A traffic scheduling method and system for a terminal access network

Abstract

Embodiments of the present invention provide a traffic scheduling method and system for a terminal access network, which are suitable for network controllers. The method includes: obtaining the first backlog information of the input queue and the second backlog information of the output queue; obtaining the pre-built first backlog information The excess cost backlog information of a virtual queue at the target time, and obtain the overtime backlog information of the pre-built second virtual queue at the target time; based on the first backlog information, the second backlog information, the excess cost backlog information and the overtime backlog information, using The pre-built Lyapunov drift plus penalty function solves the traffic scheduling strategy; based on the traffic scheduling strategy, the data packets cached in the input queue that meet the data transfer volume are transmitted to the output queue through the channel to be called. By applying the embodiments of the present invention, when using a hybrid communication network as an access network, the stability of the traffic dispatching system is ensured, and the data transmission cost is reduced.

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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