期刊名称：International Journal of Computer Science Issues
印刷版ISSN：1694-0784
电子版ISSN：1694-0814
出版年度：2017
卷号：14
期号：4
出版社：IJCSI Press
摘要：The current wireless mobile communication systems are occupying higher transmission bandwidths to support multimedia applications with high data rates. The multi-carrier code division multiple access (MC-CDMA) is one of the most promising candidates for the future generations of wireless mobile communications. Inter-symbol interference (ISI) and multiple access interferences (MAI), are the major challenges in the mobile communication systems due to transmission over multipath fading channels. In this paper, a proposed receiver structure based on discrete wavelet transforms for the downlink multicarrier code division multiple access (DWT-MC-CDMA) is presented to mitigate these interferences. Based on simulation results, the DWT-MC-CDMA receiver provides a better bit error rate (BER) performance than the conventional downlink discrete fourier transform multi-carrier code division multiple access (DFT-MC-CDMA) receiver.
关键词：Multi;Carrier Code Division Multiple Access (MC;CDMA); Discrete Wavelet Transform (DWT); Inter Symbol Interference (ISI); Multiple Access Interference (MAI).
