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PAPR Reduction in OFDM Systems Using Orthogonal Eigenvector Matrix

Authors: Md. Mahmudul Hasan


OFDM systems are known to have a high PAPR (Peak-to-Average Power Ratio) compared with single-carrier systems. In fact, the high PAPR is one of the most detrimental aspects in the OFDM system, as it can cause power degradation (Inband distortion) and spectral spreading (Out-of-band radiation). In this paper, from the foundation of the PAPR analysis an effective method of PAPR reduction has been proposed based on Orthogonal Eigenvector Matrix (OEM) transform. Extensive computer simulations show that a PAPR reduction of up to 4.4 dB can be obtained without introducing in-band distortion or out-of-band radiation in the system.

Keywords: Orthogonal frequency division multiplexing (OFDM), peak-to-average power ratio (PAPR), Orthogonal Eigenvector Matrix (OEM).

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[1] Y.Wu and W. Y. Zou, "Orthogonal frequency division multiplexing: A multi-carrier modulation scheme,” IEEE Trans. Consumer Electronics, vol. 41, no. 3, pp. 392–399, Aug. 1995.
[2] W. Y. Zou and Y. Wu, "COFDM: An overview,” IEEE Trans. Broadcasting, vol. 41, no. 1, pp. 1–8, Mar. 1995.
[3] T. Jiang, W. Xiang, H. H. Chen, and Q. Ni, "Multicast broadcasting services support in OFDMA-based WiMAX systems,” IEEE Communications Magazine, vol. 45, no. 8, pp. 78–86, Aug. 2007.
[4] S. H. Han and J. H. Lee, "An overview of peak-to-average power ratio reduction techniques for multicarrier transmission,” IEEE Personal Communications, vol. 12, no. 2, pp. 56–65, Apr. 2005.
[5] Tao Jiang and Y. Wu, "An Overview: Peak-to-Average Power Ratio Reduction Techniques for OFDM Signals” IEEE Transactions on Broadcasting, vol. 54, no. 2, pp. 257-268, Jun. 2008.
[6] N. J. Higham and D. J. Higham, "Large growth factors in Gaussian elimination with pivoting”, SIAM Journal on Matrix Analysis and Applications, 10, 1989, 155-164.
[7] G. Strang, "Introduction to Applied Mathematics”, Wellesley-Cambridge Press, Wellesley, MA, 1986.
[8] C. Tellambura, "Upper Bound on Peak Factor of N- Multiple Carriers,” Electronics Letter, Vol. 36, No. 14, 2000, pp. 1226-1228.
[9] W. J. Yuan, P. W. Hao and C. Xu, "Matrix Factorization for Fast DCT algorithms,” IEEE International Conference on Acoustics, Speech and Signal Processing, 2006, pp. 948-951.