Spatially-coupled LDPC coding in cooperative wireless networks

Dushantha Nalin K Jayakody, Vitaly Skachek, Bin Chen

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper proposes a new technique of spatially-coupled low-density parity-check (SC-LDPC) code-based soft information relaying scheme for a two-way relay system. We introduce an optimized SC-LDPC codes in relay channels. A more precise model is proposed to characterize the soft noise on the soft symbols, using a pre-calculated look-up table at the destination. This requires less signalling overhead compared to existing soft noise modelling techniques. We also introduce a variance correction factor to provide a rectification to the equivalent total noise variance at the destination. Finally, we modify the LLR former at the destination which is tailored to the proposed soft information relaying technique. Simulation results demonstrate that the proposed relay protocol yields an improved BER performance compared to competitive schemes proposed in the literature.

Original language	English
Title of host publication	2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Volume	2016-September
ISBN (Electronic)	9781467398145
DOIs	https://doi.org/10.1109/WCNC.2016.7564992
Publication status	Published - 12 Sep 2016
Event	2016 IEEE Wireless Communications and Networking Conference, WCNC 2016 - Doha, Qatar Duration: 3 Apr 2016 → 7 Apr 2016

Conference

Conference	2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
Country	Qatar
City	Doha
Period	3.4.16 → 7.4.16

Fingerprint

Wireless networks

Network protocols

ASJC Scopus subject areas

Engineering(all)

Cite this

Jayakody, D. N. K., Skachek, V., & Chen, B. (2016). Spatially-coupled LDPC coding in cooperative wireless networks. In 2016 IEEE Wireless Communications and Networking Conference, WCNC 2016 (Vol. 2016-September). [7564992] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WCNC.2016.7564992

Spatially-coupled LDPC coding in cooperative wireless networks. / Jayakody, Dushantha Nalin K; Skachek, Vitaly; Chen, Bin.

2016 IEEE Wireless Communications and Networking Conference, WCNC 2016. Vol. 2016-September Institute of Electrical and Electronics Engineers Inc., 2016. 7564992.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Jayakody, DNK, Skachek, V & Chen, B 2016, Spatially-coupled LDPC coding in cooperative wireless networks. in 2016 IEEE Wireless Communications and Networking Conference, WCNC 2016. vol. 2016-September, 7564992, Institute of Electrical and Electronics Engineers Inc., 2016 IEEE Wireless Communications and Networking Conference, WCNC 2016, Doha, Qatar, 3.4.16. https://doi.org/10.1109/WCNC.2016.7564992

Jayakody DNK, Skachek V, Chen B. Spatially-coupled LDPC coding in cooperative wireless networks. In 2016 IEEE Wireless Communications and Networking Conference, WCNC 2016. Vol. 2016-September. Institute of Electrical and Electronics Engineers Inc. 2016. 7564992 https://doi.org/10.1109/WCNC.2016.7564992

Jayakody, Dushantha Nalin K ; Skachek, Vitaly ; Chen, Bin. / Spatially-coupled LDPC coding in cooperative wireless networks. 2016 IEEE Wireless Communications and Networking Conference, WCNC 2016. Vol. 2016-September Institute of Electrical and Electronics Engineers Inc., 2016.

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Access to Document

10.1109/WCNC.2016.7564992