Overlapping coverage with reuse partitioning in cellular communication systems

In cellular communication systems overlapping coverage areas of nearby base stations provide some users with access to more than one base. This can be used to improve teletraffic performance. Mobile users who are distant from base stations are helped most by this because they are more likely to be in communication range of other nearby bases. Reuse partitioning, on the other hand, tends to be most helpful to users that are close to base stations, because they can use channels from more partitions. This paper considers the combined use of overlapping coverage and reuse partitioning so that all users gain some advantage. We develop an analytical model for such systems. Theoretical traffic performance characteristics are obtained and compared with those for fixed channel assignment schemes. Priority for handoff calls is considered. Simulation results validate the analysis.