system base station antennas
Compact Base Station Antennas Using Metamaterials
... Metamaterials are intensely used for the design of directive antennas [1–4]. In [1], Enoch et al. proposed to use the refractive properties of a low optical index material interface in order to achieve a directive ...
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Analysis of the performance of massive MIMO systems
... Figure-1. System model of Massive MIMO. A MU-MIMO system consisting of a base station equipped with antennas and active users is considered, as shown in ...the base ...
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New Transmission Scheme Based on Space Time Code for Massive MIMO
... The system model of the proposed scheme is shown in Figure 1, which contains K users and a base ...4 antennas and the base station is equipped with N N ( ≥ 4 K ) ...two antennas ...
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The Research of Beam Forming Algorithms In Cognitive Radio Systems
... user base station configuration 8 antennas, Main user configuration 1 antennas, In the heterogeneous network of sub users, Macro cellular base station considered 3 ...
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The impact of base station antennas configuration on the performance of millimetre wave 5G networks
... The network model is illustrated in fig.2, it consists of millimetre wave nodes that connect a number of User Equipment (UE) symbolised by the red dots, that either communicates directly to the central node (BBU) or ...
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A Compact Wideband Dual Polarized Printed Antenna with Coaxial Feeds for TD SCDMA Application
... dipole antennas have attracted much attention [5]-[10] for the development of wi- deband dual-polarized base station ...dipole antennas with two DC grounded coaxial feeds and backed by a PEC ...
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Investigation of Different Types of Microstrip Array Structures for Smart Cellular Base Station Antennas
... Smart antennas used in Global System for Mobile Communications (GSM) systems can effectively maximum capacity and improve reliability and coverage by directing beam patterns towards the desired signals and ...
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Adaptive antennas at the mobile and base stations in an OFDM/TDMA system
... the base station (BS) of wire- less communications systems, and these have shown that signifi- cant system performance improvement is ...adaptive antennas at the BS and mobile stations (MS), ...
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Investigation of electromagnetic radiation emitted from mobile base stations in Khartoum state
... telephone system: base station antenna and mobile phone or hand set ...from base station antennas is continuous, irradiates the whole body and expose an entire community in ...
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Energy Efficient Resource Allocation in OFDMA Systems with Large Numbers of Base Station Antennas N Pavan Kumar
... Nowadays, next generation mobile communication systems have became popular all around the world. However, its services cannot provide a very big dynamic range of data rates, nor can it meet the requirements of a variety ...
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Measurement and Computational Modeling of Radio-Frequency Electromagnetic Power Density Around GSM Base Transceiver Station Antennas
... Global System for Mobile (GSM) communications has rapidly grown, and the increased demand in global markets has made GSM900/1800 the most popular antennas [2, 3], being widely used throughout the country ...
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A Broadband Dual-Polarized Arm-Overlapped Dipole Antenna for Base Station Applications
... the antennas for base stations are undergoing tremendous ...mature antennas for 2G/3G/4G base stations are wideband dual-polarized ...the system capacity and signal-to-noise ...dipole ...
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Performance of Block Diagonalization Scheme for Downlink Multiuser MIMO System with Estimated Channel State Information
... multiple antennas at transmitter and re- ceiver have received a considerable ...MIMO system typically consists of a base station equipped with multiple antennas and a number mobile ...
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Review paper on Massive 5G Wireless Systems with Channel State Information
... MIMO system. The massive system is equipped with the large array of antennas at the Base Station (BS) serving multiple single antenna users simultaneously ...BS antennas are ...
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An Array System of Multi-Cell Multiuser MIMO Network in Uplink Transmission
... MIMO system having large number of base station antennas compared to the number of users is ...transmit antennas at the BS can be exploited widely and such systems implicitly serves the ...
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A Review on MIMO Cognitive Radio User Selection Network using Multiple CBD and Primary Channel State Information
... cellular system, the base station is equipped with M antennas and each user terminal equipped with one or more antennas, Figure 7 shows two kinds of channels in the MU-MIMO ...
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Tower Base Station Safety System Using GSM Technology
... sensing system, signal conditioning electronic circuits, advanced embedded hardware for middle level computing, and a powerful computer network for further transmission of data to various ...
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Control of Urban Water Systems using SCADA System
... the system in an acceptable manner, the parameters or indexes that form the basis of operations need to be ...store system wide pressures, flows, and tank water ...into system operations as it ...
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CDMA Based Secure Cellular Communication via Satellite Link
... To overcome the limitation, a micro/pico BTS with limited coverage area plugged to a portable satellite terminal like GSAT-12 terminal can be used for an instant restoration of the communication link. Keeping apart the ...
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An Enhanced Difference Method for Multi objective Model of Cellular Base Station Antenna Configurations
... and base station antenna configurations with fine-grained grid division developed in [8], and an enhanced difference method is designed for the proposed ...
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