Evaluating the performance of turbo codes and turbo-coded modulation in a DS-CDMA environment.

Turbo codes have received great attention due to their outstanding performance. Unfortunately, a high performance is associated with large transmission delays, prohibiting an application for speech transmission. Hence, the aim of this paper is the comparison of turbo codes employing short interleave...

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Pubblicato in:	IEEE Journal on selected areas in communications 17, 12 (1999).
Autore principale:	Kuhn, V.
Natura:	Articolo
Lingua:	English
Soggetti:	BER. DS-CDMA environment. Bandwidth-efficient turbo-coded modulation. Bit error rate performance. Coherent demodulation. Convolutional codes. Direct sequence code division multiple access. High DS spreading. High code rates. High coding gain. High direct-sequence spreading. Large transmission delays. Low DS spreading. Low code rate. Mapper design. Performance evaluation. Receiver. Short interleavers. Simulation results. Soft-output demodulation algorithm. Transmitter. Turbo codes.