TY - JOUR
T1 - 3-D Hybrid VLC-RF Indoor IoT Systems with Light Energy Harvesting
AU - Pan, Gaofeng
AU - Lei, Hongjiang
AU - Ding, Zhiguo
AU - Ni, Qiang
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2019/9
Y1 - 2019/9
N2 - In this paper, a 3-D hybrid visible light communication (VLC)-radio frequency (RF) indoor Internet of Things system with spatially random terminals with one photodiode (e.g., indoor sensors: temperature sensors, humidity sensors, and indoor air quality sensors) is considered. Specifically, homogeneous Poisson point process is adopted to model to the distribution of the terminals, which means that the number of the terminals obeys Poisson distribution, and the positions of the terminals are uniformly distributed. VLC and RF communications are employed over downlink and uplink, respectively. Meanwhile, the terminals are designed to harvest the energy from the light emitted by the light-emitting diode over the downlink, which is used for the transmissions over the uplink. The light energy harvesting model is considered after introducing the line of sight propagation model for VLC. Then, the outage performance has been studied for the VLC downlink and non-orthogonal multiple access schemes over the RF uplink, respectively, by using stochastic geometry theory, while considering the randomness of the number of the terminals, and all terminals are spatially and randomly distributed in the 3-D room and all RF uplinks follow Rician fading. Finally, the approximated analytical expressions for the outage probability are derived and verified through Monte Carlo simulations.
AB - In this paper, a 3-D hybrid visible light communication (VLC)-radio frequency (RF) indoor Internet of Things system with spatially random terminals with one photodiode (e.g., indoor sensors: temperature sensors, humidity sensors, and indoor air quality sensors) is considered. Specifically, homogeneous Poisson point process is adopted to model to the distribution of the terminals, which means that the number of the terminals obeys Poisson distribution, and the positions of the terminals are uniformly distributed. VLC and RF communications are employed over downlink and uplink, respectively. Meanwhile, the terminals are designed to harvest the energy from the light emitted by the light-emitting diode over the downlink, which is used for the transmissions over the uplink. The light energy harvesting model is considered after introducing the line of sight propagation model for VLC. Then, the outage performance has been studied for the VLC downlink and non-orthogonal multiple access schemes over the RF uplink, respectively, by using stochastic geometry theory, while considering the randomness of the number of the terminals, and all terminals are spatially and randomly distributed in the 3-D room and all RF uplinks follow Rician fading. Finally, the approximated analytical expressions for the outage probability are derived and verified through Monte Carlo simulations.
KW - Light energy harvesting
KW - Rician fading
KW - non-orthogonal multiple access
KW - outage probability
KW - radio frequency
KW - stochastic geometry
KW - visible light communication
UR - http://www.scopus.com/inward/record.url?scp=85071352056&partnerID=8YFLogxK
U2 - 10.1109/TGCN.2019.2908839
DO - 10.1109/TGCN.2019.2908839
M3 - Article
AN - SCOPUS:85071352056
SN - 2473-2400
VL - 3
SP - 853
EP - 865
JO - IEEE Transactions on Green Communications and Networking
JF - IEEE Transactions on Green Communications and Networking
IS - 3
M1 - 8680694
ER -