• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

User Clustering Scheme for Downlink of NOMA System

Vol. 14, No. 3, March 31, 2020
10.3837/tiis.2020.03.024, Download Paper (Free):

Abstract

An improved clustering scheme based on user group is proposed. Every two users are grouped among N-users in the allowed system according to their link gain from large to small. Each user group is numbered sequentially. Two user clusters are obtained according to the principle of maximizing link gain difference for the users in the first and last user groups. The remaining user groups are added to the two existing user clusters according to the parity of the group number. The clustering should be clustered again among the users in either user cluster if the throughput summation of a user cluster in NOMA is less than that of these users in orthogonal multiple access. The simulation results show that the proposed clustering scheme can increase the system throughput by about 8% compared with the hybrid clustering scheme when the number of users requiring service is 12.


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Cite this article

[IEEE Style]
L. Li, Z. Feng, Y. Tang, Z. Peng, L. Wang and W. Shao, "User Clustering Scheme for Downlink of NOMA System," KSII Transactions on Internet and Information Systems, vol. 14, no. 3, pp. 1363-1376, 2020. DOI: 10.3837/tiis.2020.03.024.

[ACM Style]
Li Li, Zhenghui Feng, Yanzhi Tang, Zhangjie Peng, Lisen Wang, and Weilu Shao. 2020. User Clustering Scheme for Downlink of NOMA System. KSII Transactions on Internet and Information Systems, 14, 3, (2020), 1363-1376. DOI: 10.3837/tiis.2020.03.024.