Electronic Theses and Dissertation

Teknologi komunikasi seluler kini memasuki generasi keenam (6G) yang menjanjikan kecepatan data 1 Tbps–10 Tbps serta mendukung Internet of Everything (IoE), Virtual Reality (VR), dan Artificial Intelligence (AI). Berdasarkan World Radio Communication Conference (WRC) 2023, Indonesia memperoleh alokasi spektrum 7 GHz untuk 6G, namun frekuensi ini dinilai belum optimal untuk mewujudkan smart city sehingga diperlukan penggunaan mmWave yang memiliki kapasitas besar namun jarak jangkau terbatas. Penelitian ini merancang dan menganalisis kinerja propagasi mmWave 6G di wilayah urban Kota Banda Aceh menggunakan model 3GPP TR 38.901 pada frekuensi 28 GHz, 38 GHz, 73 GHz, dan 142 GHz dalam kondisi Line-of-Sight (LOS) dan Non-Line-of-Sight (NLOS) dengan simulator NYUSIM pada jarak 50–100 meter. Hasil menunjukkan bahwa peningkatan frekuensi dan jarak mengakibatkan kenaikan pathloss dan delay spread, serta penurunan daya terima. Seperti pada frekuensi 28 GHz kondisi LOS, pathloss sebesar 106,7 dB dengan daya terima –76,7 dBm dan delay spread 24,92 ns, sedangkan pada frekuensi 142 GHz kondisi NLOS, pathloss meningkat hingga 144,9 dB dengan daya terima –114,9 dBm dan delay spread 34,66 ns. Selain itu, shadow fading relatif stabil pada kondisi LOS (2,6 dB–4,0 dB), namun meningkat signifikan pada kondisi NLOS (7,0 dB–8,2 dB). Hasil penelitian ini menunjukan bahwa pemilihan frekuensi dan skenario propagasi menjadi faktor penting dalam perencanaan jaringan mmWave 6G di lingkungan urban.

Kata Kunci: 6G, mmWave, pathloss, daya terima, delay spread, shadow fading, NYUSIM

Cellular communication technology has now entered the sixth generation (6G), which promises data rates of 1Tbps–10 Tbps and supports the Internet of Everything (IoE), Virtual Reality (VR), and Artificial Intelligence (AI). According to the World Radio Communication Conference (WRC) 2023, Indonesia has been allocated a 7 GHz spectrum for 6G. However, this frequency is considered suboptimal for realizing smart cities, thereby requiring the utilization of millimeter wave (mmWave) technology, which provides high capacity but limited coverage. This study analyzes the propagation performance of 6G mmWave in an urban area of Banda Aceh using the 3GPP TR 38.901 model at frequencies of 28 GHz, 38 GHz, 73 GHz, and 142 GHz under Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS) conditions, simulated with NYUSIM at distances ranging from 50 to 100 meters. The results indicate that increasing frequency and distance lead to higher pathloss and delay spread, as well as lower received power. For instance, at 28 GHz under LOS conditions, the pathloss is 106,7 dB with a received power of –76,7 dBm and a delay spread of 24,92 ns, whereas at 142 GHz under NLOS conditions, the path loss increases to 144,9 dB with a received power of –114,9 dBm and a delay spread of 34,66 ns. In addition, shadow fading remains relatively stable under LOS conditions (2,6 dB–4,0 dB) but increases significantly under NLOS conditions (7,0 dB–8,2 dB). These findings highlight that frequency selection and propagation scenarios are critical factors in designing 6G mmWave networks in urban environments. Keywords: 6G, mmWave, pathloss, received power, delay spread, shadow fading, NYUSIM