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 |