Experimental Demonstration of User Allocation in a Subcarrier Multiplexing-Based Multiuser LiFi System

Merah, Mounir Mohammedi; Chassagne, Luc; Guan, Hongyu

doi:10.1109/ipcon.2018.8527235

Cited by 6 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Dynamic subcarrier allocation would help alleviate this escalating problem. Our previous work discussed in [41] speaks of this exact method. Results show that when defining a target data rate for each user, only a certain amount of receivers can be allocated while maintaining their data rate within 5% of their target.…”

Section: Synthesis Of the Overall Systemmentioning

confidence: 99%

Experimental Multi-User Visible Light Communication Attocell Using Multiband Carrierless Amplitude and Phase Modulation

2019

Self Cite

View full text Add to dashboard Cite

Multi-band carrierless amplitude and phase modulation and subcarrier multiplexing (SCM) are combined to produce a novel multi-users access scheme for visible light communications (VLC). To demonstrate this scheme, an experimental and realistic scenario is setup by using a low-cost commercial office white light-emitting diode (LED) downlight. Furthermore, subcarrier spacings are added to reduce the inter-channel interferences and the parameters of the pulse shaping filters are optimized. The distance between the transmitter and the receiver is fixed at 2.15 m. After the optimization, the experiment setup achieves a spectral efficiency of 5.08 b/s/Hz after subcarrier spacing and with very light post-processing. A total of 20 users can be provided with the multi-users access scheme with a sum data rate of 162.5 Mb/s. The receiving attocell is measured at 4.56 m 2. To the best of our knowledge, the resulting work presents the highest range, and one of the highest spectral efficiencies for a phosphorous white LED (ph-LED)-based VLC system, thanks to subcarrier spacing. With SCM, it is also the first ph-LED-based VLC multi-users system.

show abstract

Section: Synthesis Of the Overall Systemmentioning

confidence: 99%

Experimental Multi-User Visible Light Communication Attocell Using Multiband Carrierless Amplitude and Phase Modulation

2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…If installing several WiFi hotspots, it will cause the same frequency interference, which reduces the quality of service (QoS). Thus, VLC becomes a promising candidate for the indoor network, due to the vast unregulated available spectrum, low implementation cost, and immunity against interference compared to conventional WiFi systems [6][7][8]. Furthermore, the problem of spectrum shortage raises two issues, namely the disparity in the capacities of the two subnetworks as well as their coverage, since VLC has large capacity but limited cover.…”

Section: Introductionmentioning

confidence: 99%

Resource Allocation for Hybrid Visible Light Communications (VLC)-WiFi Networks

Yang

Zhang

et al. 2020

IEEE Access

View full text Add to dashboard Cite

Visible Light Communication (VLC) is becoming a promising technology of wireless communication, due to high data rate, low cost, and immunity to Radio Frequency (RF) interference. However, the VLC systems often suffer from service disruptions because of the limited coverage of light. Therefore, the heterogeneous networks of VLC and WiFi are proposed to achieve high-speed indoor communication and seamless coverage. This paper investigates an efficient heterogeneous network resource management algorithm, which is not only significant to integrate the current network resources but also has practical significance to improve the performance of heterogeneous networks. We establish a distributed joint resource management system model and propose two kinds of resource management allocation strategies to allocate bandwidth among the users with maximum fairness. The simulation results show the feasibility of the heterogeneous network and the effectiveness of the algorithm.

show abstract

Experimental Comparison of Multi-User Access Schemes with Multiband CAP

Merah

Guan

Chassagne

2019

2019 Global LIFI Congress (GLC)

View full text Add to dashboard Cite

Experimental Demonstration of User Allocation in a Subcarrier Multiplexing-Based Multiuser LiFi System

Abstract: We want to allocate the users to the optimal subcarriers in visible light communication. Allocation algorithms adapted from fiber-optic and implemented in an experimental setup attain a deviation from the bit rate target inferior to 5 percent for 11 users.

Cited by 6 publications

References 6 publications

Experimental Multi-User Visible Light Communication Attocell Using Multiband Carrierless Amplitude and Phase Modulation

Experimental Multi-User Visible Light Communication Attocell Using Multiband Carrierless Amplitude and Phase Modulation

Resource Allocation for Hybrid Visible Light Communications (VLC)-WiFi Networks

Experimental Comparison of Multi-User Access Schemes with Multiband CAP

Contact Info

Product

Resources

About