Reduced complexity iterative multi-user detection for DS/CDMA with FEC

This paper discusses an iterative multi-user receiver for code-division multiple access (CDMA) with forward error control (FEC) coding. The receiver is derived from the maximum a-posteriori (MAP) criteria for the joint received signal, but uses only single user MAP decoders. Iterations of the receiv...

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Bibliographic Details
Main Authors: Reed, M.C., Alexander, P.D., Asenstorfer, J.A., Schlegel, C.B.
Format: Conference Proceeding
Language:English
Subjects:
Convolutional codes
Detectors
Gaussian noise
Iterative decoding
Matched filters
Memoryless systems
Multiaccess communication
Multiple access interference
Multiuser detection
Power system modeling
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Summary:This paper discusses an iterative multi-user receiver for code-division multiple access (CDMA) with forward error control (FEC) coding. The receiver is derived from the maximum a-posteriori (MAP) criteria for the joint received signal, but uses only single user MAP decoders. Iterations of the receiver/decoder set are used as a mechanism for improving performance. Sub-optimisations are analysed, simulated, and discussed as a way of reducing the complexity.
ISSN:1091-8442
DOI:10.1109/ICUPC.1997.625465