%

“…The AAS environment was part of a cognitive radio trial environment (CORE) that was operated to showcase the world's first live licensed shared access (LSA) trials, described in [22]. This environment has also been used in several other public trials, such as [23,24]. The field trial environment network has a restricted connection to the Internet or other public networks.…”

Section: Networkmentioning

confidence: 99%

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Field Measurement for Antenna Configuration Comparison in Challenging NLOS Locations

Heikkilä

Erkkila

Tervonen

et al. 2018

IEEE Trans. Instrum. Meas.

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This article has two main objectives. First, it describes the practical challenges of field trials and proposes a developed test method. Secondly, the test method is used to compare uplink performance with different antenna technologies when user equipment does not have a line of sight to the evolved Node B. Both passive and active antenna configurations were used in the performance evaluation. Modern cellular networks have high demands for capacity, reliability, and availability. The verification of a network's configuration and technological features is essential to guarantee network performance, and the performance of a network must be verified by laboratory testing or field trials; such trials produce experimental knowledge of technology features and configurations. Technological and environmental factors must also be considered before performing mobile network field-testing. Our work showed that moving user equipment produces more reliable and repeatable results than measurements with stationary user equipment. Our antenna configuration comparison study revealed that in the uplink direction, active antenna system beam control could significantly increase the uplink capacity in non-line-of-sight conditions. Index Terms-2-and 4-way RX diversity, AAS, field trial, horizontal beamforming, non-line-of-sight environment, MIMO, uplink capacity improvement, vertical beamforming.

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Section: Discussionmentioning

confidence: 99%

Section: Networkmentioning

confidence: 99%

Field Measurement for Antenna Configuration Comparison in Challenging NLOS Locations

Heikkilä

Erkkila

Tervonen

et al. 2018

IEEE Trans. Instrum. Meas.

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“…This integration supports more intelligent and adaptive beam-forming capabilities, allowing for real-time network optimization. The modular design of AAS enables easy expansion of network capabilities by adding more active antenna units as needed [63].…”

Section: A Structures Of Scalable Modular Antennasmentioning

confidence: 99%

Advancements and Challenges in Scalable Modular Antenna Arrays for 5G Massive MIMO Networks

Ashraf,

Gunawan,

Kartiwi

et al. 2024

IEEE Access

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This paper presents a comprehensive review of the advancements and challenges in scalable modular antenna arrays for 5G Massive MIMO (Multiple Input Multiple Output) networks, a pivotal technology for the next-generation wireless communication. Tracing the evolution of wireless technologies from 1G to 4G, the paper contextualizes the paradigm shift brought by 5G, characterized by enhanced spectral efficiency, massive device connectivity, and higher frequency bands. Focusing on Massive MIMO, the paper explores its role in augmenting network capacity and signal quality via advanced techniques like beamforming and spatial multiplexing. It delves into the intricacies of designing and implementing scalable modular antenna arrays, essential for the flexibility and optimization of rapidly evolving 5G networks. The review also covers mathematical modeling, advantages of Massive MIMO, and the challenges in integration, performance under diverse conditions, and cost-complexity balance. Concluding with insights into the commercialization trajectory of MIMO technology and its integration into modern telecommunications, the paper highlights the ongoing research directions and future potential of scalable modular antenna arrays in meeting the ambitious demands of 5G and beyond.

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IMT-2020 Evaluation of EUHT Radio Interface Technology

Bachkaniwala

Dhanwani

Charan

et al. 2020

2020 IEEE 3rd 5G World Forum (5GWF)

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Active antenna system (AAS) capabilities for 5G systems: A field study of performance

Cited by 9 publications

References 8 publications

Field Measurement for Antenna Configuration Comparison in Challenging NLOS Locations

Field Measurement for Antenna Configuration Comparison in Challenging NLOS Locations

Advancements and Challenges in Scalable Modular Antenna Arrays for 5G Massive MIMO Networks

IMT-2020 Evaluation of EUHT Radio Interface Technology

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