<![CDATA[The rapid development of the Internet of Things (IoT) has increased the demand for communication technologies that can provide wide coverage, low power consumption, and efficient spectrum utilization. One of the technologies developed to meet these requirements is Narrowband Internet of Things (NB-IoT), which is specifically designed to support low-data-rate IoT services with massive device connectivity. This study aims to design and analyze the performance of an NB-IoT network operating at 900 MHz using a standalone deployment scheme in the Yogyakarta region. The research method is carried out through network planning simulations using a link budget approach to estimate cell coverage, combined with the Okumura-Hatta Urban propagation model, which is suitable for urban environments. Network performance evaluation is conducted by analyzing key parameters, including Reference Signal Received Power (RSRP), Signal to Interference plus Noise Ratio (SINR), and downlink throughput. The simulation results show that the average RSRP value is −108.52 dBm, indicating relatively wide signal coverage. In addition, the average SINR value of 10.33 dB demonstrates good signal quality in the presence of interference and noise. Meanwhile, the average downlink throughput of 89.27 kbps indicates that the network is capable of efficiently supporting low-data-rate transmissions. Based on these results, it can be concluded that the standalone NB-IoT network design at 900 MHz in the Yogyakarta region is feasible for implementation. The network provides wide coverage, adequate signal quality, and performance suitable for supporting low-data-rate IoT applications, such as smart metering.]]>
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