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arXiv · 1504.00126

Conjugate-Root Offset-QAM for Orthogonal Multicarrier Transmission

Maximilian Matthé·Gerhard Fettweis
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Abstract

Current implementations of OFDM/OQAM are restricted to band-limited symmetric filters. To circumvent this, non-symmetric conjugate root (CR) filters are proposed for OQAM modulation. The system is applied to Generalized Frequency Division Multiplexing (GFDM) and a method for achieving transmit diversity with OQAM modulation is presented. The proposal reduces implementation complexity compared to existing works and provides a more regular phase space. GFDM/CR-OQAM outperforms conventional GFDM in terms of symbol error rate in fading multipath channels and provides a more localized spectrum compared to conventional OQAM.

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Maximilian Matthé, Gerhard Fettweis. 2015-06-23. Conjugate-Root Offset-QAM for Orthogonal Multicarrier Transmission. https://doi.org/10.1186/s13634-016-0342-2

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