Performance of a micro-macrocellular system with overlapping coverage and channel rearrangement techniques

In this paper, a new way to manage users having different mobility in a two-tier cellular system, through the use of the techniques of overlapping coverage and channel rearrangement, is provided. Overlapping coverage areas of nearby base stations arise in cellular communications systems, especially in small cell high-capacity microcellular configurations. With overlap, some users may have access to channels at more that one base station. This enhanced access can be used to improve teletraffic performance characteristics. Channel rearrangements are used to benefit users who are in range of only one base station. An analytical model is developed to determine performance measures.