| Primary Parameter | Meaning |
|---|---|
| Trace duration | amount of time between the start and end of a trace |
| Number of zones | total number of regions with mobile users in the trace |
| Users per zone | average number of users found in a zone |
| Calls per hour | calling activity level of an average user |
| Call duration | average length of a call between users |
| Moves per hour | movement level of an average user |
| Move duration | duration of mobile period |
Secondary Parameter Definitions
| Secondary Parameter | Meaning |
|---|---|
| Zone configuration | general structure of the set of zones |
| Callee distribution | structure of a user's set of call recipients |
| Destination distribution | function defining a user's move distance |
| Hidden Parameter | Meaning |
|---|---|
| Trace time unit | temporal granularity of trace events |
| Zone size | spatial granularity of move events |
| Population density | Users per zone / Zone size |
| Call probability | function of Calls per hour and Call duration |
| Move probability | function of Moves per hour and Move duration |
| Move velocity | function of Zone size and Move probability |
