Test cases and challenges for mobile network evolution from LTE to 5G

Mihaylov, Grigor; Iliev, Teodor; Bikov, T. D.; Ivanova, Elena P.; Stoyanov, Ivaylo; Keseev, Ventsislav; Dinov, A. R.

doi:10.23919/mipro.2018.8400085

Cited by 18 publications

(4 citation statements)

References 8 publications

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“…Despite the requirements and the "promises" of the providers, the quality of mobile telecommunication services is not adequate in some parts of their covered areas. In fact, the radio signal coverage of the GSM network, and the level of the LTE signal in particular, is not reliable, nor is it constantly stable enough in the areas of small villages where few people live, although the majority of those people also need a mobile service with the same excellent parameters as is delivered in the territories of the big cities [1,2]. Obviously, it is not profitable for the providers to develop the infrastructure in low-population areas, and this is a very unpleasant problem for the minority population who prefer to live in small towns and villages or much closer to wild nature [3].…”

Section: Introductionmentioning

confidence: 99%

Local Area Improvement of GSM Network Coverage

Tomov,

Kogias,

Malamatoudis

et al. 2024

The 4th International Conference on Communications, Information, Electronic and Energy Systems

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Section: Introductionmentioning

confidence: 99%

Local Area Improvement of GSM Network Coverage

Tomov,

Kogias,

Malamatoudis

et al. 2024

The 4th International Conference on Communications, Information, Electronic and Energy Systems

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“…MIMO antenna technology is expected to provide high gain, low bit error rates, and high data capacity as compared against single-input single-output (SISO) antenna system. Moreover, as the number of antenna elements is increased, the MIMO antenna system has a great capability to enhance transmission path, resist electromagnetic interference, and scan blindness problems, especially when antenna elements are highly decoupled [1,[11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Wideband Diversity Mimo Antenna Design With Hexagonal Slots for 5g Smart Mobile Terminals

Alhaqbani¹,

Bait-Suwailam²,

Aldhaeebi³

et al. 2022

PIER C

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In this paper, we propose a wideband polarization diversity multiple-input multiple-output (MIMO) antenna array for 5G smart mobile devices. The proposed MIMO antenna array consists of 8-ports dual-polarized L-shaped lines that highly excite radiating slots, where the elements are placed at four-corners of a compact mobile unit of size 75 × 150 mm 2 . The uniqueness of the proposed MIMO antenna structure comes from the deployment of octagon-shaped resonant slots within the metallic ground plane, i.e., the octagonal-slots are etched from the bottom (ground) layer of the main mobile board. Due to the unique slots in the ground plane, wideband impedance has been achieved (3.38-3.8 GHz at −6-dB threshold). The proposed smart phone 8 × 8 diversity MIMO antenna is designed to support the spectrum of commercial sub-6 GHz 5G communications and cover the frequency range of around 3.5 GHz band with high decoupling between antenna ports. The proposed array is designed, numerically simulated, fabricated, and tested. Good agreement between simulated and measured results was achieved. The MIMO antenna has a satisfactory far-field performance along with very low envelope correlation coefficient (ECC) < 0.055, high diversity of more than 9.95, and very low specific absorption rate (< 1 W/kg for a 10-g human tissue).

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“…As 5G allows IoT applications such as health care, education, energy, and transportation [4], it is critical provided applications performing as planned each time. Some significant countries also proposed a commercial schedule and carried out pre-technical tests, paving the foundation for the 2018-2020, 5G commercial [5]. Wireless 5G technology provides the incredible data speeds of multi Gbps, extremely low latency, better protection, large network capacity, enhanced availability, and more continuous experience design for more users [6].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of 5G Coexistence and Interference Signals in the C-Band Satellite Earth Station

Al-Jumaily

Sali

Jiménez

et al. 2022

IEEE Trans. Veh. Technol.

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Satellite Services (FSS) used to be alone at the C-Band spectrum in most countries. Since the deployment of 5G in many countries (i.e., 3.3 -3.6GHz), FSS is not the exclusive system in the C-Band anymore. In order to minimize the detrimental interference for the FSS to allowable levels, regional exclusion zones of maximum radiated power in 5G base stations (BS) are proposed and evaluated.ixed Satellite Services (FSS) used to be alone at the C-Band spectrum in most countries. Since the deployment of 5G in many countries (i.e., 3.3 -3.6GHz), FSS is not the exclusive system in the C-Band anymore. In order to minimize the detrimental interference for the FSS to allowable levels, regional exclusion zones of maximum radiated power in 5G base stations (BS) are proposed and evaluated.F In this paper, a measurement campaign has been carried out, and an analysis of the interference has been studied. A filtering model, namely Filter to Remove Broadband Interference 5G (FIREBRING), is proposed and analyzed concerning the carrier-to-noise ratio (C/N). Moreover, this paper focuses on the evaluation of the 5G interference into the FSS. The proposed solution deployed an Low-Noise Block (LNB) with a band frequency of 3.7 to 4.2GHz to test the satellite down-conversion signal at the receiver. The paper offered a complete analysis of the 5G signal, taking into account the implications of out-of-band emissions, potentially LNB saturation into FSS receiver, and the repercussions of the deployment of the 5G BS active antenna systems. With the LNB and down-converter in place, it can be found that the signal interference between 1.450GHz and 1.550GHz, is nearly 18dB.

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Test cases and challenges for mobile network evolution from LTE to 5G

Cited by 18 publications

References 8 publications

Local Area Improvement of GSM Network Coverage

Local Area Improvement of GSM Network Coverage

Wideband Diversity Mimo Antenna Design With Hexagonal Slots for 5g Smart Mobile Terminals

Evaluation of 5G Coexistence and Interference Signals in the C-Band Satellite Earth Station

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