Efficient Mapping of CORDIC Algorithm for OFDM-Based WLAN |
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Authors: | F. Angarita M. J. Canet T. Sansaloni A. Perez-Pascual J. Valls |
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Affiliation: | (1) Department of Electronic Engineering, Polytechnic University of Valencia, 46730 Grao de Gandía, Valencia, Spain |
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Abstract: | In an orthogonal frequency division multiplexing-based wireless local area network receiver there are three operations that can be performed by a unique coordinate rotation digital computer (CORDIC) processor since they are needed in different time instants. These are the rotation of a vector, the computation of the angle of a vector and the computation of the reciprocal. This paper proposes a common architecture of CORDIC algorithm suitable to implement the three operations with a reduced increase of the hardware cost with respect to a single operation CORDIC. The proposed architecture has been validated on field programmable gate-arrays devices and the results of the implementation show that area saving around 28% and throughput increment of 64% are obtained. |
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Keywords: | OFDM cordic wireless LAN |
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