Study of different distributed measurement-based algorithms forfrequency pre-assignment for TDMA/FDMA portable radio systems

摘要

In view of the emerging personal communications, the quasi-fixedndistributed measurement-based frequency assignment (also known asnautonomous frequency assignment) methodology is superior to thenconventional centralized, predication-based fixed channel allocationn(FCA). It also avoids the present hardware limitations on the fullyndynamic channel allocation (DCA). Five autonomous frequency assignmentn(ACA) algorithms are studied to observe the effect of signal thresholdnon the algorithms. It is found that the introduction of a thresholdncannot improve the performance and a simple aggressive algorithm withoutnusing a threshold performs the best