Journal
IEEE COMMUNICATIONS LETTERS
Volume 21, Issue 4, Pages 777-780Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2016.2642921
Keywords
Visible light communication (VLC); non-orthogonal multiple access (NOMA); multi-cell networks
Categories
Funding
- National Key Basic Research Program of China [2013CB329201]
- National Natural Science Foundation of China [61631018, 61501420]
- CAS [QYZDY-SSW-JSC003]
- Key Project in Science and Technology of Guangdong Province [2014B010119001]
- Shenzhen Peacock Plan [1108170036003286]
- Fundamental Research Funds for the Central Universities
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To design an efficient multiple access scheme for visible light communication (VLC) multi-cell networks, this letter leverages the non-orthogonal multiple access (NOMA), which has received significant attention in the 5th generation wireless communication. A user grouping based on user locations is proposed to reduce interference for VLC multi-cell networks. With the residual interference from the successive interference cancellation in NOMA taken into account, we optimize the power allocation within each cell to improve the achievable user rate under user quality of service constraint. The performance of the proposed approaches is evaluated by the numerical results.
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