Orthogonal frequency division multiplexing (OFDM), Multi-Carrier (MC) system, is a popular standard in wireless communication for its enabling high throughput data transfer. However, the MC signal usually has a high peak-to-average power ratio (PAPR), which involves a wide-dynamic-range, power consuming amplifier. Whenever the signal height is greater than the amplified linear region, the signal is distorted. In this paper, propose a novel scheme that rotating phase shift (RPS) technique based signal scrambling is proposed to reduce PAPR in OFDM systems. In addition, the pilot phase signal is picked out by RPS technique applied new algorithm the local research to alleviate scrambling information corruption and show discernible advancements. So, our technique improves over the existing ones in the same category. The transmitted signal of OFDM is tested with Mobile WiMAX IEEE 802.16e standard, that compared the various phase shift with a slight computational complexity is studied. The simulation result shows that original signal at pilot-assisted QAM is capable of bringing down the electrical PAPR by about 3.5 times as a modest complementary cumulative distribution function (CCDF) point of 10-3 for M=8 low complexity. In addition, the best phase-shift factor was selected to reduce the monetary value of computational complexity.
The paper contributes the first logical analysis eight factors rotating phase shift (RPS). The proposed method is applied local research algorithms to reduce peak-to-average power ratio based on OFDM.
J. Tao and Y. Wu, "An overview: Peak-to-average power ratio reduction techniques for OFDM signals," IEEE Transactions on Broadcasting, vol. 54, pp. 257-268, 2008. View at Google Scholar | View at Publisher
D. W. Lim, J. S. No, and S. J. Heo, "An overview of peak-to-average power ratio reduction schemes for OFDM signals," Journal of Communications and Networks, vol. 11, pp. 229- 239, 2009. View at Google Scholar
R. Bauml, R. Fischer, and J. Huber, "Reducing the peak-to-average power ratio of multicarrier modulation by selected mapping," Electronics Letters, vol. 32, pp. 2056–2057, 1996. View at Google Scholar | View at Publisher
L. Wang and C. Tellambura, "A simplified clipping and filtering technique for par reduction in OFDM systems," IEEE, Signal Processing Letters, vol. 12, pp. 453–456, 2005. View at Google Scholar | View at Publisher
S. Muller and J. Huber, "OFDM with reduced peak-to-average power ratio by an optimum combination of partial transmit sequences," Electronics Letters, vol. 33, pp. 368–369, 1997. View at Google Scholar | View at Publisher
G. Lu, P. Wu, and D. Aronsson, "Peak-to-average power ratio reduction in OFDM using cyclically shifted phase sequences," LET Communications, vol. 1, pp. 1146-1151, 2007. View at Google Scholar | View at Publisher
L. Yang, K. Soo, S. Li, and Y. Siu, "PAPR reduction using low complexity PTS to construct of OFDM signals without side information," IEEE Transactions on Broadcasting, vol. 57, pp. 284-290, 2011. View at Google Scholar | View at Publisher
S. Sahoo and S. K. Patra, "VHDL implementation of circularly shifted PTS technique for PAPR reduction in OFDM," presented at the IEEE International Conference on Advanced Communication Control and Computing Technologies (ICACCCT), 2014.
A. D. Hebb and J. Ilow, "Proactive clipping and filtering for trading in- and out-of-band distortion in OFDM transmitters," presented at the IEEE Conference on Networks & Digital Signal Processing (CSNDSP), Communication Systems, 2014.
G. J. Foschini and M. J. Gans, On the limits of wireless communication in a fading environment when using multiple antennas vol. 6: Kluwer Academic Publishers, Wireless Personal Communication, 1998.
A. K. Nahar and Y. Rahayu, "Design and implementation of MC-CDMA wireless communication system using partial reconfiguration in FPGA—a review," International Journal of Advancements in Communication Technologies– IJACT, vol. 2, pp. 42-46, 2015.
S. A. Sengar and P. P. Bhattacharya, "Performance improvement in OFDM system By PAPR reduction," Signal & Image Processing An International Journal (SIPIJ), vol. 3, pp. 157-169, 2012. View at Google Scholar | View at Publisher
A. K. Nahar and K. H. B. Gazali, "PAPR reduction based on proposed rotating phase shift technique in MC-CDMA using FPGA," International Journal of Communications, Network and System Sciences, vol. 8, pp. 249-259, 2015. View at Google Scholar | View at Publisher
This study received no specific financial support.
The authors declare that they have no competing interests.
All authors contributed equally to the conception and design of the study.