D2D (Device-to-device) communication method and device based on distributed storage

A technology of distributed storage and communication methods, applied in the field of D2D communication methods and devices based on distributed storage, can solve the problems that the multi-user and multi-data system is not general, and the four-dimensional matching problem cannot obtain the optimal solution, etc., to achieve The effect of reducing system transmission energy consumption, improving resource utilization, and improving success rate

Active Publication Date: 2016-12-14
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, the existing collaborative cooperation can only solve the two-dimensional matching problem under the condition of a single request data and fixed distributed parameters. For distributed storage of D2D communication request data distribution, request nodes, cache nodes and cellular user resource nodes four-dimensional The matching problem cannot be optimally solved, so it is not general for multi-user and multi-data systems

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  • D2D (Device-to-device) communication method and device based on distributed storage
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  • D2D (Device-to-device) communication method and device based on distributed storage

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] The embodiment of the present invention discloses a D2D communication method based on distributed storage, which will be described in detail below.

[0033] see figure 1 , figure 1 It is a basic flowchart of a D2D communication method based on distributed storage in an embodiment of the present invention, which is applied to a base station in the field of mobile communication, and includes the following steps:

[0034] In step 101, multiple nodes are ...

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Abstract

The embodiment of the invention discloses a D2D (Device-to-device) communication method and device based on distributed storage. The method comprises the steps of selecting multiple nodes as cache nodes according to preset conditions; obtaining a request of request nodes; when judging cellular subscriber resource nodes meet the preset communication conditions, dividing request data of each type into first preset quantity shares corresponding to the request data of each type and storing to the cache nodes; backing up the request nodes and backing up the cache nodes; employing a preset algorithm to obtain an optimal matching state among all request nodes, all cache nodes and all cellular subscriber resource nodes; and sending the optimal matching state to the request nodes so that the request nodes carry out D2D communication according to matched cache nodes and matched cellular subscriber resource nodes corresponding to the request nodes in the optimal matching state and by the request nodes and the matched cache nodes, and obtains the request data of the matched cache nodes.

Description

technical field [0001] The present invention relates to the field of mobile communication for large data storage and processing, in particular to a D2D communication method and device based on distributed storage. Background technique [0002] With the development of wireless communication technology, more and more people obtain information through the network, so people's requirements for the service level of wireless communication are also increasing. With the surge of data volume, it is necessary to store and process big data, but traditional storage methods are difficult to meet the requirements in terms of storage space, storage speed and security. Therefore, distributed storage provides technical support. [0003] Distributed storage is based on (network) coding technology. By dispersing and storing data on multiple independent physical storage devices, it effectively shares the storage load of the base station, reduces storage costs, and has good scalability and good...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/1097H04L67/566H04L67/568
Inventor 王莉宋梅满毅丁祎楠钏建斌
Owner BEIJING UNIV OF POSTS & TELECOMM
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