512 search results - page 22 / 103 » Random Access Systems with a Time Varying Channel |
ETT
2000
13 years 10 months ago
2000
The input-output weight enumeration (distribution) function of the ensemble of serially concatenated turbo codes is derived, where the ensemble is generated by a uniform choice ov...
IAJIT
2010
13 years 9 months ago
2010
: In this paper, new code families are constructed for spectral-amplitude coding optical code division multiple access, called random diagonal code for spectral amplitude coding op...
ICC
2007
IEEE
14 years 5 months ago
2007
IEEE
—Cooperative diversity is effectively used to combat the correlated fading. In the existing papers on cooperative diversity, the fading channels are idealistically assumed to be ...
ACSAC
2002
IEEE
14 years 3 months ago
2002
IEEE
Secure computer systems use both mandatory and discretionary access controls to restrict the flow of information through legitimate communication channels such as files, shared ...
ICC
2008
IEEE
14 years 5 months ago
2008
IEEE
— In this paper, we propose the novel concept of Repeat Accumulate Code Division Multiple Access (RA-CDMA), which employs unique, user-specific channel code generator matrices (...