Low energy consumption-based data cache method in mobile cloud computing environment

A computing environment and data caching technology, applied to electrical components, transmission systems, etc., can solve the problem of data caching without reading and writing energy consumption of mobile terminals, and achieve the effect of optimizing system energy consumption

Inactive Publication Date: 2014-10-15
TONGJI UNIV
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Problems solved by technology

However, in these algorithms, the data cache is not considered in com...

Method used

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  • Low energy consumption-based data cache method in mobile cloud computing environment

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Embodiment

[0029] Such as figure 1 As shown, a data caching method based on low energy consumption in a mobile cloud computing environment. In this method, a set of data needs to be defined as the source data of the cloud. The attributes of the data include number (id), last accessed time (last_time ), the time of the penultimate visit (sec_time), the time interval from the last visit to the present page (recency), the time interval between the last two visits to a page (irr), and the frequency of data visits (frequency) , The size of the data (size); the size of the data stored in the cache (S_size). The concrete implementation steps of this method are as follows:

[0030] Step 1: Obtain the hit rate of each algorithm in the policy pool within the scope of its access locality. By analyzing the advantages and disadvantages of each algorithm in the policy pool, it is possible to summarize the situation of each algorithm (that is, the access locality in Which range) has the highest hit r...

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Abstract

The invention relates to a low energy consumption-based data cache method in a mobile cloud computing environment. The method comprises the following steps: step 1, the hit rate of each algorithm within an access locality range in a strategy pool is acquired; step 2, parameters of a mobile client and the access locality range of the application are read; step 3, in the case when the mobile client accesses the network, according to features of the access data, the used application is judged, and according to the access locality range of the application, a replacement algorithm with the highest hit rate within the access locality range in the strategy pool is selected; step 4, the mobile client firstly carries out query in the local cache, attributes of data in the cache is directly updated if cache hits, and the third step is carried out, and if cache does not hit, data are requested from the cloud, the attributes of data in the cache is updated according to the selected replacement algorithm, and the third step is carried out. Compared with the prior art, on the premise that the system performance demands are met, energy consumption can be effectively saved.

Description

technical field [0001] The invention relates to a data cache method, in particular to a data cache method based on low energy consumption in a mobile cloud computing environment. Background technique [0002] Mobile cloud computing is a combination of mobile computing, mobile network and cloud computing. Mobile cloud computing technology is to share resources and exchange data through computers or other intelligent terminal devices, and any intelligent terminal device can obtain services from the wireless network environment. "Cloud" is like a group of servers in the network, consisting of countless data centers. After the mobile smart terminal is connected to the "cloud", the amount of data transmission will be relatively large, but the bandwidth of the wireless network and the bandwidth between the data centers are limited, and the network delay in the process of data transmission is very large, which affects the performance of data transmission . [0003] Even though t...

Claims

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Application Information

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IPC IPC(8): H04L29/08
Inventor 刘伟曾国荪王伟
Owner TONGJI UNIV
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