SCMA for downlink multiple access of 5G wireless networks

@article{Nikopour2014SCMAFD,
  title={SCMA for downlink multiple access of 5G wireless networks},
  author={Hosein Nikopour and Eric Yi and Alireza Bayesteh and Kelvin Au and Mark Hawryluck and Hadi Baligh and Jianglei Ma},
  journal={2014 IEEE Global Communications Conference},
  year={2014},
  pages={3940-3945}
}
Sparse code multiple access (SCMA) is a new frequency domain non-orthogonal multiple-access technique which can improve spectral efficiency of wireless radio access. With SCMA, different incoming data streams are directly mapped to codewords of different multi-dimensional cookbooks, where each codeword represents a spread transmission layer. Multiple SCMA layers share the same time-frequency resources of OFDMA. The sparsity of codewords makes the near-optimal detection feasible through… CONTINUE READING
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