Effects of quantization on channel-orthogonalized STBCs with different orthogonization schemes
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Space-frequency-coded MIMO OFDM receivers based on Gaussian message passing
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Quasi-orthogonal space-time-frequency trellis codes for two transmit antennas
IEEE Transactions on Wireless Communications
Differential quasi-orthogonal space-frequency trellis codes
IEEE Transactions on Wireless Communications
International Journal of Communication Systems
Wireless Personal Communications: An International Journal
Hi-index | 0.01 |
In this paper, we propose a novel class of Space-Frequency and Space-Time-Frequency block codes based on Quasi-Orthogonal designs, over a frequency selective Rayleigh fading channel. The proposed Space-Frequency code is able to achieve rate-one and full space and multipath diversity gains available in the MIMO-OFDM channel. As simulation results demonstrate, the code outperforms the existing Space-Frequency block codes in terms of bit error rate performance. By coding across the three dimension of space, time and frequency, we propose a Quasi-Orthogonal Space-Time-Frequency code that is capable of achieving rate-one and exploiting all of the spatial, multipath and temporal diversity gains offered by the channel. In case of a channel which is quasi-static over adjacent OFDM symbol durations, we propose a Space-Time-Frequency code that benefits from a reduced maximum likelihood decoding complexity.