A general mobility model for wireless cellular communication

Abstract

The mobility model of mobile terminals in cellular communication has heavy impact on call admission control (CAC) algorithm. The traditional models have a common defect that a channel is the minimum resource allocation unit which leads to the unsuitability for data communication. However, researches on shared channel in CAC are still lacking. In this article, a general mobility model for cellular communication is put forward and corresponding mathematic formula for admission probability is given. From such model, many mobility models can be derived by combining or decomposing some parameters from different viewpoint. The defect of traditional models is overcome by introducing bandwidth into the model. A methodological idea is also generalized which may be helpful for researching systematic problems such as QoS.