Title :
Breadth-first maximum likelihood detection in multiuser CDMA
Author :
Rasmussen, Lars K. ; Lim, Teng J. ; Aulin, Tor M.
Author_Institution :
Centre for Wireless Commun., Singapore
fDate :
10/1/1997 12:00:00 AM
Abstract :
In this letter, we derive a recursive, additive metric for complexity-constrained maximum likelihood detection for multiuser CDMA using breadth-first detection algorithms. The metric requires linear filtering of the matched-filtered received signal vector. It is shown that a class of filters fulfilling certain requirements lead to identical performance
Keywords :
code division multiple access; computational complexity; filtering theory; matched filters; maximum likelihood detection; breadth-first detection algorithms; complexity-constrained detection; linear filtering; matched-filtered received signal vector; maximum likelihood detection; multiuser CDMA; recursive additive metric; Additive white noise; Detection algorithms; Detectors; Gaussian noise; Maximum likelihood decoding; Maximum likelihood detection; Multiaccess communication; Noise level; Nonlinear filters; Vectors;
Journal_Title :
Communications, IEEE Transactions on
