scholarly journals Modeling of the Сellular Сommunication System Coverage Area Taking into Account the External Details of the Terrain

2021 ◽  
Vol 13 (4) ◽  
pp. 35-44
Author(s):  
Yevhen Gabrousenko ◽  
◽  
Anatolii Taranenko ◽  
Felix Yanovsky ◽  
Serhii Zavhorodnii
Keyword(s):  
Communication Systems ◽  
Wave Reflection ◽  
Base Station ◽  
Cellular Communication ◽  
Cellular Communications ◽  
Coverage Area ◽  
New Approach ◽  
External Objects ◽  
Coverage Zone ◽  
Further Development

This paper proposes a new approach to estimating the contour of the coverage zone for a cellular communications base station that takes into account meaningful reflecting objects located out of the considering zone. Based on this approach, the procedure for modeling and designing the cellular system coverage area. Unlike known methods, the developed procedure considers the influence of electromagnetic wave reflection from external details of the relief, in particular essential reflecting objects located outside the considered cell. The effect of the external objects on the formation of the coverage area resulting contour is considered analytically, numerically and experimentally. The proposed solution leads to more accurate designing of the coverage area for each cell. This creates the opportunity for further development of designing techniques to more effective engineering solutions at developing and applying cellular communication systems in real situations and at various scenarios.

scholarly journals Interference Cancellation Based Spectrum Sharing for Massive MIMO Communication Systems

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3584
Author(s):  
Milembolo Miantezila Junior ◽  
Bin Guo ◽  
Chenjie Zhang ◽  
Xuemei Bai
Keyword(s):  
Interference Cancellation ◽  
Communication Systems ◽  
Spectrum Sharing ◽  
Null Space ◽  
Base Station ◽  
Base Stations ◽  
Small Cells ◽  
Data Traffic ◽  
New Approach ◽  
Lte Advanced

Cellular network operators are predicting an increase in space of more than 200 percent to carry the move and tremendous increase of total users in data traffic. The growing of investments in infrastructure such as a large number of small cells, particularly the technologies such as LTE-Advanced and 6G Technology, can assist in mitigating this challenge moderately. In this paper, we suggest a projection study in spectrum sharing of radar multi-input and multi-output, and mobile LTE multi-input multi-output communication systems near m base stations (BS). The radar multi-input multi-output and mobile LTE communication systems split different interference channels. The new approach based on radar projection signal detection has been proposed for free interference disturbance channel with radar multi-input multi-output and mobile LTE multi-input multi-output by using a new proposed interference cancellation algorithm. We chose the channel of interference with the best free channel, and the detected signal of radar was projected to null space. The goal is to remove all interferences from the radar multi-input multi-output and to cancel any disturbance sources from a chosen mobile Communication Base Station. The experimental results showed that the new approach performs very well and can optimize Spectrum Access.

scholarly journals Design and Simulation of Optimal Number of Small Cells Deployment in Fourth-Generation Cellular Networks

2021 ◽  
pp. 583-588
Author(s):  
Mohamed Ibrahim Shujaa ◽  
◽  
Nada Qasim Mohammed ◽  
Moustafa K. Ibrahim ◽  
Qasim Mohammed Hussein
Keyword(s):  
Communication Systems ◽  
Optimal Number ◽  
Small Cell ◽  
Small Cells ◽  
Fourth Generation ◽  
Wireless Communication Systems ◽  
Coverage Area ◽  
New Approach ◽  
Fifth Generation ◽  
Cell Placement

In next-generation of wireless communication systems, Fifth-Generation (5G), small cells deployment is one of the most important issues that must be taking in the account. This paper discusses this issue in three aspects. First, it aims to derive the Critical Handover Location (CHL) point for neighbouring wireless stations which in turn is considered an entrance to the second aspect of this work that decides the small cell placement in one network. Finally, the work proposed a new approach to evaluating the Number of Small Cells (NRS) deployment mathematically. The proposed approach provides the balance in resources allocation in the network in terms of transmitted power of each small cell and their placement in order to provide maximum capacity and coverage area with a lower level of interference between nearest wireless stations thus decreasing the total cost of network insulation.

scholarly journals Design and Build a Smartphone-Based Budget Coverage Area Link Application Module

2016 ◽  
Vol 3 (2) ◽  
pp. 14-19
Author(s):  
Ahmad Nur Siswanto
Keyword(s):  
Communication Systems ◽  
Base Station ◽  
Coverage Area ◽  
Application System ◽  
Learning Module ◽  
Calculation Results ◽  
Link Budget ◽  
The Difference ◽  
The Cost ◽  
Application Module

Coverage is needed to determine the amount of signal coverage that can be reached by the antenna at the base station. Therefore, in order to know the coverage area of ??a base station, a link budget coverage area application is needed. The purpose of making a link budget coverage area calculation application system at a base station is to assist in calculating the link budget to determine the coverage area of ??a base station and is also used as a learning module for mobile communication systems at State Polytechnic of Malang. The method of determining the coverage area is done in 2 ways, namely the calculation using the application and the drive test. The method of calculating the link budget coverage area used is 3 models, the Okumura-Hatta model is used to calculate the GSM system coverage area, the Cost-231 Hatta model for the DCS system, and the Walfisch Ikegami model for the UMTS 2100 system. measurement of the signal level around the base station area. The comparison of the coverage area between the measurement and calculation results is almost close to the difference in coverage of less than 100 m. Wherefrom the results of the drive test, the farthest range is 980 m with a signal level value of -91 dBm. Meanwhile, from the calculation side, the results obtained coverage of 1.06 km and 1.05 km with a signal level of -90 dBm

scholarly journals The Communication System of Building from Outdoor to Indoor with AMC at 10 GHz

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Andrita Ceriana Eska
Keyword(s):  
Communication Systems ◽  
Signal To Noise Ratio ◽  
Adaptive Modulation ◽  
Mobile Station ◽  
Base Station ◽  
Propagation Model ◽  
Adaptive Modulation And Coding ◽  
Coverage Area ◽  
Communication Frequency ◽  
Station Location

The propagation model of communication systems was used propagation from outdoor to indoor of building. In the inside that building used partition with brick. That propagation condition used downlink condition from mobile station side. The communication frequency used 10 GHz. Some parameter variation was used in this research such as radio base station coverage, mobile station location of building, and code rate communication. The coverage variation of radio base station used femtocell and picocell. As the result described signal to noise ratio (SNR)at every node communication, adaptive modulation and coding (AMC) variation, and coverage area percentage in the building. The modulation and coding scheme (MCS) was used consist of QPSK, 16 QAM, and 64 QAM

scholarly journals Groups of mobile cellular service stations for operational radio communication tasks in remote areas

2021 ◽  
Vol 2091 (1) ◽  
pp. 012031
Author(s):  
O N Pishchin ◽  
D S Puzankov ◽  
K V Perova ◽  
I O Chulkov
Keyword(s):  
Mobile Communication ◽  
Communication Systems ◽  
Base Station ◽  
Military Operations ◽  
Radio Communication ◽  
Coverage Area ◽  
Remote Areas ◽  
Mobile Cellular ◽  
Mobile Stations ◽  
Large Sections

Abstract The authors of the article consider solutions needed to organize mobile cellular communication systems in remote areas. Modern mobile stations do not have the capability to overcome marshy areas, steppe, heavily rugged reliefs of the desert, water barriers and forests. Moreover, the coverage area from one base station is not highly localized (radio coverage area is not significant). Furthermore, modern mobile communication facilities have poor autonomy. The article proposes measures for an operational organization of cellular communications in large remote areas with a coverage radius of a medium-sized city. Article also considers the issues posed by a temporary organization of communication service in large sections near important locations (pipelines, riverbeds, transport and railway lines). The need for such an operational usage of mobile communication systems is most associated with geological exploration and scientific research in large remote areas and large areas with a damaged communication system due to natural emergencies or military operations.

scholarly journals Pengaruh Code Rate untuk Komunikasi RBS Femto Cell Frekuensi 47 GHz pada Tiang Lampu Jalan

2017 ◽  
Vol 9 (4) ◽  
pp. 412
Author(s):  
Andrita Ceriana Eska
Keyword(s):  
Communication Systems ◽  
Mobile Station ◽  
Code Rate ◽  
Base Station ◽  
Rate Variation ◽  
Coverage Area ◽  
Transmitter Power ◽  
Street Lamp ◽  
Noise Ratio ◽  
Area Percentage

This research describes about the communication systems at radio-base-station femto cell that placed at street lamp. The frequency 47 GHz used at that communication systems. The analysis in this research consist of transmitter power variation, and code rate variation from signal-to-interference-plus-noise-ratio threshold 16 QAM. The transmitter power consist of 10 mW until 200 mW. The code rate variation from signal-to-interference-plus-noise-ratio threshold 16 QAM consist of 1/2, 2/3, 3/4, and 4/5. As the result showed relation between transmitter power with using code rate and relation between coverage area percentage at mobile station track with using code rate. Based on the relation between coverage area percentage with code rate value that is more increase code rate value then the percentage coverage area was getting decrease.

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