Method for self similar cluster packet of large file service light transmission

A self-similar, business optical technology, applied in transmission systems, digital transmission systems, electrical components, etc.

Inactive Publication Date: 2006-06-14
PEKING UNIV
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  • Method for self similar cluster packet of large file service light transmission
  • Method for self similar cluster packet of large file service light transmission
  • Method for self similar cluster packet of large file service light transmission

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Embodiment Construction

[0046] In order to describe the content of the present invention more clearly, the present invention is further described below through specific examples, but this does not constitute a limitation to the present invention.

[0047] refer to Figure 6 , the specific steps of this embodiment are as follows:

[0048] 1) Determining the business source: It is divided into two parts: obtaining business service level and mathematical model parameters and obtaining business self-similar features. In this embodiment, the packet length of the service source obeys the self-similar heavy-tailed distribution, and the packet arrival time interval obeys the negative exponential distribution.

[0049] Wherein, the position parameter k=60,000,000 of the self-similar heavy-tailed distribution; shape parameter α=1.4; the mean value mean of the time interval obeying the negative exponential distribution is 7ms (the mean value of the negative exponential distribution is used as the time threshol...

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Abstract

This invention relates to a method for packing large file service light transmitted self-similar cluster packets characterizing in taking if the time interval for arriving network edge nodes by data packets and/or packet length obey the self-similar distribution as the judgment basis to divide the accumulated data packets into CLUSTER and NON-CLUSTER packets and put them in different buffer storages to be sent out. This invention fully considers the accumulation method when services arrive at the network edge nodes to obey three kinds of self-similar math models and fully utilizes the character of the transmission of large files of flow media, HDTV and GRID network application to accumulate a large service flow accessing a pair of same entrance and exit nodes in a short period a CLUSTER and an independent data packet a CLUSTER and uses time threshold to meet the need of service to transmission delay to reduce the reconfiguration rate of network resources.

Description

technical field [0001] The invention belongs to the field of electronic communication, and relates to a data transmission method, especially a method suitable for transmitting large file services such as streaming media, high-definition digital television (HDTV), interactive multimedia, and Grid application grids in the field of high-speed optical communication Self-similar clustering (CLUSTER) grouping method. Background technique [0002] Since 1999, the volume of data transmission traffic on the Internet has exceeded the volume of voice traffic transmitted. Now data transmission is increasing at a rate of 100% per year while the growth rate of voice services is less than 10% per year. Therefore, the business characteristics of network transmission have changed from voice-based to data-based, and the transmission load reflects the self-similarity of burst packets at any time scale. Based on the above facts, in-depth research and understanding of the characteristics of se...

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Application Information

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IPC IPC(8): H04J14/02H04L12/00H04L47/43
Inventor 李维黄安鹏谢麟振李正斌徐安士
Owner PEKING UNIV
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