TY - GEN
T1 - 2-Step QRM-MLBD using detection ordering for single-carrier transmission
AU - Temma, Katsuhiro
AU - Yamamoto, Tetsuya
AU - Adachi, Fumiyuki
PY - 2012
Y1 - 2012
N2 - 2-step maximum likelihood block signal detection employing QR decomposition and M-algorithm (QRM-MLBD) can significantly improve the bit error rate (BER) performance of single-carrier (SC) transmission while reducing the computational complexity compared to maximum likelihood detection (MLD). In 2-step QRM-MLBD, unreliable symbol candidates are removed by performing minimum mean square error based frequency-domain equalization (MMSE-FDE) prior to QRM-MLBD. However, a large number M of surviving paths is still required in the M-algorithm to achieve a BER performance close to the matched filter (MF) bound. In this paper, to remedy this problem, we introduce a detection ordering to 2-step QRM-MLBD. We will show by computer simulation that the use of detection ordering can achieve the same BER performance as 2-step QRM-MLBD while reducing the computational complexity.
AB - 2-step maximum likelihood block signal detection employing QR decomposition and M-algorithm (QRM-MLBD) can significantly improve the bit error rate (BER) performance of single-carrier (SC) transmission while reducing the computational complexity compared to maximum likelihood detection (MLD). In 2-step QRM-MLBD, unreliable symbol candidates are removed by performing minimum mean square error based frequency-domain equalization (MMSE-FDE) prior to QRM-MLBD. However, a large number M of surviving paths is still required in the M-algorithm to achieve a BER performance close to the matched filter (MF) bound. In this paper, to remedy this problem, we introduce a detection ordering to 2-step QRM-MLBD. We will show by computer simulation that the use of detection ordering can achieve the same BER performance as 2-step QRM-MLBD while reducing the computational complexity.
KW - M-algorithm
KW - MMSE-FDE
KW - QR decomposition
KW - component; Single-carrier
KW - near maximum likelihood detection
UR - http://www.scopus.com/inward/record.url?scp=84864998284&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864998284&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2012.6240210
DO - 10.1109/VETECS.2012.6240210
M3 - Conference contribution
AN - SCOPUS:84864998284
SN - 9781467309905
T3 - IEEE Vehicular Technology Conference
BT - IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings
T2 - IEEE 75th Vehicular Technology Conference, VTC Spring 2012
Y2 - 6 May 2012 through 9 June 2012
ER -