Cross-Antenna Polyphase Interleaving and Inversion scheme to reduce the PAPR of MIMO-FBMC/OQAM system
Abstract
Filter Bank Multi-Carrier with Offset Quadrature
Amplitude symbol mapping called as FBMC/OQAM is presented
as a potential successor of Orthogonal Frequency Division
Multiplexing OFDM. Combined with Multiple-Input MultipleOutput (MIMO), MIMO-FBMC/OQAM is a promising modulation scheme for high performance broadband wireless communications. However, one major drawback of MIMO-FBMC/OQAM
is the high peak-to-average power ratio (PAPR) of the output
signals. Latinovic et al. Proposed a PAPR reduction method
called Polyphase Interleaving and Inversion (PII) for MIMOOFDM systems under the use of the space-frequency block coding
(SFBC) [1]. In this investigation, we suggest two schemes called
Cross Antenna Polyphase Interleaving and Inversion 1 and 2
(CAPII1/(CAPII2) PAPR reduction schemes for Space Frequency
Block Coding MIMO-FBMC systems which consequently utilizes
additional degrees of freedom by employing multiple antennas
and generating more patterns leading to more signal candidates
to transmit, while requiring a limited amount of side information.
The simulation results show that both the proposed CAPII
schemes experience remarkable gain in PAPR.
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