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Contention-based Grant-free Transmission with Independent Multi-pilot Scheme
[article]
2020
arXiv
pre-print
Contention-based grant-free transmission is very promising for future massive machine-type communication (mMTC). In contention-based transmission, the random pilot collision is a challenging problem. To solve this problem, multiple pilots scheme is used to reduce the pilot collision probabliltiy. However, the existing work on multiple pilots relies on the low correlation of spatial channels, limiting its applicability. In this paper, an independent multi-pilot scheme is proposed, which utilizes
arXiv:2004.03225v1
fatcat:vdvgmxuoindfln4uxcbe3rje4e