1. A method for delivering objects to one or more receiver units, comprising: receiving a number of incoming objects, each object corresponding to one or more classes; maintaining objects from a variety of classes in an object schedule, wherein each object has a utility factor comprising one or more of the importance of the object, the timeliness of the object, and the number of objects previously transmitted in a same or related class as the current object; and delivering selected objects from the object schedule to the one or more receiver units.