Base station data cooperative caching model and method based on content similarity

A similarity, base station technology, applied in the field of base station data cooperative caching model based on content similarity, can solve the problem of less attention to the problem of microcell base station cache data acquisition overhead, etc.

Pending Publication Date: 2020-08-18
NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the current caching research, less attention has been paid to the acquisition overhead of femtocell base station caching data.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Base station data cooperative caching model and method based on content similarity
  • Base station data cooperative caching model and method based on content similarity
  • Base station data cooperative caching model and method based on content similarity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] A specific embodiment of the present invention is described as follows: the system simulation adopts Matlab software, and the parameter setting does not affect generality; N=10 microcell base stations are randomly arranged in a 200m×200m network scene, and a single data is from the macrocell base station Get overhead α n0 Uniformly set to 1, base station time data sharing overhead α jn Is 0.3, the data requirement of a single base station is 10, the data distribution is uniformly distributed, the overall sample is set to 50, and the basic overhead of the base station is BS n Is 5.

[0080] The base station cooperative caching method of the present invention based on content similarity, the specific process is as follows:

[0081] Step 1: Initialize, set the number of iterations t=0, and each base station n∈N randomly generates a buffer strategy.

[0082] Step 2: Cache strategy selection strategy update (cycle):

[0083] ① All micro cells exchange information;

[0084] ② In each...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a base station data cooperative caching model and method based on content similarity. When the data content of a micro cellular base station is acquired, neighbor base stationswith similar content cooperate to download repetitive data in a centralized manner, so that the repetitive downloading of the similar content is reduced, the utilization rate of spectrum resources isimproved, and the data acquisition overhead is reduced. The method comprises firstly, constructing a generalized local game model, wherein game participants are micro cellular base stations; for anymicro cellular base station, dividing other micro cellular base stations into one-hop neighbors, two-hop neighbors and other base stations according to the communication range; randomly generating acaching strategy by each base station; randomly selecting a base station, calculating the data acquisition overhead, changing the caching strategy, recalculating the overhead, and updating the strategy according to the probability; and repeating the iteration process until all base station policies converge or reach the set iteration times. The cooperative relationship between the base stations can be excavated more deeply, so that the data caching strategy is more efficient, and the overhead is further reduced.

Description

Technical field [0001] The invention belongs to the field of wireless communication technology, and proposes a base station data cooperative caching model and method based on content similarity. Background technique [0002] With the development of mobile communication technology, the data traffic load of base stations has also shown an explosive growth trend. Caching technology (M. Taghizadeh, K. Micinski, C. Ofria, et.al., "Distributed Cooperative Caching in Social Wireless Networks", IEEE Trans. Mobile Computing, vol. 12, no. 6, pp. 1037-1053, 2013 .) The ability to physically store data to reduce the amount of data requests from the base station to the core network has attracted a lot of attention from researchers and is considered to be one of the effective techniques to reduce the load of the base station. Related documents currently cached (FANG Chao, YU F. Richard, HUANG Tao, LIU Jiang, LIU Yunjie, "A Game Theoretic Approach for Energy-Efficient InNetwork Caching in Cont...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/22H04W24/02H04W88/08G06F17/10
CPCH04W16/22H04W24/02H04W88/08G06F17/10
Inventor 彭进霖张玉立张博
Owner NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap