Multiuser detection of alamouti signals
IEEE Transactions on Communications
New rate-2 STBC design for 2 TX with reduced-complexity maximum likelihood decoding
IEEE Transactions on Wireless Communications
The Aladdin-Pythagoras space-time code
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
An elementary condition for non-norm elements
IEEE Transactions on Information Theory
Efficient soft-output demodulators for the golden code
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Fast maximum-likelihood decoding of the golden code
IEEE Transactions on Wireless Communications
The Asymmetric Golden Code for Fast Decoding on Time-Varying Channels
Wireless Personal Communications: An International Journal
Computers and Electrical Engineering
| Hi-index | 754.90 |
A space-time code is proposed that exhibits the highest coding gain among competing full-rate full transmit diversity space-time codes for the two transmit and receive antenna coherent quasi-static fading channel. The proposed code is derived from a layered architecture with real rotation of quadrature amplitude modulation (QAM) information symbols in two dimensions. The existing codes of similar architecture concentrate on application of complex full modulation diversity rotations or asymmetric real rotations. An analytic evaluation illustrates the significant improvement in coding gain achieved with the proposed code. Moreover, the coding gain of the proposed code is independent of its rate. This implies that the proposed code achieves the optimal diversity-multiplexing tradeoff curve for the two transmit antenna system. A stacked extension of the proposed code offers a reduced complexity capacity optimal alternative to the full diversity codes for larger number of transmit antennas. Performance enhancement in several scenarios is verified through simulations.