TY - GEN
T1 - Computationally efficient 2-step QRM-MLD for single-carrier transmissions
AU - Temma, Katsuhiro
AU - Yamamoto, Tetsuya
AU - Adachi, Fumiyuki
PY - 2010
Y1 - 2010
N2 - Recently, a frequency-domain block signal detection (FDBD) using maximum likelihood detection (MLD) employing QR decomposition and M-algorithm (QRM-MLD) was proposed for the reception of the single-carrier (SC) signals transmitted over a frequency-selective fading channel. SC-FDBD with QRMMLD can significantly improve the bit error rate (BER) performance of SC transmission while reducing significantly the computational complexity compared to the MLD. However, its computational complexity is still high. In this paper, we propose a computationally efficient 2-step QRM-MLD SC-FDBD. Compared to conventional QRM-MLD, the number of symbol candidates can be reduced by using the decision made by minimum mean square error based frequency-domain equalization (MMSE-FDE). We evaluate the BER performance achievable by 2-step QRM-MLD and show that it can significantly reduce the computational complexity while keeping the BER performance almost the same as the conventional QRMMLD.
AB - Recently, a frequency-domain block signal detection (FDBD) using maximum likelihood detection (MLD) employing QR decomposition and M-algorithm (QRM-MLD) was proposed for the reception of the single-carrier (SC) signals transmitted over a frequency-selective fading channel. SC-FDBD with QRMMLD can significantly improve the bit error rate (BER) performance of SC transmission while reducing significantly the computational complexity compared to the MLD. However, its computational complexity is still high. In this paper, we propose a computationally efficient 2-step QRM-MLD SC-FDBD. Compared to conventional QRM-MLD, the number of symbol candidates can be reduced by using the decision made by minimum mean square error based frequency-domain equalization (MMSE-FDE). We evaluate the BER performance achievable by 2-step QRM-MLD and show that it can significantly reduce the computational complexity while keeping the BER performance almost the same as the conventional QRMMLD.
KW - Block signal detection
KW - MMSE-FDE
KW - QRM-MLD
KW - Single-carrier
UR - http://www.scopus.com/inward/record.url?scp=79851501065&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79851501065&partnerID=8YFLogxK
U2 - 10.1109/ICCS.2010.5685879
DO - 10.1109/ICCS.2010.5685879
M3 - Conference contribution
AN - SCOPUS:79851501065
SN - 9781424470068
T3 - 12th IEEE International Conference on Communication Systems 2010, ICCS 2010
SP - 782
EP - 786
BT - 12th IEEE International Conference on Communication Systems 2010, ICCS 2010
T2 - 12th IEEE International Conference on Communication Systems 2010, ICCS 2010
Y2 - 17 November 2010 through 19 November 2010
ER -