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Mobility-Aware Content Caching Using Graph-Coloring
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DOI：10.1109/TVT.2022.3156528.png)
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摘要
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Caching the popular files in the memories of small base stations (SBSs) is an effective solution to the limited capacity of wireless backhaul links. The efficiency of caching depends on the proper design of the content placement. This is more challenging when the SBSs have overlapped coverage and especially when the users are also mobile. In this letter, we exploit the concept of graph-coloring and model the connection between SBSs and users as well as user mobilities, through a weighted graph in which SBSs are its vertices, and propose some algorithms to color it effectively. Then, we fill the memory of colored SBSs with popular content accordingly.
Keyword:
Color
Indexes
Topology
Network topology
Optimization
Numerical models
Macrocell networks
Caching
mobility
graph coloring
期刊
IF:
7.1
论文数:
1.8W
被引数:
6.6W
机构
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