Joint Optimization of Peak-to-Average Power Ratio and Spectral Leakage in NC-OFDM

Peng WEI  Lilin DAN  Yue XIAO  Shaoqian LI  

IEICE TRANSACTIONS on Communications   Vol.E99-B   No.12   pp.2592-2599
Publication Date: 2016/12/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.2016EBP3151
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
OFDM,  PAPR,  spectral leakage,  

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High peak-to-average power ratio (PAPR) and spectral leakage are two main problems of orthogonal frequency division multiplexing (OFDM) systems. For alleviating the above problems, this paper proposes a joint model which efficiently suppresses both PAPR and spectral leakage, by combining serial peak cancellation (SPC) and time-domain N-continuous OFDM (TD-NC-OFDM) in an iterative way. Furthermore, we give an analytical expression of the proposed joint model to analyze the mutual effects between SPC and TD-NC-OFDM. Lastly, simulation results also support that the joint optimization model can obtain notable PAPR reduction and sidelobe suppression performance with low implementation cost.