Joint Semi-Blind Self-Interference Cancellation and Equalisation Processes in 5G QC-LDPC-Encoded Short-Packet Full-Duplex Transmissions

The paper proposes a joint semi-blind algorithm for simultaneously cancelling the self-interference component and estimating the propagation channel in 5G Quasi-Cyclic Low-Density Parity-Check (QC-LDPC)-encoded short-packet Full-Duplex (FD) transmissions. To avoid the effect of channel estimation pr...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2022-03, Vol.22 (6), p.2204
Main Authors: Vuong, Bao Quoc, Gautier, Roland, Ta, Hien Quang, Nguyen, Lap Luat, Fiche, Anthony, Marazin, Mélanie
Format: Article
Language:English
Subjects:
5G LDPC codes
Algorithms
Bit error rate
digital self-interference cancellation
Efficiency
Engineering Sciences
Error correcting codes
Feedback
Feedback loops
Female
full-duplex
Humans
Internet of Things
Packet transmission
Parity
Pregnancy
Random variables
recursive least-squares algorithm
semi-blind channel estimation
short-packet transmission
Signal and Image processing
Signal Processing, Computer-Assisted
Wireless communications
Wireless networks
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Summary:The paper proposes a joint semi-blind algorithm for simultaneously cancelling the self-interference component and estimating the propagation channel in 5G Quasi-Cyclic Low-Density Parity-Check (QC-LDPC)-encoded short-packet Full-Duplex (FD) transmissions. To avoid the effect of channel estimation processes when using short-packet transmissions, this semi-blind algorithm was developed by taking into account only a small number (four at least) pilot symbols, which was integrated with the intended information sequence and used for the feedback loop of the estimation of the channels. The results showed that this semi-blind algorithm not only achieved nearly optimal performance, but also significantly reduced the processing time and computational complexity. This semi-blind algorithm can also improve the performances of the Mean-Squared Error (MSE) and Bit Error Rate (BER). The results of this study highlight the potential efficiency of this joint semi-blind iterative algorithm for 5G and Beyond and/or practical IoT transmission scenarios.
ISSN:1424-8220
1424-8220
DOI:10.3390/s22062204