This paper attempted to extend  to a mobile environment. It also presented the results of a simulation of a mobile environment in preparation for simulating the extension. The mobile environment adds several new dimensions to fixed communications analysis, such as cell area, speed, direction, channel holding time, channels used at a base station, frequency of handoffs. This simulation concentrated on finding channel hold time, , and the average number of channels used, , which are required for the extension of .
This paper also suggested areas for further research such as extending  to mobiles which are treated as multiple CBR sources, analyzing queued handoffs, and enhancing the channel hold time and number of channels used by using a PDE for the speed and direction analysis as in .