TY - GEN
T1 - Low-complexity DGT-based GFDM receivers in broadband channels
AU - Wei, Peng
AU - Xia, Xiang Gen
AU - Xiao, Yue
AU - Li, Shaoqian
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2017/1/25
Y1 - 2017/1/25
N2 - Recently, generalized frequency division multiplexing (GFDM) is a multicarrier 5G waveform candidate for flexibility of its pulse shaping filters. However, the flexible pulse shaping filters may result in inter carrier interference (ICI) and inter symbol interference (ISI), which become more severe in a broadband channel. In this paper, for the elimination of the ISI and ICI, based on discrete Gabor transform (DGT), a transmit GFDM signal is first treated as an inverse DGT (IDGT), and then a frequency-domain DGT is proposed to recover the GFDM signal at the receiver. Furthermore, for the complexity reduction, a suboptimal frequency-domain DGT called local DGT (LDGT) is developed. Theoretical analyses and simulation results show that the proposed DGT can obtain promising bit-to-error rate (BER) performance with low complexity.
AB - Recently, generalized frequency division multiplexing (GFDM) is a multicarrier 5G waveform candidate for flexibility of its pulse shaping filters. However, the flexible pulse shaping filters may result in inter carrier interference (ICI) and inter symbol interference (ISI), which become more severe in a broadband channel. In this paper, for the elimination of the ISI and ICI, based on discrete Gabor transform (DGT), a transmit GFDM signal is first treated as an inverse DGT (IDGT), and then a frequency-domain DGT is proposed to recover the GFDM signal at the receiver. Furthermore, for the complexity reduction, a suboptimal frequency-domain DGT called local DGT (LDGT) is developed. Theoretical analyses and simulation results show that the proposed DGT can obtain promising bit-to-error rate (BER) performance with low complexity.
UR - http://www.scopus.com/inward/record.url?scp=85013960912&partnerID=8YFLogxK
U2 - 10.1109/ICCS.2016.7833550
DO - 10.1109/ICCS.2016.7833550
M3 - Conference contribution
AN - SCOPUS:85013960912
T3 - 2016 IEEE International Conference on Communication Systems, ICCS 2016
BT - 2016 IEEE International Conference on Communication Systems, ICCS 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 IEEE International Conference on Communication Systems, ICCS 2016
Y2 - 14 December 2016 through 16 December 2016
ER -