Abstract
This paper presents a new technique for progressive image transmission over low-density parity-check coded orthogonal frequency division multiplexing (LDPC-OFDM) system. This technique adopts chaotic Baker map to improve the performance and reduce the peak-to-average power ratio (PAPR) of the OFDM signal. It helps improving the error resilient ability and also enhancing the efficiency of progressive image transmission over frequency selective fading channels. The proposed technique can effectively resist the fading impact of the frequency selective channels using simple frequency domain equalization. The proposed technique also utilizes the set partitioning in hierarchical trees as a source coding algorithm for the transmitted images. The distinctive feature of the proposed technique is that the transmitted data sequence has less data correlation, which leads to minimizing the PAPR. Simulation results show that the proposed technique improves the visual quality of the received images and reduces the PAPR of the OFDM signal as well.
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Soliman, N.F., Albagory, Y., Elbendary, M.A.M. et al. Chaotic Interleaving for Robust Image Transmission with LDPC Coded OFDM. Wireless Pers Commun 79, 2141–2154 (2014). https://doi.org/10.1007/s11277-014-1977-7
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DOI: https://doi.org/10.1007/s11277-014-1977-7