TY - GEN
T1 - An Low Density Parity-Check coded adaptive cooperation scheme based on Orthogonal Superposition Modulation
AU - Chen, Xiang
AU - Xie, Mingxiang
AU - Wang, Zhenyu
PY - 2013
Y1 - 2013
N2 - User Cooperation (UC) is a promising technology to obtain diversity gain at terminals. Superposition Modulation Cooperation (SMC) is a UC mode exploiting higher order modulation constellation to allow relay node (RN) transmitting his own local data together with the relay data from source node (SN). The throughput outperforms Amplify-and-Forward (AF), Decode-and-Forward (DF) and coded cooperation (CC) when channel state is good. Power allocation (PA) between the local signal and relay signal is crucial for the performance of SMC. An Adaptive Orthogonal Superposition Modulation Cooperation (OSMC) Scheme is designed based on the bit-level Mutual Information (MI) model to minimize the average outage probability of the three-node cooperation system. Moreover, Low Density Parity-Check (LDPC) code is introduced to further improve the performance. Theoretical analysis and simulation results indicate that the adaptive OSMC scheme improves the power efficiency significantly.
AB - User Cooperation (UC) is a promising technology to obtain diversity gain at terminals. Superposition Modulation Cooperation (SMC) is a UC mode exploiting higher order modulation constellation to allow relay node (RN) transmitting his own local data together with the relay data from source node (SN). The throughput outperforms Amplify-and-Forward (AF), Decode-and-Forward (DF) and coded cooperation (CC) when channel state is good. Power allocation (PA) between the local signal and relay signal is crucial for the performance of SMC. An Adaptive Orthogonal Superposition Modulation Cooperation (OSMC) Scheme is designed based on the bit-level Mutual Information (MI) model to minimize the average outage probability of the three-node cooperation system. Moreover, Low Density Parity-Check (LDPC) code is introduced to further improve the performance. Theoretical analysis and simulation results indicate that the adaptive OSMC scheme improves the power efficiency significantly.
KW - Cooperative Communication
KW - LDPC
KW - Mutual information (MI)
KW - Superposition Modulation Cooperation (SMC)
UR - http://www.scopus.com/inward/record.url?scp=84897746546&partnerID=8YFLogxK
U2 - 10.1109/CISP.2013.6743860
DO - 10.1109/CISP.2013.6743860
M3 - Conference contribution
AN - SCOPUS:84897746546
SN - 9781479927647
T3 - Proceedings of the 2013 6th International Congress on Image and Signal Processing, CISP 2013
SP - 1231
EP - 1235
BT - Proceedings of the 2013 6th International Congress on Image and Signal Processing, CISP 2013
T2 - 2013 6th International Congress on Image and Signal Processing, CISP 2013
Y2 - 16 December 2013 through 18 December 2013
ER -