
220 ◾ Ling-Jyh Chen and Ting-Kai Huang
© 2011 by Taylor & Francis Group, LLC
kill time [29], and reverse path forwarding [22]). Generally, the more replicated
data stored in the network, the better the service ratio achieved by the M-FTP
scheme. e trade-o should be based on the required service ratio and the avail-
able buer sizes. We defer a detailed discussion and evaluation of this issue to a
future work.
0
0.2
0.4
0.6
0.8
0 10 20 30 40 50 60 70 80 90 100
e Percentage of Freeriders (%)
M-FTP
Figure 8.5 (Continued)
Table8.3 Comparison of the Traffic Overhead Performance of the M-FTP
and Mobile Hotspots Schemes (Units: Mbytes) ...