Contention-based Grant-free Transmission with Independent Multi-pilot Scheme

  title={Contention-based Grant-free Transmission with Independent Multi-pilot Scheme},
  author={Zhifeng Yuan and Weimin Li and Zhigang Li and Yuzhou Hu and Yihua Ma},
  journal={2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall)},
  • Zhifeng Yuan, Weimin Li, +2 authors Yihua Ma
  • Published 2020
  • Computer Science, Engineering, Mathematics
  • 2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall)
Contention-based grant-free transmission is very promising for future massive machine-type communication (mMTC). In contention-based transmission, the random pilot collision becomes a challenge. To solve it, multi-pilot scheme is proposed. However, the existing work relies on the low correlation of spatial channels, and cannot be applied when the number of antennas is relatively small. This paper proposes a novel independent multi-pilot scheme, which utilizes the diversity of multiple pilots… Expand
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