Peak to Average Power Ratio Reduction for Multi-band OFDM System using Tone Reservation

Hussain, S. and Louet, Y. (2008) Peak to Average Power Ratio Reduction for Multi-band OFDM System using Tone Reservation. In: 29th URSI General Assembly 08, Chicago, IL, USA, 7-16 Aug 2008,

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OFDM and its extension Multi-band OFDM (MB-OFDM) are considered as the modulation schemes for many future communications systems. But these schemes cause high PAPR which should be reduced before power amplifi- cation otherwise non-linearities can occur. In this paper Tone Reservation method is used for OFDM PAPR reduction where a corrective signal is added to the original signal to reduce its PAPR. The effect of some corrective signal properties which influence the PAPR reduction performance are discussed. It is revealed that corrective signal’s bandwidth and power are proportional to PAPR reduction gain while the bandwidth gap between useful and corrective carriers is inversely proportional to the PAPR reduction gain. Finally MB-OFDM PAPR reduction is performed and it is demonstrated that PAPR reduction performed with corrective tones optimization over all OFDM symbols is more efficient but computationally more complex at the same time. This MB-OFDM PAPR reduction method can also be generalized for PAPR reduction of a Software Radio signal.

Item Type:Conference Proceedings
Glasgow Author(s) Enlighten ID:Hussain, Dr Sajjad
Authors: Hussain, S., and Louet, Y.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
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