Visible light communication and WiFi heterogeneous fusion network and resource scheduling method

Abstract

The embodiment of the invention provides a visible light communication and WiFi heterogeneous fusion network and a resource scheduling method, and the method comprises the steps: calculating the instantaneous transmission rate of each to-be-scheduled user in a current scheduling time slot according to the channel quality information of each to-be-scheduled user; and calculating the scheduling priority of each to-be-scheduled user in each resource block according to the instantaneous transmission rate and the packet delay of each to-be-scheduled user in the current scheduling time slot; and allocating a corresponding resource block to each to-be-scheduled user based on the scheduling priority of each to-be-scheduled user in each resource block. According to the resource scheduling method provided by the embodiment of the invention, when the scheduling priority of the user is calculated, the packet delay of the user in the current time slot is considered, the short-term fairness of the user is considered, the congestion risk of the whole heterogeneous network system is reduced, and the tension of infinite frequency spectrum resources is relieved.

Description

technical field [0001] The present invention relates to the communication field, and more specifically, to a visible light communication and WiFi heterogeneous fusion network and a resource scheduling method. Background technique [0002] In recent years, the increasing demand for high-speed and license-free spectrum applications has prompted many researchers to study visible light communication (VLC, visible light communication) as a promising indoor communication technology. As we all know, due to the limited spectrum resources in wireless networks, radio frequency communication is increasingly restricted. As a solution, VLC has been introduced into indoor environments to overcome the limitation of RF radio frequency communication and provide users with better services. [0003] VLC is a communication system that uses a light emitting diode (LED, Light Emitting Diode) as a transmitter to transmit light and information signals to users, and the LED has high energy efficien...

AI Technical Summary

Problems solved by technology

[0004] As a license-free and secure system, VLC is known for its ability to resist radio frequency interference and high bandwidth potential, but on the other hand, VLC also has communication blocking problems. Unlike radio frequency networks, VLC is only between the transmitting end and the receiving end. will only work properly if the line of sight component of the

A single network is not enough to meet the network needs of many users

Images