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Proceedings Paper

A novel FFT/IFFT based peak-to-average power reduction method for OFDM communication systems using tone reservation
Author(s): Samuel Oru Besong; Xiaoyou Yu; Bin Li; Weibing Hou; Xiaochun Wang
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Paper Abstract

One of the main drawbacks of OFDM systems is the high Peak-to-Average Power ratio, which could limit transmission efficiency and efficient use of HPA. In this paper we present a modified tone reservation scheme for PAPR reduction using FFT iterations to generate the tones. In this Scheme, the reserve tones are designed to both cancel peaks and slightly increase the average power to induce a better PAPR reduction..The tones are generated by means of 2 FFT operations and the process is sometimes iterated to achieve better PAPR reductions. This scheme achieves a significant PAPR reduction of at least 4.6dB when about 4% of the carriers are used as reserve tones and with even lesser iterations when simulated in an OFDM system.

Paper Details

Date Published: 1 October 2011
PDF: 6 pages
Proc. SPIE 8285, International Conference on Graphic and Image Processing (ICGIP 2011), 82853Y (1 October 2011); doi: 10.1117/12.913037
Show Author Affiliations
Samuel Oru Besong, Hunan Univ. (China)
Xiaoyou Yu, Hunan Univ. (China)
Bin Li, Hunan Univ. (China)
Weibing Hou, Univ. of Shenzhen (China)
Xiaochun Wang, The 3rd Research Institute Academy of Air Force Equipments (China)


Published in SPIE Proceedings Vol. 8285:
International Conference on Graphic and Image Processing (ICGIP 2011)

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