Title :
A Concise Representation for the Soft-in Soft-out LMMSE Detector
Author :
Guo, Qinghua ; Huang, Defeng David
Author_Institution :
Sch. of EECE, Univ. of Western Australia, Crawley, WA, Australia
fDate :
5/1/2011 12:00:00 AM
Abstract :
An alternative simple derivation for the well-known soft-in soft-out LMMSE (linear minimum mean square error) detector in a turbo system is presented. The derivation leads to a concise representation for the LMMSE detector in terms of the extrinsic means and extrinsic variances of the data symbols, and provides new perspectives for its implementation.
Keywords :
least mean squares methods; signal detection; data symbols; linear minimum mean square error; soft-in soft-out LMMSE detector; turbo system; Binary phase shift keying; Complexity theory; Covariance matrix; Decoding; Detectors; Estimation; Iterative decoding; MMSE estimation; Turbo detection;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.032811.102073
