Research Article
Joint Multi-Layer Multi-Rate Code and Quasi-Orthogonal Space-Time Code Scheme with Good Diversity-Multiplexing Tradeoffs
@INPROCEEDINGS{10.4108/icst.chinacom.2014.256341, author={Xu jin and Ma weiguo and Dai xiaoming and Wang Yingmin}, title={Joint Multi-Layer Multi-Rate Code and Quasi-Orthogonal Space-Time Code Scheme with Good Diversity-Multiplexing Tradeoffs}, proceedings={9th International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2015}, month={1}, keywords={quasi-orthogonal space-time block coding (qostbc) multi-layer multi-rate (mlmr) ordered successive interferencecancellation (osic) multiple input multiple output (mimo)}, doi={10.4108/icst.chinacom.2014.256341} }- Xu jin
Ma weiguo
Dai xiaoming
Wang Yingmin
Year: 2015
Joint Multi-Layer Multi-Rate Code and Quasi-Orthogonal Space-Time Code Scheme with Good Diversity-Multiplexing Tradeoffs
CHINACOM
IEEE
DOI: 10.4108/icst.chinacom.2014.256341
Abstract
In this work, a transmission scheme that combines multi-layer multi-rate (MLMR) coding with quasi-orthogonal space-time block coding (QO-STBC) is proposed. Firstly, the proposed QO-STBC codewords set unequal diversity orders for different transmitted spatial data layers. Then, different spatial data layers are protected by different-rate channel codes with the aim of achieving the same post-decoding performance. Therefore, the overall performance can be improved. The quasi-orthogonal structure lends itself to low complexity high performance ordered successive interference cancellation (OSIC) receiver. Simulation results show that the proposed MLMR coded QO-STBC scheme achieves up to 1.3dB performance gain over conventional bit interleaved coded modulation (BICM) scheme and high up to 7.8dB over BICM based V-BLAST system, and achieves better diversity-multiplexing tradeoffs.