TY - GEN
T1 - Blind Carrier Frequency Offset Estimation in Generalized Frequency Division Multiplexing
AU - Martinez, Ana Belen
AU - Matthé, Maximilian
AU - Chafii, Marwa
AU - Fettweis, Gerhard
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/4/8
Y1 - 2019/4/8
N2 - In generalized frequency division multiplexing (GFDM), the self-generated inter-carrier interference can be exploited to estimate the carrier frequency offset (CFO). In this paper, the state-of-the-art algorithm for the blind estimation of the CFO in GFDM is evaluated in detail. For this purpose, the corresponding theoretical model under additive white Gaussian noise (AWGN) channel conditions is derived. Furthermore, an alternative approach to increase the accuracy of the estimation is proposed. Depending on the GFDM parameterization and channel conditions, the new method can significantly improve the mean square error (MSE) of the CFO without compromising the latency. Simulation results show that under AWGN channel conditions, a GFDM configuration with a low number of subsymbols can highly benefit from the proposed approach. In multipath fading channels, the MSE can be considerably reduced in systems with a moderate subcarrier spacing.
AB - In generalized frequency division multiplexing (GFDM), the self-generated inter-carrier interference can be exploited to estimate the carrier frequency offset (CFO). In this paper, the state-of-the-art algorithm for the blind estimation of the CFO in GFDM is evaluated in detail. For this purpose, the corresponding theoretical model under additive white Gaussian noise (AWGN) channel conditions is derived. Furthermore, an alternative approach to increase the accuracy of the estimation is proposed. Depending on the GFDM parameterization and channel conditions, the new method can significantly improve the mean square error (MSE) of the CFO without compromising the latency. Simulation results show that under AWGN channel conditions, a GFDM configuration with a low number of subsymbols can highly benefit from the proposed approach. In multipath fading channels, the MSE can be considerably reduced in systems with a moderate subcarrier spacing.
KW - GFDM
KW - blind
KW - carrier frequency offset (CFO)
KW - inter-carrier interference (ICI)
KW - synchronization
UR - http://www.scopus.com/inward/record.url?scp=85064975931&partnerID=8YFLogxK
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U2 - 10.1109/ICCNC.2019.8685592
DO - 10.1109/ICCNC.2019.8685592
M3 - Conference contribution
AN - SCOPUS:85064975931
T3 - 2019 International Conference on Computing, Networking and Communications, ICNC 2019
SP - 869
EP - 875
BT - 2019 International Conference on Computing, Networking and Communications, ICNC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 International Conference on Computing, Networking and Communications, ICNC 2019
Y2 - 18 February 2019 through 21 February 2019
ER -