文章基本信息

标题：Effect of AWGN on BER Performance of Multiuser Detection in DS-OCDMA System using Novel Multilevel Periodic Codes
本地全文：下载
作者：Besma Hammami ; Habib Fathallah ; Houria Rezig 等
期刊名称：International Journal of Computer and Information Technology
印刷版ISSN：2279-0764
出版年度：2015
卷号：4
期号：2
出版社：International Journal of Computer and Information Technology
摘要：In this paper, we study the performance of the multiuser detection in a direct sequence optical code division multiple access (DS-OCDMA) system using novel periodic optical encoder applied to fiber-to-the-X (FTTX) passive optical network (PONs). The performance of our system is analyzed in a synchronous network using multilevel periodic codes (ML-PC) with a conventional receiver model and the results are compared with those for different receivers. Two solutions to improve the performance are proposed: the parallel interference cancellation receiver (PIC) and the successive interference cancellation receiver (SIC). We investigate the performances in terms of signal to noise ratio (SNR) and bit error rate (BER) in the presence of multiple access interference (MAI) and an additive white Gaussian noise (AWGN).
关键词：direct-sequence optical code-division multiple-access ; (DS-OCDMA); fiber-to-the-X (FTTX); passive optical network ; (PONs); multilevel periodic codes (ML-PC); parallel interference ; cancellation (PIC); successive interference cancellation (SIC); ; signal to noise ratio (SNR); additive white Gaussian noise ; (AWGN); multiple access interference (MAI).