Title :
Extended Alamouti codes in correlated channels using partial feedback
Author :
Badic, Biljana ; Rupp, Markus ; Weinrichter, Hans
Author_Institution :
Inst. for Commun. & Radio Frequency Eng., Vienna Univ. of Technol., Austria
Abstract :
In this paper we present a family of quasi-orthogonal space-time codes for correlated MIMO (multi-input/multi-output) channels using four and eight transmit antennas when only partial channel state information is sent back to the transmitter. Transmit diversity is improved up to nearly the optimum diversity value. This high diversity can be exploited with zero forcing receivers as well as with maximum-likelihood receivers.
Keywords :
MIMO systems; antenna arrays; block codes; channel coding; correlation methods; diversity reception; feedback; matrix algebra; maximum likelihood detection; radio transmitters; space-time codes; transmitting antennas; Alamouti codes; channel state information; correlated MIMO channels; maximum-likelihood receivers; multiple-input multiple-output channels; optimum diversity value; partial feedback; quasiorthogonal space-time codes; transmit antennas; zero forcing receivers; Bit error rate; Block codes; Channel state information; Feedback; MIMO; Maximum likelihood decoding; Radio transmitters; Receiving antennas; Switches; Transmitting antennas;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1312631
