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Pakkasit Sriamorntrakul

Publications and source records attributed to Pakkasit Sriamorntrakul.

3 recordsLinked to original sources

Comparison of 5G Performance Post-Merger between Two Network Operators Using Field Tests in Urban Areas

In late Q1/2023, DTAC and TRUE officially completed their merger. Consequently, this study was initiated to ascertain whether their respective 5G networks had been seamlessly integrated several months following the merger. The investigation involved conducting drive tests along two predefined routes within the urban areas of Bangkok, employing the G-NetTrack Pro tool for testing and data collection. Additionally, stationary tests were conducted in two crowded places using an application called Speedtest. Subsequently, an array of Quality of Service (QoS) metrics, including Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Signal to Noise Ratio (SNR), Download (DL), Upload (UL) speeds, and latency, were meticulously analyzed and presented. The findings of this study unveiled that, despite the successful completion of the DTAC and TRUE merger from a business standpoint, the technical integration of their respective 5G networks had not been finalized, although there were no significant differences between DTAC and TRUE for DL (p-value = 0.542) and UL (p-value = 0.090). Notably, significant differences were found between DTAC and TRUE for four metrics, including RSRP, RSRQ, SNR, and latency (p-values < 0.05). Remarkably, roaming functionalities were still operational between the two networks.

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5G Quality of Service in Bangkok and Metropolitan Areas: Revisiting BTS Skytrain Station Areas

This article compares two of the leading mobile network operators in Thailand's telecom market in terms of the service quality of Thailand's 5G networks. The following three factors, download speed, upload speed and latency, which are frequently considered to be indicators of the quality of Internet networks, were examined. The researchers employed the test results to determine an average grade of service that was reached by comparing newly collected data to data that had previously been examined utilizing the same format and application in the middle of May 2021. The typical upload speed dropped from 62.6 Mbps in 2021 to 52.0 Mbps in 2023, while the latency increased from 14.9 to 23.3 milliseconds on average. It was established that the results delivered considerably enhanced quality values despite the fact that the test region in this study only comprised BTS stations. Furthermore, this was the case despite the fact that the test area in this study only encompassed a small percentage of the total population.

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Analyzing Bank Account Information of Nominees and Scammers

Nowadays, people heavily rely on the Internet for various activities, such as e-commerce (e.g., online shopping) and online banking. While online transactions are practical, they also provide scammers with a new way to exploit unsuspecting individuals. This study and investigation utilized data from ChaladOhn, a website designed and developed by academics and policemen. The data covered the period from February 2022 to January 2023. After analyzing and investigating, the results reveal that the total losses amounted to over 3,100 million Thai Baht, with each case incurring losses of less than 10 million. Furthermore, the investigation discovered the involvement of the top two banks in the market, KB*** and BB*, in the fraud. These banks accounted for: 1) 28.2% and 16.0% of the total number of scam accounts, 2) 25.6% and 20.5% of the total transactions, and 3) 35.7% and 14.9% of the total losses from the victims as recorded in the database, respectively. Considering the anticipated deterioration of this issue, it is crucial to inform regulators and relevant organizations about the investigation's findings. This will enable the development, suggestion, and implementation of an efficient solution to address the rapidly increasing number of online scam cases.

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