An efficient distributed channel allocation strategy based on athreshold scheme for mobile cellular networks

摘要

We propose a distributed channel allocation algorithm based on athreshold scheme, called D-CAT, for cellular mobile networks. Thealgorithm employs two thresholds to determine whether a cell is heavy,i.e., overloaded, and the optimal number of free channels as well as thecell(s) from where it needs to import in order to satisfy its channeldemand. Simulation experiments and analyses show that the D-CATalgorithm incurs lower overhead for channel allocation and is moreefficient in terms of channel utilization than other distributed channelallocation algorithms. It also outperforms other centralized anddistributed algorithms in terms of call blocking probability