Title :
A Space-Time Block Coded Multiuser MIMO Downlink Transmission Scheme
Author :
Hong, Yi ; Viterbo, Emanuele ; Belfiore, Jean-Claude
Author_Institution :
Inst. for Telecom. Res., South Australia Univ., SA
Abstract :
In this paper, we consider the downlink of a space time block coded multiuser multiple-input multiple-output (MIMO) system. We propose a transmission scheme to support highest possible data rate and full diversity for multiuser MIMO systems. For this, threaded algebraic space-time block codes and perfect space-time block codes are employed. Different spreading matrices are used to separate the data streams of multiple users. After despreading the signal sequence at the receiver of each user, the maximum likelihood decoding is obtained by a lattice decoder. Performance of the multiuser MIMO system in the presence of multiple access interference is evaluated by simulations in terms of block error rate
Keywords :
MIMO systems; block codes; data communication; diversity reception; error statistics; interference (signal); matrix algebra; maximum likelihood decoding; multi-access systems; space-time codes; block error rate; data streams; full diversity; lattice decoder; maximum likelihood decoding; multiple access interference; multiple-input multiple-output system; multiuser MIMO downlink transmission scheme; signal sequence; spreading matrices; threaded algebraic space-time block codes; Base stations; Block codes; Diversity reception; Downlink; Error analysis; Lattices; MIMO; Maximum likelihood decoding; Multiple access interference; Receiving antennas; MIMO; Perfect STBC; TAST codes; downlink; multiuser;
Conference_Titel :
Information Theory, 2006 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
1-4244-0505-X
Electronic_ISBN :
1-4244-0504-1
DOI :
10.1109/ISIT.2006.261845
