Abstract
Low-density lattice codes (LDLCs) are known for their high decoding efficiency and near-capacity performance on point-to-point Gaussian channels. In this paper, we present a distributed LDLC-based cooperative relaying scheme for the multiple-access relay channel (MARC). The relay node decodes LDLC coded packets from two sources and forwards a network-coded combination to the destination. At the destination, a joint iterative decoding structure is designed to exploit the diversity gain as well as coding gain. For the LDLC-based network coding operation at the relay, we consider two alternative methods which offer a tradeoff between implementation complexity and performance, called superposition LDLC (S-LDLC) and modulo-addition LDLC (MA-LDLC). Simulation results show that the proposed scheme can provide more diversity gain and up to 6.2 dB coding gain when compared with non-cooperative LDLC coding and uncoded network-coded transmission.
| Original language | English |
|---|---|
| Title of host publication | International Symposium on Turbo Codes and Iterative Information Processing, ISTC |
| Publisher | IEEE Computer Society |
| Pages | 254-258 |
| Number of pages | 5 |
| ISBN (Electronic) | 9781479959853 |
| DOIs | |
| Publication status | Published - 12 Nov 2014 |
| Externally published | Yes |
| Event | 2014 8th International Symposium on Turbo Codes and Iterative Information Processing, ISTC 2014 - Bremen, Germany Duration: 18 Aug 2014 → 22 Aug 2014 |
Conference
| Conference | 2014 8th International Symposium on Turbo Codes and Iterative Information Processing, ISTC 2014 |
|---|---|
| Country | Germany |
| City | Bremen |
| Period | 18.8.14 → 22.8.14 |
Fingerprint
ASJC Scopus subject areas
- Computational Theory and Mathematics
- Information Systems
- Theoretical Computer Science
Cite this
Cooperative relaying with low-density lattice coding and joint iterative decoding. / Chen, Bin; Jayakody, Dushantha N K; Flanagan, Mark F.
International Symposium on Turbo Codes and Iterative Information Processing, ISTC. IEEE Computer Society, 2014. p. 254-258 6955124.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
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TY - GEN
T1 - Cooperative relaying with low-density lattice coding and joint iterative decoding
AU - Chen, Bin
AU - Jayakody, Dushantha N K
AU - Flanagan, Mark F.
PY - 2014/11/12
Y1 - 2014/11/12
N2 - Low-density lattice codes (LDLCs) are known for their high decoding efficiency and near-capacity performance on point-to-point Gaussian channels. In this paper, we present a distributed LDLC-based cooperative relaying scheme for the multiple-access relay channel (MARC). The relay node decodes LDLC coded packets from two sources and forwards a network-coded combination to the destination. At the destination, a joint iterative decoding structure is designed to exploit the diversity gain as well as coding gain. For the LDLC-based network coding operation at the relay, we consider two alternative methods which offer a tradeoff between implementation complexity and performance, called superposition LDLC (S-LDLC) and modulo-addition LDLC (MA-LDLC). Simulation results show that the proposed scheme can provide more diversity gain and up to 6.2 dB coding gain when compared with non-cooperative LDLC coding and uncoded network-coded transmission.
AB - Low-density lattice codes (LDLCs) are known for their high decoding efficiency and near-capacity performance on point-to-point Gaussian channels. In this paper, we present a distributed LDLC-based cooperative relaying scheme for the multiple-access relay channel (MARC). The relay node decodes LDLC coded packets from two sources and forwards a network-coded combination to the destination. At the destination, a joint iterative decoding structure is designed to exploit the diversity gain as well as coding gain. For the LDLC-based network coding operation at the relay, we consider two alternative methods which offer a tradeoff between implementation complexity and performance, called superposition LDLC (S-LDLC) and modulo-addition LDLC (MA-LDLC). Simulation results show that the proposed scheme can provide more diversity gain and up to 6.2 dB coding gain when compared with non-cooperative LDLC coding and uncoded network-coded transmission.
UR - http://www.scopus.com/inward/record.url?scp=84911938612&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84911938612&partnerID=8YFLogxK
U2 - 10.1109/ISTC.2014.6955124
DO - 10.1109/ISTC.2014.6955124
M3 - Conference contribution
AN - SCOPUS:84911938612
SP - 254
EP - 258
BT - International Symposium on Turbo Codes and Iterative Information Processing, ISTC
PB - IEEE Computer Society
ER -