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FPGA Implementation of Beamforming Receivers Based on MRC and NC-LMS for DS-CDMA System

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3 Author(s)
Elie H. Sarraf ; Universite du Qu¿bec a Trois-Rivieres, Canada ; Messaoud Ahmed-Ouameur ; Daniel Massicotte

This paper investigates a beamforming receivers based on maximum ratio combining (MRC) and noise constraint least mean square (NC-LMS) using rapid prototyping method for FPGA implementation. Non-adaptive and adaptive beamforming techniques approaches are considered. A performance evaluation of these algorithms in a DS-CDMA system is presented and FPGA design is evaluated in term of hardware resources for Xilinx family devices using rapid prototyping methodology with Matlab-Simulink tools. Both approaches offer a good performance-complexity tradeoff favorable for FPGA implementation. However, due to the adaptive approach, the NC-LMS presents a better robustness to the fixed point arithmetic than the MRC

Published in:

IEEE 17th International Conference on Application-specific Systems, Architectures and Processors (ASAP'06)

Date of Conference:

11-13 Sept. 2006