scholarly journals Evaluation of Interference in Ultra-Dense 5G Radio Access Networks with Beamforming

Telecom IT ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 35-59
Author(s):  
G. Fokin
Keyword(s):  
Radiation Pattern ◽  
Antenna Arrays ◽  
Access Network ◽  
Beam Width ◽  
Base Station ◽  
Access Networks ◽  
Base Stations ◽  
Radio Access Network ◽  
Radio Access Networks ◽  
Radio Access

In this paper, we investigate the dependence of the level of intersystem interference on the beam width of the adaptively formed antenna radiation pattern and the territorial separation of neighboring devices in ultra-dense 5G radio access networks. The results of simulation modeling of a radio access network based on 19 base stations with the parameterization of the antenna array gain by the width of the radiation pattern in the horizontal plane show that when the base station beam is di-rected to the user device and narrowed from 360° to 5°, the level of intrasystem interference decreases by 15 dB compared with the case of omnidirectional antennas. The results of simulation of a radio access network based on 19 three-sector base stations with planar antenna arrays of 64 elements illustrate a significant reduction in the level of interference in comparison with the case of omnidirectional antennas and, in order to obtain zones of a positive signal-to-noise ratio, confirm the need for a territorial separation of neighboring devices by 10–20 % of the range of radio coverage.

Joint Dimensioning of Outdoor Heterogeneous Radio Access Networks (HetNet) using Monte Carlo Simulation

MACRo 2015 ◽  
2015 ◽  
Vol 1 (1) ◽  
pp. 135-144
Author(s):  
Péter Ratkóczy ◽  
Attila Mitcsenkov
Keyword(s):  
Monte Carlo Simulation ◽  
Small Cell ◽  
Access Networks ◽  
Base Stations ◽  
Small Cells ◽  
Traffic Demand ◽  
Radio Access Networks ◽  
Traffic Capacity ◽  
Radio Access ◽  
Cell Densities

AbstractThe experienced mobile traffic increase in the recent years made traffic capacity the bottleneck instead of the coverage constraints, calling for significantly higher density of the base stations. Heterogeneous radio access networks (HetNet) provide a possible solution to this problem, combining various wireless technologies. In this paper we investigated the joint dimensioning of the co-existent radio access networks, the relation between the required macro and small cell densities to meet a certain traffic demand, and compared the two main, competing technological solutions, namely small cells and Wi-Fi, suitable to complement an LTE (macrocell) network.

scholarly journals Evaluation Methodology for Virtual Base Station Platforms in Radio Access Networks

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 49366-49374 ◽  
Author(s):  
Lin Tian ◽  
Yiqing Zhou ◽  
Yuanyuan Wang ◽  
Jun Yang ◽  
Qian Sun ◽  
...  
Keyword(s):  
Base Station ◽  
Access Networks ◽  
Evaluation Methodology ◽  
Radio Access Networks ◽  
Radio Access ◽  
Virtual Base Station

scholarly journals Heterogeneous Cloud Radio Access Networks: Enhanced Time Allocation for Interference Mitigation

2018 ◽  
Vol 2018 ◽  
pp. 1-17
Author(s):  
Imad Al-Samman ◽  
Reham Almesaeed ◽  
Angela Doufexi ◽  
Mark Beach
Keyword(s):  
Cloud Computing ◽  
Resource Sharing ◽  
Interference Mitigation ◽  
Base Station ◽  
Small Cell ◽  
Access Networks ◽  
Cloud Radio Access Networks ◽  
Radio Access Networks ◽  
Radio Access ◽  
Heterogeneous Cloud

Responding to the unprecedented challenges imposed by the 5G technologies, mobile operators have given significant attention to Heterogeneous Cloud Radio Access Networks (H-CRAN) due to their beneficial features of performing optimization, cost effectiveness, and improving spectral and energy efficiency performance. H-CRAN inherits the attractive benefits of Heterogeneous Networks (HetNet) and the cloud computing by facilitating interference mitigation, scalability, and radio resource control. Consequently, H-CRAN is proposed in this article as a cost-effective potential solution to alleviate intertier interference and improve cooperative processing gains in HetNets by employing cloud computing. H-CRAN can provide efficient resource sharing at the spectrum, network, and infrastructure levels. Therefore, this article proposes H-CRAN cooperative interference mitigation method that enhances the time sharing among Radio Remote Heads (RRH) users. The study proposes an enhanced Almost Blank Subframe (ABSF) technique to increase the SINR and throughput of the small-cell (low power base station) and macrocell users. Simulation results show that the proposed Dynamic Programming-Diverse Almost Blank Subframe (ABSF) Pattern (DP-DAP) scheme improved the macro- and small-cell users up to 56% and 35%, respectively, as compared to other state-of-the-art ABSF schemes.

EMC PROVISION PROBLEMS OF RAILWAY LTE-1800 COMMUNICATION NETWORKS FOR THE NONSTANDARDIZED FREQUENCY BAN

2020 ◽  
Author(s):  
С.В. ТЕРЕНТЬЕВ ◽  
М.А. ШЕЛКОВНИКОВ ◽  
В.О. ТИХВИНСКИЙ ◽  
Е.Е. ДЕВЯТКИН
Keyword(s):  
Communication Networks ◽  
Frequency Band ◽  
Electromagnetic Compatibility ◽  
Band 3 ◽  
Access Networks ◽  
Base Stations ◽  
Radio Access Networks ◽  
Mobile Operator ◽  
Radio Access ◽  
The Subject

Предметом статьи является исследование электромагнитной совместимости (ЭМС) базовых станций LTE нестандартизованного частотного диапазона 1785-1805 МГц с временным дуплексом (TDD) для технологической связи на железныхдорогах и базовых станций LTE-1800 с частотным дуплексом (FDD) операторов мобильной связи частотного диапазона Band 3. Актуальность исследований обусловлена будущим внедрением технологической сети LTE-1800 TDD для организации беспроводной связи на железных дорогах и разработкой условий ЭМС с существующими сетями радиодоступа E-UTRAN FDD операторов мобильной связи, работающих в примыкающих частотных диапазонах 1710-1785 и 1805-1880 МГц. The subject of this article is a study of electromagnetic compatibility (EMC) conditions of LTE-1800 TDD base stations for railways technological communications in the non-standardized frequency band 1785-1805 MHz and LTE-1800 FDD base stations of traditional mobile operator networks of the Band 3 frequency band. The relevance of the research is due to the future deployment of technological railway LTE-1800 TDD communication networks and the development of EMC conditions with the existing E-UTRAN FDD radio access networks of mobile operators operating in the adjacent frequency ranges 1710-1785 MHz and 1805-1880 MHz.

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