2018年7月3日
Artificial-noise-aided precoding design for multi-user visible light communication channels
2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings
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- 開始ページ
- 1
- 終了ページ
- 6
- DOI
- 10.1109/ICCW.2018.8403722
© 2018 IEEE. Secure transmission is becoming an essentially important aspect in visible light communication (VLC). In this paper, we investigate the designs of artificial noise (AN)-aided precoding to improve physical layer security in a multi-user single eavesdropper wiretap VLC channels. The AN-aided precoding is designed to solve the max-min fairness signal- to-interference-plus-noise ratio (SINR) problem among users in two different scenarios: unknown and known eavesdropper's channel state information (CSI) at the transmitter. In the former case, we adopt the traditional null- space AN scheme and then study the impact of the AN power on the fairness performance. In the case of known eavesdropper's CSI, the AN-aided precoding is designed in such a way that keeps the SINR of the eavesdropper below a predefined threshold. Numerical results show that in both cases, the design could significantly degrade the quality of the eavesdropper's channel, thus enhancing communication secrecy.
- リンク情報
- ID情報
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- DOI : 10.1109/ICCW.2018.8403722
- ISBN : 9781538643280
- SCOPUS ID : 85050283244