Traffic scheduling method and system of terminal access network

Abstract

The embodiment of the invention provides a traffic scheduling method and system of a terminal access network, the method and system are suitable for a network controller. The method comprises the following steps: acquiring the first overstock information of an input queue and the second overstock information of an output queue; acquiring the extra cost overstock information of a previously constructed first virtual queue at a target moment, and acquiring the overtime overstock information of a previously constructed second virtual queue at the target moment; solving a traffic scheduling strategy through the adoption of the previously constructed Lyapunov drift penalty function based on the first overstock information, the second overstock information, the extra cost overstock information and the overtime overstock information; transmitting a data packet which is cached in the input queue and meets the data transfer amount to the output queue through a to be scheduled channel. Through the adoption of the embodiment of the invention, the stability of the traffic scheduling system is guaranteed when a hybrid communication network is used as the access network, and the data transmission cost is lowered.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a traffic scheduling method and system for a terminal access network. Background technique [0002] With the development of the smart grid, terminals only connected to the dedicated communication network can no longer meet the communication needs of the smart grid, resulting in the mixed use of the dedicated communication network and the public communication network, for example: mixing the power line communication network, public wireless network and public The wired network is used to transmit the service data sent by the terminal, but due to the differences of the network in the hybrid communication network and the lack of a cost-optimized traffic scheduling mechanism corresponding to the hybrid access network, the problem of superimposed transmission costs is caused. However, the cost-optimized traffic scheduling mechanism in the existing public wireless networ...

AI Technical Summary

Problems solved by technology

[0002] With the development of the smart grid, terminals only connected to the dedicated communication network can no longer meet the communication needs of the smart grid, resulting in the mixed use of the dedicated communication network and the public communication network, for example: mixing the power line communication network, public wireless network and public The wired network is used to transmit the business data sent by the terminal, but due to the differences of the network in the hybrid communication network and the lack of a cost-optimized traffic scheduling mechanism corresponding to the hybrid access network, the problem of superimposed transmission costs

However, the cost-optimized traffic scheduling mechanism in the existing public wireless network and public wired network is not suitable for hybrid communication networks, which makes the transmission cost of hybrid access network technology relatively high.

[0003] Among them, the network differences in the hybrid communication network are reflected in: the power line communication network is a dedicated communication network, with low transmission rate and large transmission delay, but low transmission cost; public wireless network has high transmission rate and small transmission delay; The transmission rate of the public wired network is higher than that of the public wireless network, and the transmission delay is relatively small; however, the public wired network and the public wireless network need to pay corresponding lease fees to the telecommunications company, and the transmission cost is relatively high

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