Title :
Decoding space-time codes with BLAST architectures
Author :
Biglieri, Ezio ; Taricco, Giorgio ; Tulino, Antonia
Author_Institution :
Politecnico di Torino, Italy
Abstract :
We describe how space-time codes can be decoded using a vertical BLAST architecture in a multiple-antenna transmission system. We first provide a general formulation of zero-forcing (ZF) and minimum mean-square error (MMSE) BLAST architectures. Next, we describe how these can be used to decode space-time trellis codes: the idea is to soft-decode sequentially segments of the trellis, and use the decoding results to remove spatial interference from subsequent segments. After the whole interference has been removed, the whole trellis is decoded.
Keywords :
decoding; least mean squares methods; space-time codes; trellis codes; MMSE architecture; V-BLAST; decoding; minimum mean-square error; multiple-antenna transmission system; soft-decoding; space-time codes; spatial interference; trellis codes; vertical BLAST architecture; zero-forcing architectures; Convolutional codes; Decoding; Interference; Random variables; Receiving antennas; Signal generators; Sociotechnical systems; Space time codes; Transmitting antennas; Viterbi algorithm;
Conference_Titel :
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7501-7
DOI :
10.1109/ISIT.2002.1023659
