Tiengthong, Thanadol

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Tiengthong, Thanadol
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thanadol.ti@kmitl.ac.th

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    Item type:Publication,
    A Study of Improved Indoor Localization Accuracy using Looping Min-Max Technique
    (2024-01-01)
    Tiengthong, Thanadol
    ;
    Mankong, Thanadon
    ;
    Suwansukho, Nattapan
    ;
    Southisombath, Phouthong
    ;
    Chaisang, Aditep
    This paper investigates the efficacy of WLAN technology at 5.8 GHz for indoor localization, a widely adopted and versatile approach due to its adaptability and ease of implementation. The choice of 5.8 GHz frequency offers several advantages, including reduced interference and higher data transmission rates, enhancing the precision and reliability of localization systems. Utilizing Received Signal Strength (RSS) for distance calculation is employed due to its computational simplicity and efficiency. The proposed methodology employs a modified Min-Max technique for estimating positions, iterating the Min-Max process until the distance error aligns with a predefined threshold. Comparative evaluation using Cumulative Distribution Function (CDF) demonstrates improved accuracy compared to conventional Min-Max methods. The research findings indicate promising enhancements in accuracy and efficacy for indoor localization using WLAN technology at 5.8 GHz. These advancements hold significant potential for real-time indoor localization applications, paving the way for improved indoor navigation and tracking systems in the future.
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    Item type:Publication,
    Experimental Study of TETRA Radio for Railway Communication with Leaky Feeder Configuration
    (2023-01-01)
    Suwansukho, Nattapan
    ;
    Chaisang, Aditep
    ;
    Tiengthong, Thanadol
    ;
    Promwong, Sathaporn
    In railway voice communication, the digital radio communication, that are widely used whether along the trackside and in the tunnels especially in urban area. The TETRA standard was selected to be used for fulfill the railway operations requirement. Almost TETRA radio system, the configuration almost carried out with the leaky cable configuration This paper presents the experimental study of TETRA radio system with leaky cable configuration, that being used in the railway communication. The frequency being used are between 385-400 MHz. The result shows the calculated received power compared to the actual received signal with the position of train antenna that closed to the leaky cable, the distance is approx. 3 meters.