PLENARY speaker 1
SOFTWARE DEFINED NETWORKING IN FOG COMPUTING: THE SWITCH MIGRATION TECHNIQUE
Prof. Dr. SHARIFAH HAFIZAH SYED ARIFFIN
Professor at Faculty of Electrical Engineering, Universiti Teknologi Malaysia.
Abstract:
Network traffic has expanded dramatically due to the Internet of Things’ (IoT) devices’ exponential expansion, making it difficult to manage load distribution and preserve performance in fog computing environments. The fog network can be controlled centrally via Software-Defined Networking (SDN) techniques; however, they frequently fail in dynamic and heterogeneous environments. Despite its ability to lower latency in IoT networks, fog computing had to deal with needless switch migrations brought on by erratic traffic spikes in the various performance capacities of fog nodes. A propose threshold awareness load classification algorithm able to provide improvement in misclassification of overload and under load controllers that helps switch migration module to make decision which will increment of network performance.
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PLENARY speaker 2
Design and Development of Multiband Intelligent Surfaces
Prof. Ts. Dr. MOHAMAD KAMAL A RAHIM
Professor at Faculty of Electrical Engineering, Universiti Teknologi Malaysia.
Abstract:
The multiband reflective metasurface proposes a unit cell design using multiple Split Ring Resonators (SRRs) that resonate at 8, 10, and 12 GHz. The proposed design employs an F4BMX220 substrate with a thickness of 1.5 mm as the dielectric substrate, featuring multiple SRRs on the top layer and a full ground plane on the bottom layer. The results show that the S11 magnitude is 0.94 at 8 GHz, 0.72 at 10 GHz, and 0.81 at 12 GHz, with the S21 magnitude being 0. The reflection phase is -32.2° at 8 GHz, -29.1° at 10 GHz, and -3.34° at 12 GHz. Overall, the results indicate good performance, with reflected power exceeding 50% at all desired frequencies.
PLENARY speaker 3
Demonstration of Automated Foreign Object Debris Detection System for 93.1 GHz Millimeter-Wave Surveillance Radar Utilizing Corner Reflectors
Prof. Ir. Dr. SEVIA MAHDALIZA IDRUS SUTAN NAMEH
Professor at Faculty of Electrical Engineering, Universiti Teknologi Malaysia.
Abstract:
Any foreign material found on the airfield is known as Foreign Object Debris (FOD) which can threaten the aircraft and airport operations. Detecting objects of various types and sizes is quite challenging due to the complex structure of the runway pavement and weak target echoes in long-distance monitoring. Several existing FOD radar system detection methods have short effective range and longer system throughput. However, in this paper, we propose an integrated millimeter-wave FOD radar detection to improve small detection targets under long-range conditions of over 500 m for three measurement areas during clear weather conditions. The experiment was carried out at an international airport in Kuala Lumpur, Malaysia. The results validate the effectiveness of the superior performance of the integrated millimeter-wave FOD detection system for long-range detection by evaluating the average Radar Cross Section (RCS) value, average detection probability, and percentage of detection per rotation for 9-interval point.
PLENARY speaker 4
Design and Characterization of Reconfigurable Fractal Microstrip Antennas below 10 GHz
Prof. Dr.-Ing. MUDRIK ALAYDRUS
Professor at Electrical Engineering, Universitas Mercu Buana, Jakarta.
Abstract:
Fractal antennas have the capability to work in different frequency bands. Embedding PIN diodes as switching elements to the antennas enables reconfigurability of the antennas. In this work we proposed a simple reconfigurable T-form Pythagorean-tree fractal microstrip antenna. The reconfigurable fractal antenna was simulated and fabricated on a 1.4 mm thick FR4 substrate with six PIN diodes connected inside. The computer simulation showed for several on-off diode conditions, different following resonant frequencies 1.52 GHz, 3.98 GHz, 4.23 GHz, 4.96 GHz, 5.12 GHz, and 7.56 GHz to 9.1 GHz. The calculated radiation patterns showed symmetrical or tilted directional characteristics depending on symmetrical or unsymmetrical on-off cases. Measurements confirmed the calculated results.
PLENARY speaker 5
Reconfigurable Intelligent Surfaces for Advanced
Wireless Networks and Wave Computing
Prof. Dr. MOHSEN KHALILY
Associate Professor at Institute for Communication Systems University of Surrey, United Kingdom.
Abstract:
This paper presents cutting-edge Reconfigurable Intelligent Surface (RIS) designs developed for controlling the wireless propagation environment. Through theoretical analysis, extensive simulations and accurate fabrication, we have evaluated the performance of reflective, transmissive, and Simultaneous Transmissive and Reflective (STAR) surfaces in key wireless communication environments. The findings of each configuration offer unique advantages in signal characteristics according to each deployment context. This work not only underscores the versatility of RIS technology but also delivers beneficial insights into deciding the proper RIS configuration based on application requirements.
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PLENARY speaker 6
A Compact Circular Patch Antenna with Efficiency Enhancement Using Annular Slot DGS
Prof. Ir. Dr. SHARUL KAMAL ABDUL RAHIM
Professor at Faculty of Electrical Engineering, Universiti Teknologi Malaysia.
Abstract:
This paper presents a circular patch antenna that enhanced efficiency by employing annular slot DGS (defected ground structure). The proposed antenna consists of an inset-fed circular radiation mounted on the top surface of 1.6 mm thick FR4 lossy substrate. At the substrate’s bottom side, an annular slot-loaded DGS is added in an effort to enhance the antenna efficiency. This compact antenna design works at 3.5 GHz with a fractional bandwidth (FBW) of 7.3%, operating between 3.38 GHz to 3.63 GHz. The proposed circular patch antenna offers a high efficiency exceeding 60%, without sacrificing the antenna gain.
PLENARY speaker 7
A Novel Reconfigurable HMSIW Antenna Design for Beam-Steering and Fixed-Bandwidth Applications
Prof. Dr. MOHAMED HIMDI
Professor at Universite de Rennes ,IETR
Abstract:
This paper presents a unified design combining two state-of-the-art reconfigurable Half-Mode Substrate Integrated Waveguide (HMSIW) antennas. The first design focuses on beam steering at a fixed frequency using varactor diodes, while the second integrates advanced field-programmable microwave substrates (FPMS) for fixed beam directions over a wide bandwidth. This work demonstrates the feasibility of combining these capabilities into a single antenna system, paving the way for more versatile applications in modern wireless communication.
PLENARY speaker 9
Application of Electromagnetic Simulations for Antenna Analysis
Prof. Dr. YOSHIHIDE YAMADA
Professor at Malaysia-Japan International Institute of Technology (MJIIT), Universiti Teknologi Malaysia
Abstract:
Recently electromagnetic (EM) simulations become very reliable and are conveniently used for antenna design, analysis and evaluation. Especially, the ability of visualization of physical appearances of electromagnetic performance at antennas is useful. In this presentation, firstly EM simulation methods are overviewed. Next, check point for obtaining correct simulation results of antenna performances are summarized. As a main part, effects of visualization are shown. Examples such as derivation of new structural equations at small wire antennas, analysis of lens antennas having positive and negative refractive index, reflector antenna performance and under water radio propagation are shown. Additionally, high speed calculation method for radar cross section calculation is shown.
PLENARY speaker 10
Design a Triple V-Slit Rectangular Patch with Asymmetric CPW Microstrip Antenna for Future Microwave Applications
Prof. Ir. Dr. BADRUL HISHAM AHMAD
Professor at Faculty of Electronics and Computer Technology and Engineering, Universiti Teknikal Malaysia Melaka
Abstract:
In this work, the proposed triple v-slit rectangular patch with asymmetric CPW microstrip antenna is designed to exhibit broad bandwidth, enabling an accurate future microwave applications system that has optimal functionality at an operating frequency of 586 MHz with – 62.404 dB. The design process involves optimizing key parameters such as antenna dimension and coplanar waveguide (CPW), simulated in CST Microwave Studio.