System and method for self-adaptive TCP data stream control on basis of wireless local area network AP

Abstract

The invention discloses a system and a method for self-adaptive TCP data stream control on the basis of a wireless local area network AP, which mainly solve the problem of an unfair average throughput of uplink and downlink transmission control protocol TCP data streams. The technical scheme is as follows: information carried by each transmission control protocol TCP data stream in the wireless local area network is recorded, and the average throughput of the wireless local area network, the quantity of the transmission control protocol TCP data streams, and the round-trip transmission time of each transmission control protocol TCP data stream are calculated by virtue of the information; a congestion window value used by each transmission control protocol TCP data stream is evaluated according to the calculation result, and data in the corresponding transmission control protocol TCP data streams is modified by using the evaluated result. The system and the method disclosed by the invention are capable of dynamically adjusting the average throughput of each transmission control protocol TCP data stream according to a wireless channel condition in the wireless local area network, thus ensuring the fairness of the average throughput of the uplink and downlink transmission control protocol TCP data streams; the system and the method can be used for the wireless local area network.

Description

technical field [0001] The present invention relates to the field of wireless communication networks, in particular to an adaptive TCP data flow control system and method based on a wireless local area network AP, which can be used in a wireless local area network, and dynamically control each channel in the wireless local area network according to the situation of the wireless channel in the wireless local area network. Average throughput of Transmission Control Protocol TCP streams. Background technique [0002] In recent years, wireless local area network has been widely used, statistics show that the main data in wireless local area network is the data using transmission control protocol TCP. Usually, the transmission control protocol TCP data flow of the data sending end in the wired network is called the downlink transmission control protocol TCP data flow; the transmission control protocol TCP data flow of the data sending end in the wireless local area network is cal...

AI Technical Summary

Problems solved by technology

The main disadvantage of this type of method is that it is difficult to guarantee the fairness of the average throughput of the uplink and downlink transmission control protocol TCP data streams in the wireless LAN. At the same time, it is necessary to modify the communication protocol and related hardware at the bottom of the wireless LAN access point AP, which is complicated to implement and high in cost.

The main disadvantage of this type of method is that the average throughput corresponding to each transmission control protocol TCP data flow cannot be dynamically adjusted according to the wireless channel conditions in the wireless local area network, and it is difficult to guarantee the average throughput of the uplink and downlink transmission control protocol TCP data flow in the wireless local area network. fairness

Images