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Performance Analysis of Improved Self Cancellation Technique for Wavelet Based OFDM Through Simulink Model

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Abstract

As per the most recent literature, Orthogonal Frequency Division Multiplexing (OFDM), a multi access technique, is considered most suitable for the 3G, 4G and 5G techniques in high speed wireless communication. What made OFDM most popular is its ability to deliver high bandwidth efficiency and superior data rate. Besides it, high value of peak to average power ratio (PAPR) and Inter Carrier Interference (ICI) are the challenges to tackle down via appropriate mitigation scheme. As a research contribution in the present work, an improved self-cancellation (SC) technique is designed and simulated through Simulink to mitigate the effect of ICI. This novel proposed technique (Improved SC) is designed over discrete wavelet transform (DWT) based OFDM and compared with conventional SC scheme over different channel conditions i.e. AWGN and Rayleigh fading environments. It is found that proposed DWT-OFDM with Improved SC scheme outperforms conventional SC technique significantly, under both AWGN and Rayleigh channel conditions. Further, in order to justify the novelty in the research contribution, a Split-DWT based Simulink model for Improved SC scheme is investigated to analyse the BER performance. This Split-DWT based Simulink model presented here foretells the future research potential in wavelet hybridization of OFDM to side-line ICI effects more efficiently.

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Authors and Affiliations

  1. CERT-In, Ministry of Electronics and Information Technology, New Delhi, India

    Sandeep Sarowa

  2. ADGITM, Guru Gobind Singh Indraprastha University, New Delhi, India

    Surender Kumar

  3. ECE Department, Adama Science and Tech University, Adama, Ethiopia

    Davinder S. Rathee

  4. UIET, Panjab University, Chandigarh, India

    Naresh Kumar

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  1. Sandeep Sarowa
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  4. Naresh Kumar
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Sarowa, S., Kumar, S., Rathee, D.S. et al. Performance Analysis of Improved Self Cancellation Technique for Wavelet Based OFDM Through Simulink Model. Wireless Pers Commun 118, 1055–1073 (2021). https://doi.org/10.1007/s11277-020-08058-8

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