A Power Domain Sparse Code Multiple Access Scheme for Visible Light Communications

Lin, Bangjiang, Tang, Xuan and Ghassemlooy, Zabih (2020) A Power Domain Sparse Code Multiple Access Scheme for Visible Light Communications. IEEE Wireless Communications Letters, 9 (1). pp. 61-64. ISSN 2162-2337

Full text not available from this repository. (Request a copy)
Official URL: https://doi.org/10.1109/lwc.2019.2941853


We propose a non-orthogonal multiple access (NOMA) scheme known as power domain sparse code multiple access (PD-SCMA) for visible light communications (VLC), which uses both the power and code domains for multi users signal transmission. The signal model and the transceiver of PD-SCMA VLC are investigated. We show by experimental demonstration that, PD-SCMA is a promising multiple access solution for VLC systems offering higher achievable sum rate compared with other NOMA schemes. PD-SCMA with 2 power domain multiplexed layers offers twice the total data rate compared with SCMA at the cost of reduced transmission distance, which is not a problem for VLC systems as the transmission distance can be increased using higher power light sources, high-gain optical concentrators and advanced receivers.

Item Type: Article
Uncontrolled Keywords: Visible light communications (VLC), nonorthogonal multiple access (NOMA), power domain sparse code multiple access (PD-SCMA).
Subjects: G400 Computer Science
G500 Information Systems
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Elena Carlaw
Date Deposited: 24 Feb 2020 11:59
Last Modified: 24 Feb 2020 11:59
URI: http://nrl.northumbria.ac.uk/id/eprint/42185

Actions (login required)

View Item View Item


Downloads per month over past year

View more statistics