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https://hdl.handle.net/10356/105590
Title: | Flexible-rate SIC-free NOMA for downlink VLC based on constellation partitioning coding | Authors: | Chen, Chen Zhong, Wen-De Yang, Helin Du, Pengfei Yang, Yanbing |
Keywords: | Constellation Partitioning Coding Visible Light Communication Engineering::Electrical and electronic engineering |
Issue Date: | 2019 | Source: | Chen, C., Zhong, W.-D., Yang, H., Du, P., & Yang, Y. (2019). Flexible-rate SIC-free NOMA for downlink VLC based on constellation partitioning coding. IEEE Wireless Communications Letters, 8(2), 568-571. doi:10.1109/LWC.2018.2879924 | Series/Report no.: | IEEE Wireless Communications Letters | Abstract: | Visible light communication (VLC) systems utilizing conventional superposition coding/successive interference cancellation (SPC/SIC)-based non-orthogonal multiple access (NOMA) suffer from the error propagation effect due to imperfect SIC. In this letter, we propose a flexible-rate SIC-free NOMA technique for downlink VLC systems, based on constellation partitioning coding (CPC) and uneven constellation demapping (UCD). By using CPC/UCD, SIC is not required and hence error propagation can be eliminated in NOMA-based VLC systems. Moreover, by selecting a proper bit allocation scheme, flexible-rate multiple access can be supported in the VLC system applying CPC/UCD based NOMA. Proof-of-concept two-user VLC experiments verify that, compared with conventional SPC/SIC-based NOMA, the bit error rate performance of the near user can be greatly improved by using CPC/UCD-based NOMA, and hence the effective power allocation ratio range can be substantially extended. | URI: | https://hdl.handle.net/10356/105590 http://hdl.handle.net/10220/50156 |
ISSN: | 2162-2337 | DOI: | 10.1109/LWC.2018.2879924 | Rights: | © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/LWC.2018.2879924 | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | EEE Journal Articles |
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Flexible-Rate SIC-Free NOMA for Downlink VLC Based on Constellation Partitioning Coding.pdf | 1.93 MB | Adobe PDF | ![]() View/Open |
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