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D2D group multi-target cache method based on social content and D2D group multi-target cache system based on social content and D2D group multi-target cache device based on social content

A multi-objective and caching technology, applied in the field of D2D group multi-objective caching based on social content, can solve the problems of not being able to maximize the integration and utilization of data resources of the D2D system, ignoring user social factors, etc.

Active Publication Date: 2018-10-02
FOSHAN SHUNDE SUN YAT SEN UNIV RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing D2D caching schemes focus on the user's preference requirements for data packets, such as how to make the user obtain more preference packets, but ignore the social factors of the user itself, especially the social cost of communication between users, even if It is possible to obtain the preference package but still need to pay a large social cost, that is, it is impossible to maximize the integration and utilization of data resources of the D2D system

Method used

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  • D2D group multi-target cache method based on social content and D2D group multi-target cache system based on social content and D2D group multi-target cache device based on social content
  • D2D group multi-target cache method based on social content and D2D group multi-target cache system based on social content and D2D group multi-target cache device based on social content
  • D2D group multi-target cache method based on social content and D2D group multi-target cache system based on social content and D2D group multi-target cache device based on social content

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] refer to figure 1 and figure 2 , a D2D grouping multi-object caching method based on social content, comprising the following steps:

[0083] S1. Determine the HUE in the D2D system through the eNB and initialize parameters;

[0084] S2. Calculate the Jaccard similarity jac between HUE and other VUEs u and Jaccard distance d u , respectively expressed as: d u = 1-jac u ; OK d u The set of VUE that is not 0 is BUE;

[0085] Among them, K is the number of social attributes of HUE;

[0086] S UK for BUE i Whether it has the judgment amount of the kth social attribute of HUE, 0UK <1;

[0087] BUE is a set of VUEs with at least one same social attribute with HUE, expressed as BUE={BUE i |i=1,2,...,I};

[0088] S3. Calculate the number Q of cached data packets, expressed as:

[0089]

[0090]

[0091] Among them, the first item of the above formula is the number of data packets obtained based on the wireless link quality, user satisfaction with HUE and B...

Embodiment 2

[0117] D2D group multi-object caching system based on social content, including:

[0118] The initial module is used to determine the HUE in the D2D system and initialize parameters through the eNB;

[0119] BUE determination module, used to calculate the Jaccard similarity jac between HUE and other VUEs u and Jaccard distance d u , respectively expressed as: d u = 1-jac u ; OK d u The set of VUE that is not 0 is BUE;

[0120] The data packet calculation module is used to calculate the number Q of cached data packets, expressed as:

[0121]

[0122]

[0123] Among them, the first item of the above formula is the number of data packets obtained based on the wireless link quality, user satisfaction with HUE and BUE, and the minimum social cost, and the second item is when the HUE cache package is the same as the HUE preference package The number of data packets obtained;

[0124] The transmission module is used to transmit the buffered data packets to other VUEs b...

Embodiment 3

[0128] The D2D packet multi-object caching device based on social content includes: a processor and a memory for storing processor-executable instructions; the processor reads the executable instructions and performs the following steps:

[0129] Determine the HUE in the D2D system through the eNB and initialize the parameters;

[0130] Calculate the Jaccard similarity jac between HUE and other VUEs u and Jaccard distance d u , respectively expressed as: d u = 1-jac u ; OK d u The VUE set that is not 0 is BUE;

[0131] Calculate the number of cached data packets Q, expressed as:

[0132]

[0133]

[0134] Among them, the first item of the above formula is the number of data packets obtained based on the wireless link quality, user satisfaction with HUE and BUE, and the minimum social cost, and the second item is when the HUE cache package is the same as the HUE preference package The number of data packets obtained;

[0135] The buffered data packets are transmi...

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Abstract

The invention discloses a D2D group multi-target cache method based on social content and a D2D group multi-target cache system based on the social content and a D2D group multi-target cache device based on the social content. The number of the cached data packets under the optimal condition can be obtained based on the D2D cache strategy. The cache strategy is established based on the wireless link quality, the preference degree of the user and the social cost. Especially the BUE at least having the same social attributes is searched so that the unrelated social attributes of the user can bediluted, the corresponding unnecessary social cost can be weakened and the actually paid social cost of the user is enabled to be low and the preference packet of the user can also be acquired; meanwhile, the cached data packets are transmitted to other VUE by using a vertex dyeing algorithm so that the transmission frequency of the HUE can be reduced and the overall transmission efficiency can beenhanced. The wireless link quality, the social cost of communication between the users and the preference of the user are fully considered so that the user is enabled to acquire the preference packet under the condition of paying low social cost.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to a social content-based D2D packet multi-object caching method, system and device thereof. Background technique [0002] As one of the key technologies in 5G mobile communication, Device-to-Device (D2D) can directly establish a communication channel between adjacent terminal devices without or only a small amount of assistance from the base station, so it can Effectively increase the capacity of the cellular network and reduce the business load of the base station and core network. [0003] With the advent of the digital life era, mobile data traffic is expected to increase 100 times within ten years, which is a huge challenge for cellular networks. With the evolution of mobile communication systems from 4G to 5G, the network architecture has also evolved from User-Centric (UC) to Data-Centric (DC). In recent years, with the increase of cache space and computing power...

Claims

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Application Information

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IPC IPC(8): H04W4/70H04L29/08G06Q50/00
CPCH04W4/70G06Q50/01H04L67/568
Inventor 江明施震威吴宽陈榕佘峰霞
Owner FOSHAN SHUNDE SUN YAT SEN UNIV RES INST
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