Research Article
Combined turbo coding and non-coherent space-time modulation in rapid Rayleigh fading channels
@INPROCEEDINGS{10.4108/chinacom.2010.76, author={Xuefeng Ding and Dapeng Zhang}, title={Combined turbo coding and non-coherent space-time modulation in rapid Rayleigh fading channels}, proceedings={5th International ICST Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2011}, month={1}, keywords={Artificial neural networks Decoding}, doi={10.4108/chinacom.2010.76} }- Xuefeng Ding
Dapeng Zhang
Year: 2011
Combined turbo coding and non-coherent space-time modulation in rapid Rayleigh fading channels
CHINACOM
ICST
DOI: 10.4108/chinacom.2010.76
Abstract
Unitary space-time modulation (USTM) can perform well without channel state information (CSI) in fast fading channels when signal-to-noise ratio (SNR) is large enough. However, it loses its advantages at low SNR or the channel coherence interval is T = 1. In this condition, the information should be carried by multilevel structured constellations with a single transmit antenna. Even though, the bit error rate (BER) of this kind of signalling scheme is still too high to accept. In this paper, we propose a simple non-coherent space-time modulation scheme, combine it with turbo coding, and derive the corresponding decoding algorithm. Simulation results show that it can greatly improve the system performance. With multiple receive antennas, the BER can be further decreased.