Conjugate-Root Offset-QAM for Orthogonal Multicarrier Transmission
Information Theory
2016-05-04 v2 math.IT
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.
Cite
@article{arxiv.1504.00126,
title = {Conjugate-Root Offset-QAM for Orthogonal Multicarrier Transmission},
author = {Maximilian Matthé and Gerhard Fettweis},
journal= {arXiv preprint arXiv:1504.00126},
year = {2016}
}
Comments
4pages, revised version submitted to IEEE WCL