WSEAS Transactions on Communications
Print ISSN: 1109-2742, E-ISSN: 2224-2864
Volume 14, 2015
Development of a Wavelet Encoder in FPGA
Authors: , ,
Abstract: The performance of wireless communications systems is mainly limited by fading produced by multipath propagation. In order to minimize the destructive effects of fading, several techniques have been proposed recently, among them, diversity techniques and channel coding. The classical techniques of channel coding use controlled addition of redundancy to the information. Among the known coding techniques in the literature, the wavelet coding presents an alternative in which the robustness achieved against the effects of multipath fading occurs because of a temporal diversity on the transmitted information. This paper presents architectures for wavelet encoder and decoder on Field Programmable Gate Array (FPGA). The proposed architectures are analysed in terms of computational complexity. The obtained results demonstrate the low cost for hardware implementation, as well as attest the efficiency of the technique in combating the destructive effects of wireless communication systems. The implementation was validated by means of platforms MATLAB-SIMLINK e Xilinx-system generator.
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Pages: 89-95
WSEAS Transactions on Communications, ISSN / E-ISSN: 1109-2742 / 2224-2864, Volume 14, 2015, Art. #12