Sub-block Permutation for Peak-to-Average Power Ratio Reduction in MIMO-OFDM System

Author

Research Institute for Information and Communication Technology, Isfahan University of Technology, Isfahan, Iran

Abstract

High peak-to-average power ratio (PAPR) is known as a major drawback of the MIMO-OFDM system. The high PAPR at the transmitter may force its amplifier into saturation and cause non-linear distortion due to non-linear devices. Also, it can increase the complexity of digital-to-analog converters. This paper proposes a PAPR reduction method for MIMO-OFDM system. The main idea is based on generating multiple candidate signals that carry the same information and transmitting the one with minimum PAPR. In the proposed method, the OFDM data blocks are partitioned into a number of disjoint sub-blocks. Then, the sub-blocks are appropriately permuted to generate different candidates for transmission. The advantage of the proposed method is joint PAPR reduction at all transmit antennas. The simulation results of the proposed method shows a performance improvement of 1.91 dB over PTS-based approaches for . In this paper, a version of the proposed method which has lower computational complexity compared to that of the PTS-based approaches is also proposed. This version can reduce the computational complexity up to 99.7 %.

Keywords

References

[1] Hwang, T., Yang, C., Wu, G., Li, S., & Ye Li, G., “OFDM and its wireless applications: a survey”, IEEE Trans. Veh. Technol., vol. 58, no. 4, pp. 1673-1694, May 2009.
[2] Wunder, G., Fischer, R. F., Boche, H., Litsyn, S., & No, J. S., “The PAPR problem in OFDM transmission: New directions for a long-lasting problem”, IEEE Signal Process. Mag., vol. 30, no. 6, pp. 130-144, Oct. 2013.
[3] Akhtman, Y., Wang, L., & Jiang, M., MIMO-OFDM for LTE, WiFi and WiMAX: coherent versus non-coherent and cooperative turbo transceivers, Wiley-IEEE Press, 2010.
[4] Baek, M.-S., Kim, M.-J., You, Y.-H., & Song, H.-K., “Semiblind channel estimation and PAR reduction for MIMO OFDM system with multiple antennas”, IEEE Trans. Broadcast., vol. 50, no. 4, pp. 414–424, Dec. 2004.
[5] Siegl, C., & Fischer, R. F. H., “Partial transmit sequences for peak-to-average power ratio reduction in multi-antenna OFDM”, EURASIP J. Wireless Commun. and Network., Article ID 325829, Jan. 2008.
[6] Jayalath, A. D. S., Tellambura, C., & Wu, H., “Reduced complexity PTS and new phase sequences for SLM to reduce PAPR of an OFDM signal”, Veh. Technol. Conf., pp. 1914-1917, Tokyo, Japan, 2000.
[7] Fischer, R. F. H., & Hoch, M., “Directed selected mapping for peak-to-average power ratio reduction in MIMO OFDM”, IEEE Electronics Letters, vol. 46, no. 22, pp. 1289–1290, Oct. 2006.
[8] Schenk, T. C. W., Smulders, P. F. M., & Fledderus, E. R., “Peak-to- in average power reduction space division multiplexing based OFDM systems through spatial shifting”, IEEE Electronics Letters, vol. 41, no. 15, pp. 860-861, Jul. 2005.
[9] Wang, L., & Liu, J., “Cooperative PTS for PAPR reduction in MIMO-OFDM”, IEEE Electronics Letters, vol. 47, no. 5, pp. 472-474, Jul. 2011.
[10] Schenk, T. C., Smulders, P. F., & Fledderus, E. R. “The application of spatial shifting for peak-to-average power ratio reduction in MIMO OFDM systems”, IEEE Veh. Technol. Conf., vol. 4, pp. 1859-1863, May 2006.
[11] Siegl, C., Peak-to-average power ratio reduction in multi-antenna OFDM via multiple signal representation, Ph.D. dissertation, Erlangen-Nurnberg University, Germany, 2010.
[12] Cho, Y. S., Kim, J., Yang, W. Y., & Kang, C. G., MIMO-OFDM wireless communications with MATLAB, John Wiley & Sons. 2010.
[13] Jiang, T., & Wu, Y., “An overview: peak-to-average power ratio reduction techniques for OFDM signals”, IEEE Trans. Broadcast., vol. 54, no. 2, pp. 257-268, Jun. 2008.
[14] IEEE LAN/MAN Standards Committee, “IEEE standard for local and metropolitan area networks- part 16: air interface for fixed broadband wireless access systems (Revision of 802.16–2006)”, IEEE 802.16, 2006.
[15] Yang, L., Soo, K. K., Li, S. Q., & Siu, Y. M., “PAPR reduction using low complexity PTS to construct of OFDM signals without side information”, IEEE Trans. Broadcast., vol. 57, no. 2, pp. 284–290. Jun. 2011.
[16] Muller, S. H., & Huber, J. B., “A novel peak power reduction scheme for OFDM”, Proc. IEEE Int. Symp.  Personal, Indoor and Mobile Radio Commun. (PIMRC), Helsinki, Finland, Sep. 1997.
[17] Muller, S. H., & Huber, J. B., “OFDM with reduced peak-to-average power ratio by optimum combination of partial transmit sequences”, IEE Electronics Letters, vol. 33, no. 5, pp. 36–69, Feb. 1997.
TABRIZ JOURNAL OF ELECTRICAL ENGINEERING
Volume 48, Issue 3 - Serial Number 85
November 2018
Pages 999-1010

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