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Method for realizing scheduling control of network encoding perceived by transmission control protocol in wireless network

A transmission control protocol, wireless network technology, applied in wireless network protocols, transmission systems, wireless communications, etc., can solve the problems of reduced TCP performance, low link quality, low channel rate, etc., to improve utilization, high throughput, etc. , a wide range of effects

Active Publication Date: 2011-06-29
SPREADTRUM COMM (SHANGHAI) CO LTD
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AI Technical Summary

Problems solved by technology

This leads to frequent TCP spurious timeout events, which degrades TCP performance
Also, if when the TCP send rate is high, the link quality is low and the allocated channel rate is low, congestion will occur, reducing TCP performance

Method used

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  • Method for realizing scheduling control of network encoding perceived by transmission control protocol in wireless network
  • Method for realizing scheduling control of network encoding perceived by transmission control protocol in wireless network
  • Method for realizing scheduling control of network encoding perceived by transmission control protocol in wireless network

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Embodiment Construction

[0052] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.

[0053] see figure 1 As shown, the method for implementing transmission control protocol-aware network coding scheduling control in the wireless network, its main feature is that the method includes the following steps:

[0054] (1) Establish wireless network coding model, wireless channel model and transmission control protocol model in wireless network system; Establish wireless network coding model, comprise the following steps:

[0055] (a) Establish a local data packet buffer in the intermediate node of the wireless network system, store the data packet received by the intermediate node from the wireless network and the data packet generated by the intermediate node itself in the local data packet buffer And there is a data packet with a time interval; the local data packet buffer also performs the following processing operations:

[00...

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Abstract

The invention relates to a method for realizing the scheduling control of network encoding perceived by a transmission control protocol (TCP) in a wireless network, which comprises the following steps of: establishing a wireless network encoding model, a wireless channel model and a TCP model; assessing the channel quality of a wireless network system and the dynamic performance of the TCP; allocating a channel rate encoding mode in real time; encoding a group of TCP data packets selected from an intermediate node; and responding to a sender of the group of TCP data packets and forwarding the encoded data packets. By adopting the method for realizing the scheduling control of the network encoding perceived by the TCP in the wireless network, the change of channels can be known correctly, and an acknowledgement message is further sent to the sender of the data packets quickly and effectively, so network congestion is reduced, the transmission performance is improved, band width can be utilized effectively to allow the network to have higher throughput, the utilization rate of the band width is improved, wireless resources can be better utilized, the working performance is stable and reliable, and the application range is wide.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to the technical field of TCP transmission performance optimization in the wireless communication process, and specifically refers to a method for wireless network to realize transmission control protocol-aware network coding scheduling control. Background technique [0002] The traditional communication network transmits data through node forwarding, that is, nodes other than the sending node and receiving node of the data are only responsible for routing, without any processing of the data content, and the intermediate nodes play the role of forwarders. For a long time, people generally believed that there would be no benefit in processing the transmitted data on the intermediate nodes. However, the network coding theory proposed by RAhlswede et al. in 2000 completely overturned this traditional view. [0003] Network Coding (NC) has brought enormous benefits, especially in t...

Claims

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Application Information

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IPC IPC(8): H04W28/14H04W80/04H04L1/00
Inventor 于非张霞
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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