Traffic performance analysis of the integrated dual band cellular radio networks

The teletraffic performance of integrated dual band networks is evaluated. The network links two cellular radio systems which have a different set of frequency bands and the same cell size to a single base station. Dual band mobile stations use handoff to establish calls on the better system. The multi-dimensional birth-death process is used to characterize the system state and evaluate the performance of dual band networks in a given cell. The analytical results show that the integrated dual band network can provide higher offered traffic load than the heterogeneous network which can only handle roaming between two cellular radio systems. The blocking probability and the offered traffic load of the integrated dual band network are also calculated by the Erlang-B formula to give a correct validity.