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Teknik Pengiriman File Audio Berbasis Software Defined Radio pada Kanal Komunikasi dalam Ruangan dengan Multicarrier OFDM
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ABSTRAK
Transmisi audio pada kanal indoor dipengaruhi oleh efek multipath fading yang dapat mengganggu kualitas sinyal. Multicarrier OFDM digunakan sebagai solusi untuk mengatasi fenomena ini. Penelitian ini mengkaji tentang karakteristik kanal indoor dan transmisi audio dengan multicarrier OFDM berbasis SDR. Simulasi menggunakan NI-USRP2920, RTL2832U, GNU Radio dan Matlab pada kondisi NLOS dan LOS. Analisa kanal berdasarkan parameter CCDF menunjukkan daya sinyal maksimum pada kondisi NLOS (0,535 dB) lebih rendah dibandingkan LOS (1,214 dB), menandakan multipath fading yang lebih signifikan. Transmisi audio dengan modulasi BPSK, QPSK, 16-QAM pada kondisi NLOS menunjukkan nilai BER secara berurutan 0.26880, 0.37976, 0.49522. Sementara untuk kondisi LOS, secara berurutan 0, 0, 0.00020. Hasil ini menunjukkan modulasi yang lebih sederhana pada multicarrier OFDM meningkatkan ketahanan terhadap multipath fading.
Kata kunci: Audio, Kanal Indoor, Multicarrier OFDM, Multipath Fading, SDR
ABSTRACT
Audio transmission on indoor channels is affected by the effect of multipath fading which can interfere with signal quality. Multicarrier OFDM is used as a solution to overcome this phenomenon. This study examines the characteristics of indoor channels and audio transmission with SDR-based OFDM multicarrier. The simulation uses NI-USRP2920, RTL2832U, GNU Radio and Matlab under NLOS and LOS conditions. Channel analysis based on CCDF parameters showed that the maximum signal power under NLOS conditions (0.535 dB) was lower than that of LOS (1.214 dB), indicating a more significant multipath fading. Audio transmission with BPSK, QPSK, 16-QAM modulation under NLOS conditions showed BER values of 0.26880, 0.37976, 0.49522 respectively. Meanwhile, for LOS conditions, 0, 0, 0.00020 respectively. These results show that simpler modulation of OFDM multicarriers improves resistance to multipath fading.
Keywords: Audio, Indoor Channel, Multicarrier OFDM, Multipath Fading, SDR
Kata Kunci
Teks Lengkap:
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Alsaify, B. A., Almazari, M. M., Alazrai, R., & Daoud, M. I. (2020). A dataset for Wi-Fi-based human activity recognition in line-of-sight and non-line-of-sight indoor environments. Data in Brief, 33. https://doi.org/10.1016/j.dib.2020.106534
Aryanta, D., Darlis, A. R., & Mulyadi, Y. (2016). Perancangan dan Implementasi Sistem Orthogonal Frequency Division Multiplexing (OFDM) dengan Menggunakan DSKTMS320C6713. Jurnal Elektro dan Telekomunikasi Terapan, 2(2). https://doi.org/10.25124/jett.v2i2.107
Fatmawaty, & Mufty. (2020). Analisis Perbandingan Kompresi File Wav Menggunakan Metode Huffman dan Run Length Encoding. Jurnal Teknologi Informasi dan Terapan, 7(1). https://doi.org/10.25047/jtit.v7i1.139
Hayati, R. (2020). Simulasi Kinerja DSSS Menggunakan Kode Barker Pada Kanal Rayleigh Fading. Jurnal Litek : Jurnal Listrik Telekomunikasi Elektronika, 17(2), 42. https://doi.org/10.30811/litek.v17i2.2052
Hendry, J., Isnawati, A. F., & Pamungkas, W. (2018). Analysis of Position Angle of Arrival in Multipath Fading Channel using Correlated Double Ring Channel Model for VANET Communications. Jurnal Infotel, 10(2). https://doi.org/10.20895/infotel.v10i2.372
Isnawati, A. F., Pamungkas, W., & Praja, M. P. K. (2022). Sistem Komunikasi Kendaraan Bergerak. Wawasan Ilmu.
Kumar, A. (2022). Design and Simulation of OFDM for BPSK, QPSK and QAM with Peak Power Reduction Using Clipping Technique. Journal of Optical Communications, 43(2). https://doi.org/10.1515/joc-2018-0207
Kusuma, D. T. (2020). Fast Fourier Transform (FFT) Dalam Transformasi Sinyal Frekuensi Suara Sebagai Upaya Perolehan Average Energy (AE) Musik. PETIR, 14(1), 28–35. https://doi.org/10.33322/petir.v14i1.1022
Hadiansyah, W. M. (2021). Estimasi Kanal Sistem OFDM pada Kanal Fading Rayleigh dengan Metode Piece-wise Linear. Journal of Computer, Electronic, and Telecommunication, 1(2). https://doi.org/10.52435/complete.v1i2.70
Molla, D. M., Badis, H., George, L., & Berbineau, M. (2022). Software Defined Radio Platforms for Wireless Technologies. IEEE Access, 10. https://doi.org/10.1109/ACCESS.2022.3154364
Pamungkas, W., Isnawati, A. F., Larasati, S., Jayati, A. E., Ardina, E. N., & Hendry, J. (2023). Channel Sounder in Indoor Environment with Multipath Fading using Software Defined Radio. Proceeding - COMNETSAT 2023: IEEE International Conference on Communication, Networks and Satellite. https://doi.org/10.1109/COMNETSAT59769.2023.10420747
Syam, E. (2018). Analisa dan Implementasi Transformasi Analog to Digital Converter (ADC) untuk Mengkonversi Suara Kebentuk Teks. SATIN - Sains dan Teknologi Informasi, 3(2). https://doi.org/10.33372/stn.v3i2.369
Winda, P., & Endah, S. (2021). Analisis Perbandingan 16-QAM dan 64-QAM Pada Kanal AWGN untuk Sistem Komunikasi Nirkabel. Telecommunications, Networks, Electronics, and Computer Technologies, Vol.1 (2), 71–76.
Wyglinski, A., & Pu, D. (2013). Digital Communication Systems Engineering With Software-Defined Radio. Artech.
Zainudin, A., Sudarsono, A., & Astawa, I. G. P. (2014). Performance Analysis of an OFDM PHY Scheme with Zero Forcing Equalizer Using Software Defined Radio Platform and USRP. EMITTER International Journal of Engineering Technology, 2(1). https://doi.org/10.24003/emitter.v2i1.15
DOI: https://doi.org/10.26760/elkomika.v12i4.908
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