Title :
Structures of space-time codes and multipath MIMO channels
Author :
Maa, Ching-Shyang ; Wang, Yeong-Cheng ; Chen, Jiunn-Tsair
Author_Institution :
Inst. of Commun. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
fDate :
4/1/2004 12:00:00 AM
Abstract :
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.
Keywords :
MIMO systems; antenna arrays; delays; diversity reception; intersymbol interference; multipath channels; space-time codes; ISI; angle-frequency structures; antenna arrays; channel angle selectivity; channel frequency selectivity; delay spread; frequency-selective channels; intersymbol interference; multipath MIMO channels; multipath channels; multiple-input multiple-output channels; path direction-of-arrival; path direction-of-departure; receive diversity; space-time code structures; spatial gains; transmit diversity; Antenna arrays; Delay; Fading; Frequency; Intersymbol interference; MIMO; Mobile communication; Modulation coding; Receiving antennas; Signal processing;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2004.824055
