A capacity-based codebook design method for sparse code multiple access systems

@article{Zhang2016ACC,
  title={A capacity-based codebook design method for sparse code multiple access systems},
  author={Shutian Zhang and Kexin Xiao and Baicen Xiao and Zhiyong Chen and Bin Xia and Dageng Chen and Shaodan Ma},
  journal={2016 8th International Conference on Wireless Communications & Signal Processing (WCSP)},
  year={2016},
  pages={1-5}
}
Sparse code multiple access (SCMA) is a novel non-orthogonal multiple access scheme, which exploits a multidimensional constellation based on the non-orthogonal spreading technique. The SCMA multi-user codebook design is the bottleneck of system performance and there is no design guideline from the perspective of capacity. In this paper, a novel SCMA codebook design scheme is proposed to maximize the sum rate, where we transfer the design of multi-dimensional constellation sets to the… CONTINUE READING

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