| Title | Secrecy Rate Analysis for Visible Light Communications Using Spatial Modulation |
| Publication Type | Conference Paper |
| Year of Publication | 2019 |
| Authors | Ge, Hong, Dai, Jianxin, Huang, Bo, Wang, Jin-Yuan |
| Conference Name | 2019 IEEE 21st International Conference on High Performance Computing and Communications; IEEE 17th International Conference on Smart City; IEEE 5th International Conference on Data Science and Systems (HPCC/SmartCity/DSS) |
| Date Published | aug |
| Keywords | active transmitter, CAS scheme, channel adaptive selection scheme, derived secrecy rate bounds, dimmable average optical intensity constraints, eavesdropper, free-space optical communication, indoor communication, indoor VLC system, Information theory, light emitting diodes, lower bounds, Metrics, modulation, multiple transmitters, optical modulation, optical receivers, optical transmitters, physical layer security, pubcrawl, receiver, Resiliency, Scalability, secrecy performance, secrecy rate, secrecy rate analysis, SM based VLC, spatial modulation, spatial modulation scheme, System performance, telecommunication security, Telecommunications, uniform selection, upper bounds, US scheme, visible light communication, visible light communications, Visual Light Communications Security |
| Abstract | This paper mainly investigates the physical layer security for visible light communication (VLC) based on spatial modulation (SM). The indoor VLC system includes multiple transmitters, a legitimate receiver and an eavesdropper. In the system, we consider two constraints of the input signal: non-negative and dimmable average optical intensity constraints. According to the principle of information theory and the spatial modulation scheme of uniform selection (US), the upper and the lower bounds on the secrecy rate for SM based VLC are derived, respectively. Numerical results show that the performance gap between the upper and lower bounds of the secrecy rate is small and relatively close, which indicates that the derived secrecy rate bounds can be used to evaluate the system performance. Moreover, when the number of transmitters is set to be one, the spatial modulation disappears, and the secrecy rate bounds in this paper are consistent with the existing results. To further improve the secrecy performance, a channel adaptive selection (CAS) scheme is proposed for selecting the active transmitter. Numerical result indicates that the CAS scheme has better performance than the US scheme. |
| DOI | 10.1109/HPCC/SmartCity/DSS.2019.00174 |
| Citation Key | ge_secrecy_2019 |
Secrecy Rate Analysis for Visible Light Communications Using Spatial Modulation