PROOF
Print ISSN: 2944-9162, E-ISSN: 2732-9941 An Open Access International Journal of Applied Science and Engineering
Volume 5, 2025
Performance analysis of Auto & Cross Correlation values of Spreading Sequences and comparison between PIC and PPIC & Computational complexity of DPIC for DS-CDMA system
Authors: , , , , , , , , , ,
Abstract: Spreading sequences is essential to wireless communication system. It is employed in
direct sequence code division multiple access system (DS-CDMA) to serve increased user count with
different spreading sequences like orthogonal and non-orthogonal spreading sequences. Reduction of
MAI to improve system capacity without increasing computational Complexity is the motivation to do
this work. The objective of this paper is to develop an efficient multiuser detection algorithms that
reduce the computational complexity and increases the system performance in DS-CDMA system.
The BER performance of the multistage multiuser PIC detection scheme is found to be better than that
of a single stage multiuser PIC detection scheme but at the cost of computational complexity
increasing with number of stages and users. It is found that the BER performance of the multistage
multiuser PPIC detection scheme is better than that of the multistage multiuser PIC detection scheme
but the computational complexity increases. Though the computational complexity is found reduced
in the multistage multiuser DPIC when compared to the multistage multiuser PIC.
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Pages: 6-13
DOI: 10.37394/232020.2025.5.2