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检索条件"机构=Telecommunication Engineering Program Department of Electrical Engineering Electronic Engineering"

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Design and Analysis of Optical Fiber Network Link Design between Sendawar and Long Bagun 6

Design and Analysis of Optical Fiber Network Link Design bet...

引用

6th International Conference on Cybernetics and Intelligent System, ICORIS 2024

作者： Hitipeuw, Andrano Mario Natali, Yus Apriono, Catur Department of Electrical Engineering Universitas Indonesia Depok Indonesia Telecommunication Engineering Program Telkom University Jakarta Indonesia

ISBN: (纸本)9798331539603

Fiber optic network infrastructure is being developed to significantly enhance internet accessibility in remote areas, which is crucial for socio-economic development. This study presents a proposed fiber optic network for the Long Bagun and Sendawar regions, located in East Kalimantan, Indonesia. The network design emphasizes an efficient construction layout to reduce deployment costs and ensure stable, high-speed connectivity. Key technical analyses include the link power budget, rise time, and bit error rate (BER), calculated to meet optimal performance standards. The findings indicate that the proposed network infrastructure may reliably support broadband services, thereby enabling improved access to education, healthcare, and economic opportunities. Calculated and simulated parameters are shown to fall within acceptable limits, reinforcing the system’s viability for practical implementation. © 2024 IEEE.

关键词： Bit error rate

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Fronthaul Design and Analysis with Radio over Fiber and Wavelength Division Multiplexing 1

Fronthaul Design and Analysis with Radio over Fiber and Wave...

引用

1st IEEE International Symposium on Consumer Technology, ISCT 2024

作者： Shabira, Hanna Putri Natali, Yus Apriono, Catur Universitas Indonesia Department of Electrical Engineering Depok Indonesia Telecommunication Engineering Program Telkom University Jakarta Indonesia

ISBN: (纸本)9798350365191

Radio over Fiber (RoF) emerges as a promising candidate for 5G networks, particularly in cloud radio access network (CRAN) systems, where centralized signal processing offers reduced latency and enhanced transfer speeds. Millimeter Waves (mmWave) are gaining attention for their potential in high-capacity, long-range communication systems, further fueling the 5G revolution. This research proposes a design employing a 4×1 RoF scheme using Dense Wavelength Division Multiplexing (DWDM) with Fiber Bragg Grating (FBG) as a dispersion compensator. Simulation results demonstrate the viability of both downstream and upstream configurations, meeting International telecommunication Union (ITU) Standards for Q Factor and Bit Error Rate (BER). While challenges such as signal-to-noise ratio (SNR) decline with transmission distance persists, strategic system design and component selection is essential for mitigating these issues, ensuring optimal performance in 5G networks. © 2024 IEEE.

关键词： Bit error rate

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Performance of Radio over Fiber from Radio to Millimeter-wave Spectrum for A Fronthaul Optical Network 13

Performance of Radio over Fiber from Radio to Millimeter-wav...

引用

13th IEEE International Conference on Communication, Networks and Satellite, COMNETSAT 2024

作者： Al Faruq, Syafiq Maulana Natali, Yus Apriono, Catur Universitas Indonesia Department of Electrical Engineering Depok Indonesia Telkom University Telecommunication Engineering Program Jakarta Indonesia

ISBN: (纸本)9798350368086

Radio over fiber (RoF) technology enables the transmission of radio signals over optical fiber, offering reliable and high-performance connectivity for front-haul applications. This is particularly beneficial in the context of 5G cellular networks, where there is a demand for robust and efficient front-haul connectivity to support the high data rates and low latency requirements of 5G applications and services. Using RoF, 5G cellular networks can achieve improved reliability, flexibility, and performance in their front-haul infrastructure. This research investigates the performance of a proposed RoF network for front-haul applications by considering the Q-factor parameter using OptiSystem. The findings from the study demonstrate that radio-over-fiber (RoF) technology is highly suitable for operating within the millimeter wave spectrum, specifically at frequencies as low as 10 GHz. As the frequency escalates to 40 GHz and beyond, the system's performance becomes saturated, yielding a Q factor of approximately 23 for upstream transmission and 19 for downstream transmission. It is important to note that careful consideration and strategic planning are vital for the effective and efficient implementation of RoF, especially when it comes to managing spectrum usage. © 2024 IEEE.

关键词： Radio-over-fiber

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Study on Effects of Line Coding and Power Variations on the Uplink Scheme of 8-Channel WDM-FSO HAP for 5G Applications

Study on Effects of Line Coding and Power Variations on the ...

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2024 IEEE International Conference on Industry 4.0, Artificial Intelligence, and Communications Technology, IAICT 2024

作者： Suryono, Valerie Olive Natali, Yus Apriono, Catur Department of Electrical Engineering Universitas Indonesia Depok Indonesia Telecommunication Engineering Program Telkom University Jakarta Indonesia

ISBN: (纸本)9798350353464

This study discusses the Wavelength Division Multiplexing-based Free-Space Optics (WDM-FSO) communication system over HAPs for 5G applications. It aims to evaluate the potential of this system in meeting the need for reliable 5G connectivity. Through simulations using OptiSystem, the research explores the implementation of HAPs with a focus on uplink connectivity between ground stations and HAPs. The study examines the influence of line coding, transmission power, atmospheric conditions, and altitude on the Log-Bit Error Rate (Log-BER) and system quality factor (Q-Factor). The results show that RZ line coding is effective in altitude variations, while NRZ is better in weather variations. Power variations do not show significant changes in line coding. This research illustrates the potential of WDM-FSO technology on HAPs to support reliable wireless connectivity in the future. ©2024 IEEE.

关键词： Bit error rate

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Optical Link Design of 5G Triple-Band Radio over Fiber Using Wavelength Division Multiplexing Technique 25

Optical Link Design of 5G Triple-Band Radio over Fiber Using...

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25th International Seminar on Intelligent Technology and Its Applications, ISITIA 2024

作者： Al Faruq, Syafiq Maulana Natali, Yus Apriono, Catur University of Indonesia Department of Electrical Engineering Depok Indonesia Telkom University Telecommunication Engineering Program Jakarta Indonesia

ISBN: (纸本)9798350378573

The need for communication networks with high speed and capacity continues to increase along with the development of information and communication technology. 5G technology applied to Radio over Fiber accompanied by Wavelength Division Multiplexing can meet these needs. Fronthaul schemes were designed with radio frequencies of 0.7, 2.6 and 26 GHz. Simulations in the upstream and downstream schemes showed that channel 1 and channel 2 in the upstream scheme had reached the target with a BER value of less than 1e009 and a Q Factor of more than 6. In the downstream scheme, no channel reaches the target. © 2024 IEEE.

关键词： Radio-over-fiber

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Multi-Objective Hybrid LF-GWO Based Optimal Location and Sizing of Multiple PV-DSG Units for Voltage Profile Improvement 6

Multi-Objective Hybrid LF-GWO Based Optimal Location and Siz...

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6th International Conference on Power, Energy and Innovations, ICPEI 2024

作者： Pengtem, Chaimongkol Janjamraj, Natin Romphochai, Sillawat Ngaemngam, Surin Bhumkittipich, Krischonme Faculty of Engineering Department of Electrical Engineering Pathum Thani Thanyaburi12110 Thailand Faculty of Engineering Department of Electronic and Telecommunication Engineering Pathum Thani Thanyaburi12110 Thailand

ISBN: (纸本)9798350356779

This paper proposes the optimal location and sizing of Photovoltaics (PV) and Diesel Generator (DSG) units which aim to decrease the total active power loss and enhance the voltage profiles. According to the voltage instability in the power system, many types of energy sources and methodologies were applied to improve the power loss and voltage profile. The hybrid levy flight (LF)-grey wolf optimizer (GWO) technique is proposed to solve the problem of the optimal location and sizing of DSG and PV units. Moreover, the multi-objective functions are also proposed in this paper using three objective functions: power loss reduction, total cost reduction, and carbon emission reduction, respectively. The IEEE 33 bus test system is selected to verify the proposed methodology. The simulation results showed that the optimal DSG sizing is 846 kW installed at bus no.16 and bus no.29. The optimal PV sizing is 100 kW installed at bus no.13 and bus no. 20, reducing the active power loss by 51 %. Moreover, the overall cost reduction of the grid system can be minimized by 3.9 %, and the carbon emission reduction can be reduced by 12.7%. Therefore, it can be verified that the multi-objective hybrid LF -GWO-based on the best location and sizing of hybrid PV - DSG units can satisfy the grid code requirement. © 2024 IEEE.

关键词： Emission control

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Performance Analysis of One Tier and Two Tier Fuzzy Systems for Cluster Head Election in Wireless Sensor Networks 16

Performance Analysis of One Tier and Two Tier Fuzzy Systems ...

引用

16th IEEE AFRICON, AFRICON 2023

作者： Onyango, Catherine Lang'at, Kibet Konditi, Dominic Department of Electrical Engineering Nairobi Kenya Department of Telecommunication & Information Engineering Nairobi Kenya Department of Electrical & Electronic Engineering Nairobi Kenya

ISBN: (纸本)9798350336214

Sensor nodes are devices deployed in target environments to sense and forward data to base stations for different applications. These form wireless sensor networks (WSNs) applied in agriculture, health systems, underground and underwater monitoring, and body area networks. The nodes are battery-powered and, in most applications, not rechargeable. Consequently, the nodes no longer participate in the network once the energy is depleted. The small size of these nodes poses a challenge of limited energy storage, thus making research on energy efficiency a critical area in wireless sensor networks. Clustering techniques are a popular strategy in energy management, and recent research has utilized fuzzy logic in cluster head selection. One-tier and two tier fuzzy systems used in cluster head selection are compared. Four input variables, residual energy, centrality, move speed, and pause time, determine the chance of a node being elected as cluster head. The one-tier feeds all four inputs to one fuzzy inference system. In contrast, the two-tier feeds the speed and time into the first fuzzy inference system, giving an output of the mobility factor, then feeds this as input in addition to the residual energy and centrality to the second fuzzy inference system. Performance is measured based on the network lifetime, energy consumption, and fuzzy system complexity. The one-tier system is found to have higher accuracy for four input variables, leading to lower energy consumption but at the expense of higher design complexity. © 2023 IEEE.

关键词： Fuzzy systems

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Characterizing Coastal Wave Energy Dynamics Using Enhanced FMCW Radar Signal Processing Techniques 16

Characterizing Coastal Wave Energy Dynamics Using Enhanced F...

引用

16th International Symposium on electronics and telecommunications, ISETC 2024

作者： Chawraba, Assil Randazzo, Andrea Cavigila, Daniele D. Department of Electrical Electronic Telecommunication Engineering Genoa Italy Lebanese University Beirut Lebanon

ISBN: (纸本)9798350390865

Accurately characterizing wave energy dynamics in coastal regions is critical for applications ranging from renewable energy assessment to coastal safety and environmental monitoring. This paper introduces an advanced methodology that leverages Frequency Modulated Continuous Wave (FMCW) radar technology, enhanced by sophisticated signal processing techniques, to analyze and quantify wave energy in near-shore environments. By focusing on the normalized power spectrum, we explore how different wave conditions influence the distribution of energy across various frequencies. Our approach involves a comparative analysis of multiple signal processing methods, including Fast Fourier Transform (FFT), to enhance the accuracy and resolution of wave energy measurements. Experimental results from field tests conducted in coastal areas demonstrate the effectiveness of these techniques, revealing significant improvements in the radar's ability to capture detailed wave dynamics. The findings underscore the potential of this enhanced FMCW radar system as a reliable and cost-effective tool for real-time coastal monitoring, offering valuable insights for applications such as renewable energy forecasting and the protection of coastal infrastructure. This study contributes to the growing body of research on non-contact hydrological sensing, highlighting the critical role of signal processing in advancing the precision and utility of radar-based wave energy assessments. © 2024 IEEE.

关键词： Fast Fourier transforms

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High efficiency control of AC-DC Matrix based buck converters: DCM modulation

High efficiency control of AC-DC Matrix based buck converter...

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2024 IEEE Energy Conversion Congress and Exposition, ECCE 2024

作者： Rodkin, Dmytro Formentini, Andrea Passalacqua, Massimiliano Vaccaro, Luis Marchesoni, Mario University of Genoa Electrical Electronic Telecommunication Engineering and Naval Architecture Department Genoa Italy

ISBN: (纸本)9798350376067

A discontinuous conduction mode (DCM) technique is presented to enhance the efficiency of an AC-DC matrix based buck converter. A new modulation scheme is developed to ensure proper converter operation in DCM preventing input current distortion. System performance in terms of total harmonic distortion (THD) including comparison with continuous conduction mode (CCM) operation is examined experimentally. Conduction and switching losses under different grid voltage in both modes are compared via simulation. © 2024 IEEE.

关键词： Buck converter

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1D Beam Switching Four Element Microstrip Patch Array Antenna with Planar 90° Hybrid Coupler 3

1D Beam Switching Four Element Microstrip Patch Array Antenn...

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3rd International Conference on Advancement in electrical and electronic engineering, ICAEEE 2024

作者： Das, Debprosad Hossain, Md. Azad Rahman, Muhammad Asad Paul, Liton Chandra Chittagong University of Engineering and Technology Department of Electronics and Telecommunication Engineering Chattogram Bangladesh Chittagong University of Engineering and Technology Department of Electrical and Electronic Engineering Chattogram Bangladesh Pabna University of Science and Technology Dept. of Electrical Electronic and Communication Engineering Pabna Bangladesh

ISBN: (纸本)9798350388282

This paper designs and simulates a 2 × 2 microstrip patch array antenna for one-dimensional beam switching applications in the sub-6 GHz 5G frequency band. It incorporates a planar 90° hybrid coupler to generate a signal with phase difference between two parallel microstrip lines. A vertically flipped 'T'-shaped slot line, measuring 0.1 mm in width, has been cut in the ground plane to create a 'Magic-T' junction in the middle of the design. This allows the in-phase and out-of-phase signals to propagate separately along the slot line of the ground plane, while the hybrid circuit and patch are positioned on top of the Teflon Glass Fiber substrate. At the Magic-T junction, the Σ and Δ signals from the coupled parallel microstrip lines are split apart and sent to the patches that have a phase difference. According to the simulated findings, the antenna can switch its beam up to a maximum of ±17° throughout the frequency range of 3.44 GHz to 3.60 GHz while maintaining a main lobe gain of more than 20 dB and a side lobe level differential with a main lobe gain of more than 10 dB. © 2024 IEEE.

关键词： Electric connectors

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