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Generalized frequency division multiplexing with flexible index modulation numerology

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Ozturk, Ersin
Cirpan, Hakan Ali

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In this letter, generalized frequency division multiplexing (GFDM) is combined with index modulation (IM) exploiting the block-based structure of GFDM in an innovative way. The proposed GFDM-IM scheme uses flexible IM numerology to reduce out-of-band (OOB) emission and provides a novel multilayer system model to further benefit from the enhanced distance spectrum of IM. The proposed scheme adapts maximum likelihood successive interference cancellation based near-optimum detector to improve the error performance and reduce the computational complexity. It has been shown that the proposed GFDM-IM scheme achieves better error performance than classical and IM-based orthogonal frequency division multiplexing and GFDM schemes at the same spectral efficiency, and provides an interesting tradeoff among OOB emission, spectral efficiency, and latency.

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Ieee-Inst Electrical Electronics Engineers Inc

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Engineering, Electrical electronic engineering

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Ieee Signal Processing Letters

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10.1109/LSP.2018.2864601

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