TY - GEN
T1 - A joint precoding scheme for MIMO systems with distributed single antenna AF relays
AU - Lee, Bumsoo
AU - Lee, Chungyong
PY - 2012
Y1 - 2012
N2 - We propose a joint precoding scheme for multiple-input multiple-output systems with the aid of distributed multiple single antenna amplify-and-forward relays. Unlike the existing single relay systems equipped with a complex full matrix for relay precoding, the proposed scheme uses a real diagonal matrix whose diagonal elements are the relay gains, so that it can reduce the feedback load dramatically. Based on an iterative procedure, a source precoding matrix and each relay gain are decided, and then a power allocation between source and relays is performed. In terms of BER performance, simulation results show that the proposed scheme can perform close to the conventional scheme with small feedback load.
AB - We propose a joint precoding scheme for multiple-input multiple-output systems with the aid of distributed multiple single antenna amplify-and-forward relays. Unlike the existing single relay systems equipped with a complex full matrix for relay precoding, the proposed scheme uses a real diagonal matrix whose diagonal elements are the relay gains, so that it can reduce the feedback load dramatically. Based on an iterative procedure, a source precoding matrix and each relay gain are decided, and then a power allocation between source and relays is performed. In terms of BER performance, simulation results show that the proposed scheme can perform close to the conventional scheme with small feedback load.
UR - http://www.scopus.com/inward/record.url?scp=84872418739&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872418739&partnerID=8YFLogxK
U2 - 10.1109/ICTC.2012.6387113
DO - 10.1109/ICTC.2012.6387113
M3 - Conference contribution
AN - SCOPUS:84872418739
SN - 9781467348287
T3 - International Conference on ICT Convergence
SP - 666
EP - 670
BT - 2012 International Conference on ICT Convergence
T2 - 2012 International Conference on ICT Convergence: "Global Open Innovation Summit for Smart ICT Convergence", ICTC 2012
Y2 - 15 October 2012 through 17 October 2012
ER -