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 | |
| 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 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
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
}
TY - GEN
T1 - Spatially-coupled LDPC coding in cooperative wireless networks
AU - Jayakody, Dushantha Nalin K
AU - Skachek, Vitaly
AU - Chen, Bin
PY - 2016/9/12
Y1 - 2016/9/12
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84989868428&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84989868428&partnerID=8YFLogxK
U2 - 10.1109/WCNC.2016.7564992
DO - 10.1109/WCNC.2016.7564992
M3 - Conference contribution
AN - SCOPUS:84989868428
VL - 2016-September
BT - 2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
ER -