Title
Fpga Implementation Of Block Parallel Df-Mpic Detectors For Ds-Cdma Systems In Frequency-Nonselective Channels
Abstract
Multistage parallel interference cancellation- (MPIC-) based detectors allow to mitigate multiple-access interference in direct-sequence code-division multiple-access (DS-CDMA) systems. They are considered serious candidates for practical implementation showing a good tradeoff between performance and complexity. Better performance is obtained when decision feedback (DF) is employed. Although MPIC and DF-MPIC have the same arithmetic complexity, DF-MPIC needs much more FPGA resources when compared to MPIC without decision feedback. In this letter, FPGA implementation of block parallel DF-MPIC (BP-DFMPIC) is proposed allowing better tradeoff between performance and FPGA area occupancy. To reach an uncoded bit-error rate of 10-3, BP-DF-MPIC shows a 1.5 dB improvement over the MPIC without decision feedback with only 8% increase in FPGA resources compared to 69% for DF-MPIC. Copyright (C) 2008 A. O. Dahmane and L. Mejri. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Year
DOI
Venue
2008
10.1155/2008/435756
JOURNAL OF ELECTRICAL AND COMPUTER ENGINEERING
Field
DocType
Volume
Cdma systems,Computer science,Single antenna interference cancellation,Field-programmable gate array,Communication channel,Electronic engineering,Interference (wave propagation),Detector
Journal
2008
ISSN
Citations 
PageRank 
2090-0147
0
0.34
References 
Authors
3
2
Name
Order
Citations
PageRank
Adel Omar Dahmane1248.77
Lotfi Mejri200.34