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Table 1 Definition of variables

From: Intelligent data cache based on content popularity and user location for Content Centric Networks

Variable

Definition

\(G\)

Given undirected graph

\(V\)

A set of routers

\(E\)

A set of links between routers

\(R_{j}\)

Total requested number of type \(j\) data

\(r_{ij}\)

Requested number type \(j\) data on router \(z_{i}\)

\(C\)

Released cache capacity of all routers

\(c_{i}\)

Released cache capacity of router \(z_{i}\)

\({\mathbb{H}}_{lj}\)

Boolean operator records cache hit or miss of the data \(j\) on router \(z_{i}\)

\(h_{j}\)

Hit rate of content \(j\)

\(H_{ij}\)

Cache hit rate of content \(j\) on router \(z_{i}\)

\(D_{j}^{i}\)

Cache capacity occupied by content \(j\) on router \(z_{i}\)

\(B_{i}\)

Benefit of router \(z_{i}\)

\(U_{ij}\)

Cache capacity utilization of data content \(j\) on router \(z_{i}\)

\(P\)

Average of cache utilization