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Joint ICI Cancellation and PAPR Reduction in OFDM Systems Without Side Information

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Abstract

Intercarrier interference (ICI) self-cancellation, new ICI self-cancellation and conjugate cancellation schemes have been proposed in the literature to mitigate the effect of ICI. In this paper we have performed the mathematical analysis of PAPR performances for ICI self-cancellation, new ICI self-cancellation and ICI conjugate cancellation schemes and it is found that PAPR performance of these schemes are either very close to or poorer than the standard OFDM signal, which necessitates the requirement of PAPR reduction. After realizing the need of PAPR reduction in ICI cancellation schemes, we have proposed a joint scheme to reduce ICI and PAPR simultaneously. In this paper, we have proposed a multipoint partial transmit sequence (PTS) scheme, to improve the PAPR performance of ICI cancellation schemes. The proposed multipoint PTS based PAPR reduction scheme is coupled with ICI cancellation schemes in such a way that CIR performance of these schemes after coupling remains unchanged and no SI is required at the receiver to recover the original data signal. A comparison of CIR and PAPR performances for ICI cancellation schemes with and without PAPR reduction is also presented in this paper. The analytical results of CIR and PAPR performances for conventional ICI cancellation and joint ICI cancellation and PAPR reduction confirm the outperformance of the proposed scheme. We have also evaluated the SER performance of the joint schemes over additive white Gaussian noise and fading channels and presented a comparison with other existing schemes.

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Acknowledgments

The authors would like to thank the anonymous reviewers for their constructive comments, which were of great help to improve the quality of this paper.

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Authors and Affiliations

  1. ECE Department, Jaypee Institute of Information Technology, Noida, UP, India

    A. Goel & Prerana Gupta

  2. CARE, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, India

    M. Agrawal

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  1. A. Goel
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  2. Prerana Gupta
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  3. M. Agrawal
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Correspondence to A. Goel.

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Goel, A., Gupta, P. & Agrawal, M. Joint ICI Cancellation and PAPR Reduction in OFDM Systems Without Side Information. Wireless Pers Commun 71, 2605–2623 (2013). https://doi.org/10.1007/s11277-012-0957-z

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