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JCT
2007
14 years 11 months ago
2007
ABSTRACT. We present an extension of the Delsarte linear programming method for spherical codes. For several dimensions it yields improved upper bounds including some new bounds on...
VTC
2007
IEEE
15 years 6 months ago
2007
IEEE
— In this paper we introduce a new class of space-time trellis codes (STTC). We call them Balanced STTC (B-STTC) because the points of the constellation are used with the same pr...
ISCAS
2007
IEEE
15 years 6 months ago
2007
IEEE
Abstract— A low-density parity-check (LDPC) decoder architecture that supports variable block sizes and multiple code rates is presented. The proposed architecture is based on th...
CORR
2007
Springer
14 years 11 months ago
2007
Springer
—We show an interesting pairwise balanced design (PBD)-closure result for the set of lengths of constant-composition codes whose distance and size meet certain conditions. A cons...
ICC
2007
IEEE
15 years 6 months ago
2007
IEEE
— In wireless networks, the use of collaboration has been shown to provide an increase in reliability due to an increase in diversity. Specifically it has been shown that by havi...