Information Center Network Cache Deployment Method Based on Cache Node Status and Location

An information center network and cache node technology, applied in the field of communication, can solve the problem of not considering whether the cache node status is suitable for continuing to cache information, etc., to achieve the effect of reducing request length, reducing network delay, and improving hit rate

Active Publication Date: 2022-01-14
HARBIN ENG UNIV
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Problems solved by technology

Typical representatives of implicit cooperative caching are LCD, MCD, ProbCache, etc. These three caching strategies are all to make the cache closer to consumers on the link, thereby reducing network delays, but they do not consider each caching node. Whether the state is suitable for continuing to cache information

Method used

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  • Information Center Network Cache Deployment Method Based on Cache Node Status and Location
  • Information Center Network Cache Deployment Method Based on Cache Node Status and Location
  • Information Center Network Cache Deployment Method Based on Cache Node Status and Location

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Embodiment Construction

[0048] Further describe the present invention below in conjunction with accompanying drawing:

[0049] Such as figure 1 , an information center network cache deployment method based on cache node status and location, including the following steps:

[0050] Step (1): Calculate the final state value;

[0051] The cache node status value is an important indicator to evaluate whether the cache nodes in the information center network are suitable for caching. The less the cache content is, the more suitable it is for caching, and the closer it is to users, the more suitable it is for caching. At present, the status value of each cache node is determined by three factors, but for cache nodes in different network environments, the proportion of each factor should be different, so it is calculated in a weighted manner.

[0052] The final state value Value:

[0053] Value=α*V k +β*V hop +γ*V hitk ,α,β,γ∈N;

[0054] In the above formula, V k is the state value obtained according t...

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Abstract

The invention belongs to the field of communication technology, and discloses an information center network cache deployment method based on cache node status and location, including the following steps: step (1): calculate the finally obtained status value; step (2): calculate cache rate; step ( 3): Create a data packet status value: add an additional field in the data packet and record it as the data packet status value; Step (4): Establish a status record table: add a status record table to each cache node, and the status record table contains The data name and state record table state value in the interest packet; step (5): select a cache node, update the data packet state value, and modify the state record table. The invention improves the hit rate of the cache, reduces the network delay, and reduces the average request length of the user; comprehensively considers the state and position of the cache node, and obtains a better cache location with a very small communication cost; it does not need to be in the data packet Adding too many fields will not cause bloated network packets.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to an information center network cache deployment method based on cache node states and positions. Background technique [0002] The cache function is the advantage of the information center network. The efficiency of the cache directly determines the overall performance of the information center network, and the deployment strategy of the cache is the top priority of the cache strategy. In recent years, scholars from various countries have focused more on the performance improvement brought by the cache deployment strategy to the information center network. For the cache deployment strategy, focus should be on efficient network utilization and high data availability. From the point of view of P2P system and CDN technology, the deployment of cache at the edge of the network is of great help to improve the cache hit rate, but the information center network supports...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/568H04L67/5682H04L67/52
CPCH04L67/5682H04L67/52H04L67/568
Inventor 苘大鹏杨武王巍玄世昌吕继光王垚
Owner HARBIN ENG UNIV
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