Title :
A practical MMSE-ML detector for a MIMO SC-FDMA system
Author :
Noh, Hoondong ; Kim, Myoungseok ; Ham, Jaesang ; Lee, Chungyong
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
fDate :
12/1/2009 12:00:00 AM
Abstract :
We propose a new minimum mean square error (MMSE) based maximum likelihood (ML) detector for a single carrier frequency division multiple access system. By utilizing the distance between decision line and MMSE soft-output, the proposed detector reduces the resources required to check superfluously accurate reliability of received symbol. The proposed detector provides almost same bit error rate with the conventional MMSE-ML detector while requiring significantly low computational complexity (below 10%) as SNR varies.
Keywords :
MIMO communication; computational complexity; error statistics; frequency division multiple access; least mean squares methods; maximum likelihood detection; MIMO SC-FDMA system; MMSE; bit error rate; computational complexity; maximum likelihood detector; minimum mean square error; single carrier frequency division multiple access system; Computational complexity; Detectors; Equalizers; Frequency conversion; Frequency domain analysis; MIMO; Maximum likelihood detection; Mean square error methods; OFDM; Receiving antennas; MIMO, SC-FDMA, MMSE-ML detection;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2009.12.091709
