AN ADAPTIVE CHANNEL ALLOCATION STRATEGY USING MULTIPLE OVERLAID PRIORITY FOR CELLULAR-SYSTEMS

Dynamic channel assignment (DCA) is an essential technique in mobile t elecommunication systems because it uses the limited radio spectrum ef ficiently. In recent years, adaptive channel allocation (ACA) has been receiving a lot of attention as a better way of utilizing DCA. This p aper proposes a new strategy for ACA-multiple overlaid priority adapti ve channel allocation (MOP-ACA). It achieves reuse partitioning throug h learning processes at each base station without exchanging informati on on channel usage among neighboring base stations or control station s. The characteristics of MOP-ACA are evaluated by computer simulation s. It is shown that MOP-ACA equals the high spectrum efficiency achiev ed by flexible reuse and that the number of channel tests is smaller t han is possible with channel segregation, In other words, MOP-ACA is e ffective for control load reduction and simple cell design as well as for high spectrum efficiency.