In this paper we prove that trace-orthogonal space-time coding provides a necessary and sufficient condition for information loss-less coding in a multiple access system, where each user encodes its own symbols independently of the other users. Then, we show that the sub-optimal MMSE decoder can be implemented very simply as a set of scalar decoders and we prove that, under the assumption of using the (sub-optimal) MMSE decoder, the traceorthogonal design with scaled unitary coding matrices yields minimum BER for each user. © 2005 IEEE.

Trace orthogonal space-time coding for multiuser systems / BARBAROSSA, Sergio; A., FASANO. - III(2005), pp. iii/1093-iii/1096. ((Intervento presentato al convegno International Conference on Acoustic Speech and Signal Processing (ICASSP) 2005 tenutosi a Philadelphia; United States nel March 2005 [10.1109/ICASSP.2005.1415904].

Trace orthogonal space-time coding for multiuser systems

BARBAROSSA, Sergio;
2005

Abstract

In this paper we prove that trace-orthogonal space-time coding provides a necessary and sufficient condition for information loss-less coding in a multiple access system, where each user encodes its own symbols independently of the other users. Then, we show that the sub-optimal MMSE decoder can be implemented very simply as a set of scalar decoders and we prove that, under the assumption of using the (sub-optimal) MMSE decoder, the traceorthogonal design with scaled unitary coding matrices yields minimum BER for each user. © 2005 IEEE.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/189778
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