Coded Faster-than-Nyquist Signaling for Short Packet Communications


Cerci E., ÇİÇEK A. , ÇAVUŞ E. , Bedeer E., Yanikomeroglu H.

32nd IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2021, Virtual, Helsinki, Finland, 13 - 16 September 2021, vol.2021-September, pp.428-433 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 2021-September
  • Doi Number: 10.1109/pimrc50174.2021.9569719
  • City: Virtual, Helsinki
  • Country: Finland
  • Page Numbers: pp.428-433
  • Keywords: Faster-than-Nyquist (FTN) signaling, nonbinary LDPC, short packet communications, symbol-by-symbol detection

Abstract

© 2021 IEEE.Ultra-reliable low-latency communication (URLLC) requires short packets of data transmission. It is known that when the packet length becomes short, the achievable rate is subject to a penalty when compared to the channel capacity. In this paper, we propose to use faster-than-Nyquist (FTN) signaling to compensate for the achievable rate loss of short packet communications. We investigate the performance of a combination of a low complexity detector of FTN signaling used with nonbinary low-density parity-check (NB-LDPC) codes that is suitable for low-latency and short block length requirements of URLLC systems. Our investigation shows that such combination of low-complexity FTN signaling detection and NB-LDPC codes outperforms the use of close-to-optimal FTN signaling detectors with LDPC codes in terms of error rate performance and also has a considerably lower computational complexity.