
Trace-Based Analysis of Mobile User Behaviors ◾ 167
Trace-Based Analysis of Mobile User Behaviors
performance of information diusion in terms of both the reachability and the aver-
age delay (see Figure6.17). In other words, short encounter events are not the key reason
for the success of information diusion. e encounter events with long durations are
also rich enough to be utilized for message propagation in most cases.
6.5.6 Conclusions for the Encounter Analysis
In this section, we investigated the encounters between MNs in WLAN traces from
ve sources. We found that MNs encounter only a small subset of other nodes (on
average between ...