Multiuser Detection In Dualrate DS-CDMA Systems Using ICA

Multiuser Detection In Dualrate DS-CDMA Systems Using ICA

Jyoti Saxena (GZS College of Engineering and Technology, India), C.S. Rai (University of School of Information Technology and Guru Gobind Singh Indraprastha University, India) and P.K. Bansal (Malout Institute of Management and Information Technology, India)
DOI: 10.4018/jbdcn.2008010102
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This article proposes an ICA-based blind multiuser detection technique to detect the signal of the desired user in a dual rate DS-CDMA system. In the present competitive scenario, communication is the most important tool in business and it has become a necessity to remain connected. Depending on the nature of data and quality of service requirements, users transmit signals at different rates. DS-CDMA systems provide straightforward implementation of multi rate signals and have been proposed as a promising system to support multi rate signals. It is desired to have spectrum efficient detection techniques for multi rate DS-CDMA systems. Keeping this requirement in mind, an ICA-based detection technique has been proposed for dual rate DS-CDMA systems. The BER performance of the proposed detection technique has been compared with the conventional matched filter and rake detector. The simulation results illustrate the effectiveness of the proposed approach.

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