中文
Affiliations:
1. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
2. Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China
* Corresponding author (lianj15@mails.tsinghua.edu.cn
国家重点基础研究发展计划(973)(2012CB316002)
国家高技术研究发展计划(863)(2015AA01A701)
国家自然科学基金(61201192,61631013)
国家科技重大专项课题(2016ZX03001009)
清华大学自主科研项目(2015Z02-3)
SCMA
hyper-cellular network
grant-free access
green communication
control channel
Figure 1
(Color online) SCMA factor graph when all users adopt different codebook. $L=4$, $N=2$, $K=6$, $U=6$
Figure 2
(Color online) SCMA factor graph when codebook collision occurs on codebook 3
Figure 3
(Color online) Codebook collision pattern under codebook-hopping SCMA scheme
Figure 4
(Color online) Codebook collision pattern under original SCMA scheme
Figure 5
(Color online) BLER of different schemes
Figure 6
(Color online) Complexity of different schemes
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