To better understand the impact of user behavior on network resources, we further study the relations between the three features (Data Usage, Mobility Pattern and Application Usage) in this section. Our study will be performed within and between user groups, e.g. the groups with different data usage pattern and the groups with different mobility pattern. Heavy users generate the majority of the traffic in Mobile Internet, leading to a major consumption of the network bandwidth. High mobility users cause high frequency of hand off activities, which, in turn, consume much extra radio resources. We call these two user groups “Big Consumer of Resource”. A deep understanding of behavior of the big consumers could help us plan network development and resource allocation better.
A. Mobility Vs. Data Usage
It is interesting to find out how frequent users switch between different cells, and whether there is any difference between heavy and normal users in terms of their mobility.
We first draw a CDF of traffic generated by users in the week for each mobility group. We can see from Fig. 15 the higher users mobility is, the more traffic they generate. This means that people tend to use their mobile device when they travel or on commute.