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All Journal Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) International Journal of Information System and Innovative Technology
Jusoh, Muzammil
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Aerospace Engineering Computer Science & IT Electrical & Electronics Engineering Engineering

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Development of Coordinated Control of Vehicle Traffic Flow at Adjacent Intersection Kurniawan, Freddy; Jusoh, Muzammil; Muminov, Bahodir; Alam, Hermansyah; Dermawan, Denny; Purnomo, Muhamad Jalu
Aviation Electronics, Information Technology, Telecommunications, Electricals, and Controls (AVITEC) Vol 7, No 1 (2025): February
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/avitec.v7i1.2823

Abstract

Traffic congestion in areas with two closely situated traffic lights is a complex issue that is often difficult to resolve. To address this issue, a coordination of timing between the two traffic controllers is proposed. This research conducts an experiment with two traffic controllers at two nearby intersections. The vehicle flow at each intersection is managed by the Agent acting as the traffic controller. The agent where more vehicles arrive is designated as the master agent, while the other agent is designated as the slave agent. A coordination algorithm is developed to synchronize the timing of the traffic controller so that the timing at the slave Agent was adjusted according to vehicle platoon arrivals from the master Agent. By this method, the green phase of the slave agent can be synchronized with the master agent, allowing vehicle platoons arriving from the master agent to immediately receive a green phase at the slave agent. This coordinated traffic control can be implemented with a microcontroller-based system, and vehicle movement can be simulated using Matlab's SimEvents. From the experiment conducted for two intersections located 500 meters apart, this scheme can reduce the average vehicle wait time from 40 seconds to just 9.4 seconds.
Reflection Phase Characterization of Metasurfaces Enabling Reflection and Transmission in Wireless Systems Maniam, Rajkumar; Sabapathy, Thennarasan; Nasrun Osman, Mohamed; Jusoh, Muzammil; PICHANDI, SIDDARTH
International Journal of Information System and Innovative Technology Vol. 4 No. 2 (2025): December
Publisher : Geviva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63322/2wzh1z83

Abstract

This paper presents the design and analysis of metasurfaces for surface-based wireless communication systems. Metasurfaces are widely used as reflecting or transmitting surfaces in wireless communications. The reflection phase characteristic of a metasurface plays an important role in determining its operating behavior, namely whether it functions as a reflector or a transmitter. In this work, a comprehensive analysis is conducted to obtain two distinct reflection phase characteristics of metasurface unit cells. The unit cells are analyzed at an operating frequency of 3.5 GHz. It is observed that the unit cell exhibits a reflection phase close to 0° when designed using two rectangular rings, while a reflection phase close to 180° is achieved when the unit cell is modeled as a square ring. In both designs, the unit-cell substrate size is fixed at 16.25 × 16.25 mm². The presented reflection phase characterization provides a clear design guideline for selecting metasurface unit-cell geometries to support reflection and transmission functionalities in future surface-based wireless communication systems.
Dipole Antenna Radiation Pattern Optimization Using Parasitic Element Size and Location Maniam, Rajkumar; Sabapathy, Thennarasa; Nasrun Osman, Mohamed; Gunasekaran, Shanmuka Rooban; Jusoh, Muzammil
International Journal of Information System and Innovative Technology Vol. 4 No. 2 (2025): December
Publisher : Geviva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63322/y85amh14

Abstract

This work focuses on refining the radiation pattern of a dipole antenna by introducing a parasitic element and carefully adjusting its size and position. A dual‑band response emerges when the parasitic element is set to a width of 9 mm. The study explores dimensions of 0.98 Wh, 0.90 Wh, 0.70 Wh, and 0.75 Wh. For the first three cases, the element is placed 9.4 mm away from the dipole antenna. In the 0.75 Wh case, however, the spacing is increased to 11.8 mm, which produces a clear improvement in gain. These results show how subtle changes in geometry and placement can significantly influence antenna performance, offering a straightforward path to achieving dual‑band operation with enhanced radiation characteristics.
Co-Authors Alam, Hermansyah Denny Dermawan Freddy Kurniawan Gunasekaran, Shanmuka Rooban Maniam, Rajkumar Muhamad Jalu Purnomo, Muhamad Jalu Muminov, Bahodir Nasrun Osman, Mohamed PICHANDI, SIDDARTH Sabapathy, Thennarasa Sabapathy, Thennarasan