Title :
Improved upper bounds on error-probability for biorthogonal trellis-coded CDMA systems
Author :
Choe, Sangho ; Georghiades, Costas N. ; Narayanan, Krishna R.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
We employ the transfer function approach to obtain error-probability upper bounds for asynchronous trellis-coded CDMA systems based on biorthogonal signature sequences. The technique provides uniformly tight bounds for the biorthogonal sequence based trellis codes, both with and without parallel transitions, in contrast to previously published results.
Keywords :
code division multiple access; error statistics; multiuser channels; sequences; transfer functions; trellis codes; Gaussian quadrature rules; asynchronous trellis-coded CDMA systems; biorthogonal signature sequences; biorthogonal trellis-coded CDMA systems; error probability; parallel transition; transfer function; trellis codes; uniformly tight bounds; upper bounds; Computational complexity; Convolution; Convolutional codes; Delay effects; Density functional theory; Error probability; Interference; Multiaccess communication; Transfer functions; Upper bound;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2002.803473
