User-Centric Visible Light Communications aided Network
Southampton Wireless Visible Light Communications (SW-VLC) team has been focusing on the networking aspect of VLC research, with worldwide collaborations spanning from both academia and industry. This project will be conducted by the PI, one post-doctoral RA and one PhD student.
| Conventional Design
When adopting the conventional design principle, one may partition the room into four square-shaped cells having 16 APs per cell. However, constructing conventional cells by restricting users within a pre-defined boundary will lead to tele-traffic overload in crowded cells and to underload in cells only supporting a few users, resulting in an unbalanced loading problem. A typical example can be seen as in the left figure having a highly unbalanced user-loading, where a cluster of users are in the `northern' half of the room, while only few users are in the `south-west' corner.
| User-centric Design
Distinctively, by taking into account the users' geo-locations, the novel user-centric design flow is based on grouping the users together and then associating the APs with them. Hence, the resultant cells are of amorphous shape. It is easy to see that the amorphous cells are capable of breaking the fixed boundaries of conventional design and of avoiding the unbalanced loading problem, since more APs are associated with the crowded areas, whilst assigning less APs to the areas supporting only a few users.
| Moving Amorphous Cells Animation
As further advances, amorphous cells are capable of forming user-centric `breathing' cells evolving upon users' movement, where new APs may join in the cell formation with the resigning of old APs. The left figure animation shows how the amorphous cells are adapted corresponding to the movement of a particular user, where both the amorphous cell shape and the total number of amorphous cells are evolving.
- Simeng, Feng; Li, Xuan; Zhang, Rong; Ming Jiang and Hanzo, Lajos (2016) Hybrid Positioning for the Amorphous-Cell Assisted User-Centric Visible Light Downlink. IEEE Photonics Journal (submitted)
- Li, Xuan; Yongkai Huo; Zhang, Rong and Hanzo, Lajos (2016) User-Centric Visible Light Communications for Energy-Efficient Scalable Video Streaming. [in special issue: Green Communications and Networking Series 3 ] IEEE Journal on Selected Areas in Communications (submitted)
- Zhang, Rong; Claussen, Holger; Haas, Harald and Hanzo, Lajos (2016) Energy Efficient Visible Light Communications Relying on Amorphous Cells. [in special issue: Energy-Efficient Techniques for 5G Wireless Communication Systems] IEEE Journal on Selected Areas in Communications
- Zhang, Rong; Wang, Jiaheng; Wang, Zhaocheng; Xu, Zhengyuan; Zhao, Chunming and Hanzo, Lajos (2015) Visible light communications in heterogeneous networks: pave the way for user-centric design. [in special issue: Visible Light Communications] IEEE Wireless Communications
- Li, Xuan; Zhang, Rong; Wang, Jiaheng; Xu, Zhengyuan and Hanzo, Lajos (2015) Users First: User-Centric Cluster Formation for Interference Mitigation in Visible Light Networks. IEEE Transactions on Wireless Communications
- Li, Xuan; Jin, Fan; Zhang, Rong and Hanzo, Lajos (2015) Cooperative load balancing in hybrid visible light communications and WiFi. IEEE Transactions on Communications
- Jiang, Junyi; Zhang, Rong and Hanzo, Lajos (2015) Analysis and design of three-stage concatenated color-shift keying. IEEE Transactions on Vehicular Technology
- Li, Baolong; Wang, Jiaheng; Zhang, Rong; Shen, Hong; Zhao, Chunming and Hanzo, Lajos (2015) Multiuser MISO transceiver design for indoor visible light communication with Per-LED optical power constraints. IEEE Photonics Journal
- Jin, Fan; Zhang, Rong and Hanzo, Lajos (2014) Resource allocation under delay guarantee constraints for heterogeneous visible light and RF femtocells. IEEE Transactions on Wireless Communications
Type: Normal Research Project
Research Group: Southampton Wireless Group
Dates: ? to ?
- Bell Labs
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