User Pairing and Power Allocation Strategies for 3D VLC-NOMA Systems

In this letter, we propose two novel, yet efficient, user pairing schemes for non-orthogonal multiple access (NOMA) in 3D visible light communication (VLC). Our analysis is carried out assuming different heights for the users’ location as well as two dynamic power allocation strategies. Performance gains are attained when compared the proposed schemes with NOMA without user pairing and with orthogonal multiple access (OMA). The effects of the key system parameters on the overall performance are investigated and insightful discussions are drawn.

[1]  Halim Yanikomeroglu,et al.  A Survey of Rate-optimal Power Domain NOMA Schemes for Enabling Technologies of Future Wireless Networks , 2019, ArXiv.

[2]  F. Richard Yu,et al.  Placement and Power Allocation for NOMA-UAV Networks , 2019, IEEE Wireless Communications Letters.

[3]  Bayan S. Sharif,et al.  On the Performance of Visible Light Communication Systems With Non-Orthogonal Multiple Access , 2016, IEEE Transactions on Wireless Communications.

[4]  Liang Yin,et al.  Performance Evaluation of Non-Orthogonal Multiple Access in Visible Light Communication , 2016, IEEE Transactions on Communications.

[5]  Huanting Chen,et al.  A New Noncontact Method for the Prediction of Both Internal Thermal Resistance and Junction Temperature of White Light-Emitting Diodes , 2012, IEEE Transactions on Power Electronics.

[6]  Murat Uysal,et al.  IEEE 802.15.7r1 Reference Channel Models for Visible Light Communications , 2017, IEEE Communications Magazine.

[7]  Pingzhi Fan,et al.  Impact of User Pairing on 5G Nonorthogonal Multiple-Access Downlink Transmissions , 2016, IEEE Transactions on Vehicular Technology.

[8]  Mauro Biagi,et al.  LAST: A Framework to Localize, Access, Schedule, and Transmit in Indoor VLC Systems , 2015, Journal of Lightwave Technology.

[9]  Shahid Mumtaz,et al.  Optimization of Non-Orthogonal Multiple Access Based Visible Light Communication Systems , 2019, IEEE Communications Letters.

[10]  H. Vincent Poor,et al.  Cooperative Non-Orthogonal Multiple Access in 5G Systems , 2015, IEEE Communications Letters.

[11]  Chen Gong,et al.  User Grouping and Power Allocation for NOMA Visible Light Communication Multi-Cell Networks , 2017, IEEE Communications Letters.

[12]  Qing Li,et al.  Strategy-Based Gain Ratio Power Allocation in Non-Orthogonal Multiple Access for Indoor Visible Light Communication Networks , 2019, IEEE Access.

[13]  George K. Karagiannidis,et al.  Non-Orthogonal Multiple Access for Visible Light Communications , 2015, IEEE Photonics Technology Letters.

[14]  Qing Li,et al.  Performance analysis of gain ratio power allocation strategies for non-orthogonal multiple access in indoor visible light communication networks , 2018, EURASIP J. Wirel. Commun. Netw..