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A Novel PAPR Reduction Method in MIMO-OFDM Systems by Frequency Block Exploitations

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2 Author(s)
Haiyang Huang ; National Key Lab of Communication, University of Electronic Sci. & Tech. of China, Chengdu, China ; Shaoqian Li

This paper proposes a novel method to reduce the peak-to- average power ratio (PAPR) of multicarrier signals in multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems by frequency block exploitations, named cross-frequency permutation and inversion (CFPI). Our design improves the performance and framework flexibility (compatible with both space-time and space-frequency patterns) of PAPR reduction in MIMO-OFDM system, which utilizes additional degrees of frequency freedom. Especially, this proposed design can be freely combined with many good-featured space-time or space-frequency coding to achieve better whole system performance, which is unlike the previous typical methods strictly based on space-time block coding structure with relative low data rate. Simulation results show that the good performance is achieved by our novel design.

Published in:

2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications

Date of Conference:

3-7 Sept. 2007