Bringing Geospatial Data Closer to Mobile Users: A Caching Approach Based on Vector Tiles for Wireless Multihop Scenarios

Figure 11

Time cost from terminal’s view on showing the initial map (zoom level varies at different cache locations): (a) cache is unavailable at all the locations; (b) cache is available at server; (c) cache is available at G2; (d) cache is available at G1.

(a)

(b)

(c)

(d)