TY - JOUR
T1 - Efficiency analysis of a truncated flip-FBMC in burst optical transmission
AU - Bahaaelden, Mohammed S.
AU - Ortega, Beatriz
AU - Perez-Jimenez, Rafael
AU - Renfors, Markku
N1 - Funding Information:
This work was supported in part by the Research Agency under Project RTI2018-101658-B-I00 and Project TEC2017-84065-C3-1-R, in part by the European Cooperation in Science and Technology COST Action ‘‘European Network on Future Generation Optical Wireless Communication Technologies (NEWFOCUS)’’ under Grant CA19111, and in part by Generalitat Valenciana under Grant PROMETEO 2017/103.
Publisher Copyright:
© 2013 IEEE.
PY - 2021
Y1 - 2021
N2 - A novel Flip-filter bank multicarrier (Flip-FBMC)-based transmultiplexer (TMUX) with offset quadrature amplitude modulation is proposed to enhance the transmission performance compared to a conventional Flip-OFDM system. Moreover, the possibility to reduce the TMUX response (latency) and increase spectral efficiency is investigated for the first time through a tail shortening method. The proposed design is based on a biorthogonal form for visible light communication (VLC) to increase the flexibility of design requirements. However, spectral efficiency suffers from the ramp-up and the ramp-down at the beginning and end, respectively, of a data burst. Hence, as a penalty, Flip-FBMC imposes 9 more symbols than a Flip-OFDM packet and two factors compared to a DCO-FBMC burst. Hard truncation of the lowest energy tail minimizes latency and limits the system penalty to 2.5 symbols, which is lower than that of DCO-FBCM by 2 symbols. The results show that the prototype filter of the Heisenberg factor ( $\approx 1$ ) is highly effective in reducing the energy loss of truncated tails and reduces the symbol error rate (SER). The Flip-FBMC gain over a direct line-of-sight VLC channel is analyzed, and the channel estimation of a truncated burst, which is based on the interference approximation method (IAM) of IAM-C type, exhibits a superior performance of 1.5 dB at 10-3 SER over the IAM-R method and 1 dB at 10-5 SNR over a cyclic prefix of 1 point Flip-OFDM. On the other hand, the analysis reveals that IAM-C is slightly impacted by the truncated burst compared to the nontruncated version.
AB - A novel Flip-filter bank multicarrier (Flip-FBMC)-based transmultiplexer (TMUX) with offset quadrature amplitude modulation is proposed to enhance the transmission performance compared to a conventional Flip-OFDM system. Moreover, the possibility to reduce the TMUX response (latency) and increase spectral efficiency is investigated for the first time through a tail shortening method. The proposed design is based on a biorthogonal form for visible light communication (VLC) to increase the flexibility of design requirements. However, spectral efficiency suffers from the ramp-up and the ramp-down at the beginning and end, respectively, of a data burst. Hence, as a penalty, Flip-FBMC imposes 9 more symbols than a Flip-OFDM packet and two factors compared to a DCO-FBMC burst. Hard truncation of the lowest energy tail minimizes latency and limits the system penalty to 2.5 symbols, which is lower than that of DCO-FBCM by 2 symbols. The results show that the prototype filter of the Heisenberg factor ( $\approx 1$ ) is highly effective in reducing the energy loss of truncated tails and reduces the symbol error rate (SER). The Flip-FBMC gain over a direct line-of-sight VLC channel is analyzed, and the channel estimation of a truncated burst, which is based on the interference approximation method (IAM) of IAM-C type, exhibits a superior performance of 1.5 dB at 10-3 SER over the IAM-R method and 1 dB at 10-5 SNR over a cyclic prefix of 1 point Flip-OFDM. On the other hand, the analysis reveals that IAM-C is slightly impacted by the truncated burst compared to the nontruncated version.
KW - Filter bank multicarrier (FBMC)
KW - Flip-OFDM
KW - Hard truncation methods
KW - Heisenberg factor
KW - Interference approximation method
KW - Visible light communication (VLC)
U2 - 10.1109/ACCESS.2021.3096660
DO - 10.1109/ACCESS.2021.3096660
M3 - Article
AN - SCOPUS:85110828517
SN - 2169-3536
VL - 9
SP - 100558
EP - 100569
JO - IEEE Access
JF - IEEE Access
ER -