Desain Program Simulasi Unjuk Kerja Kode Pn Pada Kanal Multipath Fading

Abstract

refleksi dan scattering pada sinyal informasi dimana akan mengurangi kualitas sinyal informasi diterima pada sisi penerima. Hal tersebut mengakibatkan adanya sifat konstruktif maupun destruktif pada sinyal di sisi penerima. Contoh sifat destruktif yang sering terjadi yakni fading dan delay . Sistem penerima correlation receiver diimplementasikan guna mengatasi masalah yang timbul akibat efek dari multipath fading . Untuk memperoleh sinyal dengan nilai error minimum, maka diperlukan analisis terkait proses transmisi pada masing-masing komponen multipath . Hasil analisis diperoleh bahwa unjuk kerja dari Kode PN ( Pseudo Noise ) pada kanal frequency selective fading yang lebih baik adalah variasi komponen multipath = 3 dibandingkan dengan variasi komponen multipath = 6 dan yang paling buruk adalah variasi komponen multipath = 7. Hal ini dibuktikan dengan melihat nilai Bit Error Rate (BER) saat Energy Per Bit To Noise Power Spectral Density Ratio (Eb/No) = 10 dengan komponen multipath = 3 memiliki nilai BER Abstract: Barriers to the Line of Sight ( LOS ) can cause diffraction, reflection and scattering of information signals which will reduce the quality of information received on the receiving side. This results in a constructive and destructive nature of the signal at the receiving end. Examples of destructive properties that often occur are fading and delay. The receiver correlation system is implemented to overcome the problems that arise due to the effects of multipath fading. To obtain a signal with a minimum error value, an analysis is needed related to the transmission process for each multipath component. The analysis results show that the performance of the PN code (Pseudo Noise) on the frequency selective fading channel is best when the multipath component variation = 3 compared to multipath component variation = 6, and the worst is multipath component variation = 7. This is proved by the value of BER when Eb/No = 10 with multipath component = 3 has BER value of 0.00368, while multipath component = 6 and multipath component = 7 have BER values of 0.00386 and 0.00507 respectively. Based on these results it can be concluded that the number of multipath components have an effect on the quality of the received signal.