TY - GEN
T1 - A New Class of DC-Free Run-Length Limited Codes
AU - Ngomseu Mambou, Elie
AU - Moualeu, Jules M.
AU - Swart, Theo G.
N1 - Publisher Copyright:
© 2023, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering.
PY - 2023
Y1 - 2023
N2 - The conventional 4B6B run-length limited (RLL) code recommended by the IEEE 802.15.7 standard for visible light communication (VLC) is memory consuming as it must be stored at both the encoder and decoder; additionally, it can only be decoded through maximum likelihood (ML) decoding which is costly in terms of computational complexity. In this paper, a new class of structured DC-free RLL code without using lookup tables is proposed. A case study of the 4B6B code that achieves better error correction performance compared to the conventional 4B6B codes in a concatenated scheme, is investigated. Through simulations and analysis, it has been established that polar codes and convolutional codes concatenated with the proposed 4B6B code outperforms most existing schemes at high signal-to-noise ratio (SNR) in terms of bit-error rate (BER) and frame-error rate (FER). At a FER of, the concatenated polar codes of length 128 with the proposed 4B6B code outperforms the same structure when using the traditional 4B6B code by 0.6 dB while maintaining the same complexity for encoding and decoding processes.
AB - The conventional 4B6B run-length limited (RLL) code recommended by the IEEE 802.15.7 standard for visible light communication (VLC) is memory consuming as it must be stored at both the encoder and decoder; additionally, it can only be decoded through maximum likelihood (ML) decoding which is costly in terms of computational complexity. In this paper, a new class of structured DC-free RLL code without using lookup tables is proposed. A case study of the 4B6B code that achieves better error correction performance compared to the conventional 4B6B codes in a concatenated scheme, is investigated. Through simulations and analysis, it has been established that polar codes and convolutional codes concatenated with the proposed 4B6B code outperforms most existing schemes at high signal-to-noise ratio (SNR) in terms of bit-error rate (BER) and frame-error rate (FER). At a FER of, the concatenated polar codes of length 128 with the proposed 4B6B code outperforms the same structure when using the traditional 4B6B code by 0.6 dB while maintaining the same complexity for encoding and decoding processes.
KW - DC-free
KW - Look-up tables
KW - Maximum likelihood decoding
KW - Polar codes
KW - Run-length limited codes
KW - Visible light communication
UR - http://www.scopus.com/inward/record.url?scp=85149659377&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-25271-6_21
DO - 10.1007/978-3-031-25271-6_21
M3 - Conference contribution
AN - SCOPUS:85149659377
SN - 9783031252709
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
SP - 332
EP - 341
BT - Pan-African Artificial Intelligence and Smart Systems - Second EAI International Conference, PAAISS 2022, Proceedings
A2 - Ngatched Nkouatchah, Telex Magloire
A2 - Woungang, Isaac
A2 - Tapamo, Jules-Raymond
A2 - Viriri, Serestina
PB - Springer Science and Business Media Deutschland GmbH
T2 - 2nd International Conference on Pan-African Intelligence and Smart Systems, PAAISS 2022
Y2 - 2 November 2022 through 4 November 2022
ER -