Mobility

The mobility support includes:

• a set of mobility models which are used to track and maintain the "current" cartesian position and speed of an object.

• a "course change notifier" trace which can be used to register listeners to the course changes of a mobility model

The mobility models themselves are:

• ns3::ConstantPositionMobilityModel: a model which maintains a constant position until it is changed by the user.

• ns3::ConstantVelocityMobilityModel: a model which maintains a constant speed until it is changed by the user.

• ns3::HierarchicalMobilityModel: a model which calculates the current absolute position from a "reference" (parent) mobility model and a "relative" (child) mobility model. This allows users to compose mobility models.

• ns3::RandomWalk2dMobilityModel: a 2d "brownian" motion mobility model where the bounds of the mobility area are a rectangle.

• ns3::RandomWaypointMobilityModel: a 3d random waypoint mobility model.

• ns3::RandomDirection2dMobilityModel: a 2d random direction mobility model where the bounds of the mobility are are a rectangle.