An Evaluation of Coded Wavelet for Multicarrier Modulation with OFDM

K. O. O. Anoh(1*), T. Ghazaany(2), A. S. Hussaini(3), R. A. Abd-Alhameed(4), S. M. R. Jones(5), J. Rodriguez(6)

(1) Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom
(2) Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom
(3) Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom
(4) Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom
(5) Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom
(6) Mobile and Satellite Communications Research Centre, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom
(*) Corresponding author


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Abstract


Orthogonal frequency division multiplexing (OFDM) is pronounced in wireless communication systems. Methods for improving the performance of the OFDM-based systems are mostly sought. A method of doing this involves error correction coding and another, a better multicarrier modulation kernel. In this work, convolutional error correction coding with interleaving is introduced in wavelet multicarrier modulation OFDM system (wavelet-OFDM) to improve the performance of multicarrier systems as the signal traverses the multipath and noisy transmission channels. This is compared with FFT-based multicarrier modulation (FFT-OFDM). Results show that coded wavelet-OFDM saves more than a half of the transmit power than the uncoded wavelet. Also it will be shown that, the interleaved and non-interleaved coded wavelet-OFDM well outperform interleaved coded and non-interleaved coded FFT-OFDM systems respectively.
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Keywords


Multicarrier Modulation; Wavelet; OFDM; Convolution Coding; Error Correction; Viterbi Decoding; Interleaving

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