Structures of space-time codes and multipath MIMO channels

Structures of space-time codes and multipath MIMO channels

In a wireless system with multipath multiple-input multiple-output (MIMO) channels using antenna arrays, the delay spread of the multipaths results in intersymbol interference (ISI) and channel frequency selectivity. In contrast with the channel frequency selectivity, spatial gains at the multipath...

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Veröffentlicht in:IEEE signal processing letters 2004-04, Vol.11 (4), p.439-442
Hauptverfasser: Maa, C.-S., Wang, Y.-C., Chen, J.-T.
Format: Artikel
Sprache:eng
Schlagworte:
Antenna arrays
Audio frequencies
Channels
Delay
Fading
Frequency
Gain
Intersymbol interference
MIMO
Mobile communication
Modulation coding
Receiving antennas
Selectivity
Signal processing
Spreads
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Beschreibung
Zusammenfassung:In a wireless system with multipath multiple-input multiple-output (MIMO) channels using antenna arrays, the delay spread of the multipaths results in intersymbol interference (ISI) and channel frequency selectivity. In contrast with the channel frequency selectivity, spatial gains at the multipath angles also naturally result in channel angle selectivity. Based on the channel selectivity structures characterized by the path delays and the path directions-of-departure/arrival, we seek new insights into the matching of space-time codes and multipath MIMO channels in their angle-frequency (AF) structures.
ISSN:1070-9908
1558-2361
DOI:10.1109/LSP.2004.824055