Nested Tail-Biting Convolutional Codes Construction for Short Packet Communications

Autor: G. Q. Dou, Y. P. Sun, M. L. Yan
Rok vydání: 2021
Předmět:
Zdroj: Radioengineering, Vol 30, Iss 3, Pp 540-546 (2021)
Radioengineering. 2021 vol. 30, č. 3, s. 540-546. ISSN 1210-2512
ISSN: 1210-2512
DOI: 10.13164/re.2021.0540
Popis: Tail-biting convolutional codes (TBCCs) have become a research hotspot in the short-block-length regime due to the growing interest in strong short packet com-munications with low latency and ultra-reliability. TBCCs can maintain the decoding performance without rate loss caused by the tailed bits in the traditional convolutional encoder, which also have good rate compatibility with bet¬ter decoding performance than those of the iterative scheme for short block length codes. In this paper, a search algorithm is proposed to construct a set of rate-compatible TBCCs (RC-TBCCs) with consistent good frame error rate (FER) performance for fixed information length at various code rates. The algorithm considers the minimum distance profile of TBCCs. A set of RC-TBCCs is constructed for code rates from 1/3 to 1/8. The simulation results show that the proposed RC-TBCCs are superior to the LTE standard RC-TBCCs at different code rates.
Databáze: OpenAIRE