Improved Viterbi decoder metrics for two-stage detectors in DS-CDMA.

Improved Viterbi decoder metrics for two-stage detectors in DS-CDMA.

Modified branch metrics are proposed for single-user Viterbi decoders in two-stage detectors for convolutionally-encoded code-division multiple-access (CDMA) systems with random spreading sequences. The modifications are based on modeling the residual multiple-access interference (RMAI) after subtra...

Täydet tiedot

Bibliografiset tiedot
Julkaisussa:IEEE Transactions on wireless communications 3, 5 (2004).
Päätekijä: Elezabi, A.
Aineistotyyppi: Artikkeli
Kieli:English
Aiheet:
DS-CDMA.
Euclidean branch metric.
Viterbi decoder metrics.
Convolutional code.
Direct sequence code division multiple access.
Random spreading sequences.
Residual multiple-access interference.
Subtractive interference cancellation.
Time-dependent variance.
Two-stage detectors.