On-line optimized wireless network data transmission method based on transmission data package length

A technology of wireless network data and transmission method, applied in the field of wireless network and communication, can solve the problems of unstable network transmission, high transmission error rate, small wireless network bandwidth, etc., to save data communication costs, improve network transmission efficiency, and improve The effect of stability

Inactive Publication Date: 2008-07-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1) The wireless network disconnection rate is high, the transmission error rate is high, and the network transmission is very unstable;
[0004] 2) The wireless network bandwidth is small, the average service rate of GPRS is generally 20kbit / s~40kbit / s, and the average service rate of CDMA1X is 80kbit / s~100kbit / s; and the transmission rate of the network fluctuates and changes greatly during the transmission process ;
[0005] 3) The network transmission delay is very large, etc.
However, these solutions all focus on the modification and improvement of the protocol, and do not involve the transmission optimization on the application layer.

Method used

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  • On-line optimized wireless network data transmission method based on transmission data package length
  • On-line optimized wireless network data transmission method based on transmission data package length
  • On-line optimized wireless network data transmission method based on transmission data package length

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Embodiment Construction

[0043] In the process of wireless network data transmission, the data to be transmitted usually needs to be split into data segments of a certain size, and each data segment needs to be added with a header of a fixed size (ie, a data packet header) to be encapsulated into a transmission data packet. The encapsulated data packets will be sent to the transport layer, and the transport layer will use TCP, UDP and other related protocols for transmission. The larger the transmission data packet, the higher the proportion of the payload, and the relatively reduced transmission overhead for the header; but at the same time, the proportion of the payload increases, because the wireless network has a high disconnection rate, and the network traffic loss due to packet loss will increase accordingly. Therefore, in order to reduce the network traffic consumption of data transmission, the optimal value of the transmission data packet should be selected for the length of the transmission d...

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Abstract

The invention discloses a wireless network transmission method which is based on transmission data packet length on line optimization. The data transmission method comprises calculating the length of an optimum transmission data packet which is suitable for current network to transfer according to the relationship among optimum value of the length of a transmission data packet of wireless network, expect value of transmission time of continuous on line of network and network transmission speed, approximately calculating the expect value of transmission time of continuous on line of network through arithmetical average algorithm, and estimating transmission speed through average network transmission speed of forwards continuous on-line transmission time. The transmission method dynamically adjusts the length of a transmission data packet in the wireless network transmission process on line through utilizing the above algorithm, thereby improving data transmission property under wireless network condition. The data transmission method which is provided by the invention can effectively reduces network transmission flow in data transmission process, which improves the efficiency of data transmission under wireless network environment, and lowers data transmission cost of wireless network.

Description

technical field [0001] The invention relates to the field of wireless network and communication, in particular to a data transmission method based on online dynamic optimization of transmission data packet length in a wireless network environment. Background technique [0002] Wireless network technology has good development prospects and application requirements, and it is developing rapidly in business fields such as long-distance communication and data transmission. Although the wireless network has the advantages of no wiring, good mobility, and convenient implementation compared with the wired network, the wireless network also has the following defects: [0003] 1) The wireless network disconnection rate is high, the transmission error rate is high, and the network transmission is very unstable; [0004] 2) The wireless network bandwidth is small, the average service rate of GPRS is generally 20kbit / s~40kbit / s, and the average service rate of CDMA1X is 80kbit / s~100kbi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04W40/12
Inventor 邵之江孔祥松
Owner ZHEJIANG UNIV
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