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Implementation of convolution coded OFDM through different channel models on SDR platform

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Abstract

With the tremendous growth in the demand for high-speed reliable wireless communication systems worldwide, orthogonal frequency division multiplexing (OFDM) technique holds the promise for achieving the spectral efficiency and high data capacity requirements and with further coding of OFDM using forward error correction (FEC) codes minimizes the error probability minimizes over the crowded noisy channel by systematic addition of redundant bits. Further incorporating coded OFDM with Software Defined Radio (SDR) platform provide solutions to implement multiple standards on same platform without any alterations in hardware because it provides the entire signal processing functions at the software. In this paper, the impact of FEC on OFDM performance over both AWGN and fading (Rayleigh and Rician) channels in term of Error Rate has been studied. The simulation of coded OFDM on SDR and analyses of its performance under different channel models has been performed in this work. In this paper via GNU Radio Companion simulations, it has been analyzed that the coded OFDM has outperformed uncoded OFDM under all the considered channel models. It has provided with flexible, low cost and reliable solutions and has ability to incorporate different wireless standards without hardware changes as compared to existing ones.

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Acknowledgements

The experimental work presented here is research of master’s thesis and is carried out in order to fulfill the requirement for the completion of the master’s degree. I am highly grateful to Dr. M.S. Saini, Director, Guru Nanak Dev Engineering College (GNDEC), Ludhiana for providing this opportunity to carry out this work. I am indebted to all whosoever has contributed in this work and friendly stay at Guru Nanak Dev Engineering College, Ludhiana.

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  1. Department of Electronics and Communication Engineering, Guru Nanak Dev Engineering College, Ludhiana, India

    Ashish Thakur & Munish Rattan

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  1. Ashish Thakur
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  2. Munish Rattan
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Correspondence to Ashish Thakur.

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Thakur, A., Rattan, M. Implementation of convolution coded OFDM through different channel models on SDR platform. Int. j. inf. tecnol. 13, 2561–2568 (2021). https://doi.org/10.1007/s41870-018-0265-2

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  • DOI: https://doi.org/10.1007/s41870-018-0265-2

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