Research Article
Semi-granted Sparse Code Multiple Access (SCMA) for 5G Networks (Invited Paper)
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@INPROCEEDINGS{10.1007/978-3-030-00410-1_44, author={Mao Yang and Bo Li and Zhicheng Bai and Xiaoya Zuo and Zhongjiang Yan and Yusheng Liang}, title={Semi-granted Sparse Code Multiple Access (SCMA) for 5G Networks (Invited Paper)}, proceedings={IoT as a Service. Third International Conference, IoTaaS 2017, Taichung, Taiwan, September 20--22, 2017, Proceedings}, proceedings_a={IOTAAS}, year={2018}, month={10}, keywords={Sparse code multiple access SCMA Non-orthogonal multiple access Multiple access Grant-free 5G}, doi={10.1007/978-3-030-00410-1_44} }- Mao Yang
Bo Li
Zhicheng Bai
Xiaoya Zuo
Zhongjiang Yan
Yusheng Liang
Year: 2018
Semi-granted Sparse Code Multiple Access (SCMA) for 5G Networks (Invited Paper)
IOTAAS
Springer
DOI: 10.1007/978-3-030-00410-1_44
Abstract
Sparse Code Multiple Access (SCMA) is a promising non-orthogonal multiple access technology for 5G radio access networks. It improves the connectivity and capacity. However, the two multiple access methods of SCMA: granted and grant-free cannot dynamically match the real-time demands since the resources allocated for the granted method and grant-free method are clearly separated with each other. This further deteriorates the system performance. This article proposes a semi-granted SCMA method, by enabling the granted demands and grant-free demands to share the same resources. Simulation results confirm that semi-granted SCMA matches the dynamically fluent demands and significantly improve the throughput of SCMA 5G system.
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