Modeling dynamic channel allocation in multicellular communicationnetworks

摘要

Future cellular mobile communication networks will exploitnmicrocellular architectures and dynamic channel allocation in order tonmeet the rapidly increasing traffic demand. In this paper, an analyticalnmodel has been developed in order to evaluate the performance of maximumnpacking, a dynamic channel allocation scheme for cellular communicationnnetworks. Specifically, a finite number of users has been assumed,nmoving in a geographical region, covered by a finite set of cells. Thenconsidered users are characterized by a variable degree of mobility,nwhich allows both variable sized cells and different user speeds to benanalyzed. The model, based on queueing networks, allows the evaluationnof the main system performance parameters in terms of blockingnprobability of new calls, handoff blocking probability, forcedntermination probability, unsuccessful probability, and throughput.nPerformance predictions are confirmed by simulation in a wide range ofnload conditions and user mobility