Title :
Optimum soft output MAP detector for coded multiuser communications
Author :
Vojcic, Branimir R. ; Shama, Yaacov ; Pickholtz, Raymond L.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., George Washington Univ., Washington, DC, USA
fDate :
29 Jun-4 Jul 1997
Abstract :
In this paper we consider optimum disjoint multiuser detection and FEC decoding. The soft output MAP detector produces sequences of a posteriori probabilities (APP), that constitute optimum inputs to the corresponding FEC decoders. This decoder outperforms considerably the hard output MAP decoder
Keywords :
Gaussian channels; channel coding; decoding; forward error correction; maximum likelihood estimation; multi-access systems; sequences; signal detection; FEC decoding; a posteriori probabilities; coded multiuser communications; optimum disjoint multiuser detection; optimum inputs; optimum soft output MAP detector; sequences; AWGN; Computational complexity; Convolutional codes; Detectors; Forward error correction; Maximum likelihood decoding; Maximum likelihood detection; Maximum likelihood estimation; Multiuser detection; Turbo codes;
Conference_Titel :
Information Theory. 1997. Proceedings., 1997 IEEE International Symposium on
Conference_Location :
Ulm
Print_ISBN :
0-7803-3956-8
DOI :
10.1109/ISIT.1997.613144
