Abstract | ||
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In the 5G mobile communication network, massive connectivity is one of the requirements. In this paper, we study the SCMA contention-based uplink to achieve massive connectivity. SCMA can provide a higher overload with limited resources. On this basis, the uplink users adopt the mechanism of random back-off to contend to access the system. The number of access users can be further increase. The traditional OFDMA and SCMA with a scheduling method were compared in the simulation. The simulation results show that our approach has a good performance in the number of access users and throughput over a certain limit. |
Year | DOI | Venue |
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2017 | 10.1007/978-981-10-6571-2_122 | Lecture Notes in Electrical Engineering |
Keywords | DocType | Volume |
SCMA,Uplink,Contention-based,Random back-off | Conference | 463 |
ISSN | Citations | PageRank |
1876-1100 | 0 | 0.34 |
References | Authors | |
3 | 2 |