Fast DGT Based Receivers for GFDM in Broadband Channels
Abstract
Generalized frequency division multiplexing (GFDM) is a recent multicarrier 5G waveform candidate with flexibility of pulse shaping filters. However, the flexibility of choosing a pulse shaping filter may result in inter carrier interference (ICI) and inter symbol interference (ISI), which becomes more severe in a broadband channel. In order to eliminate the ISI and ICI, based on discrete Gabor transform (DGT), in this paper, a transmit GFDM signal is first treated as an inverse DGT (IDGT), and then a frequency-domain DGT is formulated to recover (as a receiver) the GFDM signal. Furthermore, to reduce the complexity, a suboptimal frequency-domain DGT called local DGT (LDGT) is developed. Some analyses are also given for the proposed DGT based receivers.
Keywords
Cite
@article{arxiv.1602.04877,
title = {Fast DGT Based Receivers for GFDM in Broadband Channels},
author = {Peng Wei and Xiang-Gen Xia and Yue Xiao and Shaoqian Li},
journal= {arXiv preprint arXiv:1602.04877},
year = {2023}
}
Comments
28 pages, 8 figures