Matching theory based user-grouping for indoor non-orthogonal multiple access visible light communication heterogeneous networks

被引:2
作者
Chen, Zhengxi [1 ]
Huang, Zhitong [1 ]
Ji, Yuefeng [1 ]
机构
[1] Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
基金
中国国家自然科学基金;
关键词
visible light communication; non-orthogonal multiple access; matching theory; user grouping; POWER ALLOCATION; PERFORMANCE; VLC; OPPORTUNITIES; CHALLENGES; SYSTEMS;
D O I
10.3788/COL202018.060602
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
This Letter proposes a model of indoor visible light communication (VLC) heterogeneous networks entirely based on LEDs with different specifications and applies non-orthogonal multiple access (NOMA) to it because of the narrow modulation bandwidth of LEDs. Moreover, a user-grouping scheme that is based on matching theory is proposed to improve the network achievable sum rate. Simulation results indicate that when each NOMA cluster contains 6 users, the proposed scheme has a 49.54% sum-rate enhancement compared with the traditional user-grouping scheme. As the number of users in each NOMA cluster increases, the proposed scheme performs better at the cost of computational complexity.
引用
收藏
页数:5
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