TY - GEN
T1 - Low-Complexity Iterative Receiver for Orthogonal Chirp Division Multiplexing
AU - Bomfin, Roberto
AU - Chafii, Marwa
AU - Fettweis, Gerhard
N1 - Funding Information:
This work was supported by the European Union’s Horizon 2020 under grant agreements no. 732174 (ORCA project) and no. 777137 (5GRANGE project).
Funding Information:
The computations were performed at the Center for Information Services and High Performance Computing (ZIH) at Technische Universität Dresden. This work was supported by the European Union's Horizon 2020 under grant agreements no. 732174 (ORCA project) and no. 777137 (5GRANGE project).
Publisher Copyright:
© 2019 IEEE.
PY - 2019/4
Y1 - 2019/4
N2 - This paper proposes a low-complexity iterative receiver for the recently proposed Orthogonal Chirp Division Multiplexing (OCDM) modulation scheme, where we consider a system under frequency-selective channels and constrained to channel state information availability only at the receiver. It has been shown that under these assumptions, OCDM becomes an optimal waveform in terms of performance, i.e., frame error rate (FER), when employing a receiver capable of achieving perfect feedback equalizer (PFE) performance. Thus, this work targets proposing such a receiver for OCDM with low-complexity. Our approach is based on the well accepted minimum mean squared error with parallel interference cancellation (MMSE-PIC), where we derive an approximated equalizer whose complexity is reduced to two fast Fourier transforms (FFTs) per iteration. The FER results reveal that i) the proposed low-complexity receiver performs as good as the original MMSE-PIC, ii) OCDM performs very closely to PFE, and iii) OCDM has approximately 2 dB improvement over OFDM.
AB - This paper proposes a low-complexity iterative receiver for the recently proposed Orthogonal Chirp Division Multiplexing (OCDM) modulation scheme, where we consider a system under frequency-selective channels and constrained to channel state information availability only at the receiver. It has been shown that under these assumptions, OCDM becomes an optimal waveform in terms of performance, i.e., frame error rate (FER), when employing a receiver capable of achieving perfect feedback equalizer (PFE) performance. Thus, this work targets proposing such a receiver for OCDM with low-complexity. Our approach is based on the well accepted minimum mean squared error with parallel interference cancellation (MMSE-PIC), where we derive an approximated equalizer whose complexity is reduced to two fast Fourier transforms (FFTs) per iteration. The FER results reveal that i) the proposed low-complexity receiver performs as good as the original MMSE-PIC, ii) OCDM performs very closely to PFE, and iii) OCDM has approximately 2 dB improvement over OFDM.
KW - MMSE-PIC
KW - OCDM
KW - frequency-selective channel
KW - iterative receiver
UR - http://www.scopus.com/inward/record.url?scp=85072308064&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072308064&partnerID=8YFLogxK
U2 - 10.1109/WCNCW.2019.8902857
DO - 10.1109/WCNCW.2019.8902857
M3 - Conference contribution
AN - SCOPUS:85072308064
T3 - 2019 IEEE Wireless Communications and Networking Conference Workshop, WCNCW 2019
BT - 2019 IEEE Wireless Communications and Networking Conference Workshop, WCNCW 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 IEEE Wireless Communications and Networking Conference Workshop, WCNCW 2019
Y2 - 15 April 2019 through 18 April 2019
ER -