Paper Info
Title
On optimal constellations for quasi-orthogonal space-time codes
Abstract
Space-time block codes (STBC) exploit multiple-input multiple-output (MIMO) communication systems in order to obtain diversity for high link reliability. Unfortunately, it is not possible to construct STBC with transmission rate equal to one for more than two transmit antennas. A way to achieve higher transmission rates is to use quasi-orthogonal STBC (QSTBC). We can improve the performance of QSTBC through a special constellation rotation. We derive the optimal rotation analytically. Numerical simulations show that our analytical approach outperforms the regular QSTBC as well as approaches where a simulative method is used in order to obtain better performance in comparison to regular QSTBC. In addition, we study the impact of the rotation on the achievable portion of the outage capacity.
Year
DOI
Venue
2003
10.1109/ICASSP.2003.1202650
ICASSP '03). 2003 IEEE International Conference
Keywords
Field
DocType
MIMO systems,block codes,diversity reception,space-time codes,MIMO communication systems,constellation rotation,diversity,link reliability,multiple-input multiple-output communication systems,outage capacity,quasi-orthogonal STBC,quasiorthogonal STBC,quasiorthogonal space-time code constellations,space-time block codes,transmit antennas
Space time,Topology,Mathematical optimization,Telecommunications,Computer science,Block code,Communications system,MIMO,Constellation,Additive white Gaussian noise,Space–time block code,Bit error rate
Conference
Volume
ISSN
ISBN
4
1520-6149
0-7803-7663-3
Citations 
PageRank 
References 
1
0.37
4
Authors
2
Name
Order
Citations
PageRank
Aydin Sezgin159675.27
Eduard A. Jorswieck270745.58