In order to solve the problem of joint resource management algorithm of visible light communication (VLC) and WiFi heterogeneous network, this paper studies different resource scheduling algorithms, and finally chooses improved proportional fair (PF) algorithm to improve the system in different regions of the user access to resources, and optimize the utilization of resources. The simulation results show that the optimized scheduling algorithm can improve the system throughput, fairness and access delay probability (ADP).
KEYWORDS: Telecommunications, Optical fibers, Extremely high frequency, Wireless communications, Radio over Fiber, Eye, Networks, Signal attenuation, Optical networks, Modulation
In order to meet the high bandwidth requirements of next generation access network, this paper combine the advantages of radio over fiber (RoF) and wavelength division multiplexing passive optical network (WDM-PON), and propose the RoF-WDM-PON system architecture. MZM modulation technology is adopted to realize the signal transmission from the center station to the base station, which can meet the demand of high bandwidth and realize the low loss transmission of 20km in the meantime. Simulation results verify the effectiveness and reliability of the proposed scheme.
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