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Heterogeneous network packet loss differentiating method based on fuzzy comprehensive judgment

A fuzzy comprehensive evaluation, heterogeneous network technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as difficulty in making clear judgments, and achieve good results

Inactive Publication Date: 2012-05-30
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] According to the above research results, for complex network status, it is often difficult to make a clear judgment using a simple and common distinction method

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  • Heterogeneous network packet loss differentiating method based on fuzzy comprehensive judgment
  • Heterogeneous network packet loss differentiating method based on fuzzy comprehensive judgment
  • Heterogeneous network packet loss differentiating method based on fuzzy comprehensive judgment

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Experimental program
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Embodiment Construction

[0040]As mentioned above, for a complex heterogeneous network environment, it is often difficult to make a correct judgment by using a single parameter-based discrimination method. For this reason, the present inventor further analyzes on the basis of existing research and thinks: for the heterogeneous network environment, it is necessary to influence the network such as the average packet loss rate and the ROD (one-way transmission delay) of the (Packet Pair) detection frame The specific factors of service quality dynamically construct different weight distributions according to the network conditions, so as to accurately distinguish the causes of packet loss in heterogeneous network environments. In the corresponding analysis and judgment process, it is necessary to comprehensively consider the influence of various factors, and use fuzzy transformation for a certain purpose, so as to make a comprehensive judgment on the final result. Therefore, the above-mentioned problem of...

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Abstract

The invention provides a heterogeneous network packet loss differentiating method based on fuzzy comprehensive judgment. The method comprises the following steps: firstly, using unidirectional transmission time delay and average packet loss rate of a packet pair detection frame as factor set parameters of the fuzzy comprehensive judgment; during packet loss, working out independent judgment by using the unidirectional transmission time delay and the average packet loss rate respectively to acquire judgment values of the two factor set parameters on the current network condition; calculating dynamic weight distribution functions related with the unidirectional transmission time delay and the average packet loss rate respectively, and carrying out normalized processing for the two dynamic weight distribution functions to determine a relative weight value of the unidirectional transmission time delay and the average packet loss rate; and carrying out fuzzy transformation for the relativeweight value to acquire comprehensive judgment so as to differentiate packet loss reasons. The related experiment shows that the method has better implementation effect compared with the prior TCP versions and the prior differentiating method.

Description

technical field [0001] The present invention relates to a method for distinguishing the causes of data packet loss in a heterogeneous network environment, in particular to a method for distinguishing the causes of data packet loss based on a fuzzy comprehensive evaluation model in a heterogeneous network environment where wireless / wired integration A method for effectively distinguishing two causes of data packet loss (bit error packet loss and congestion packet loss) belongs to the technical field of network quality of service (QoS). Background technique [0002] With the continuous development of communication technology, there is a trend of coexistence of various types of communication networks, such as figure 1 As shown, various wireless network systems such as wireless wide area network (such as GPRS, UMTS, etc.), wireless local area network (such as IEEE802.11), satellite communication network, and Bluetooth network are gradually replacing traditional wired networks as...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/26
Inventor 苏放甄雁翔李勇范英磊向慧侃
Owner BEIJING UNIV OF POSTS & TELECOMM