Entropy Method Based Evaluation for Spectrum Usage Efficiency of International Mobile Telecommunication Systems

Currently the radio spectrum resource has become increasingly scarce. Evaluating the usage of frequency bands with existing radio services, strengthening management of allocated resource and improving the spectrum utilization have been becoming an important way of improving spectrum management level. In particular, it is urgent to evaluate the efficiency of spectrum usage for International Mobile Telecommunication (IMT) Systems which is in great spectrum demand. In this paper, an evaluation indicator model is proposed according to the current situation of IMT Systems spectrum usage. The set of evaluation indicators is different from those of the conventional mobile communication network which is generally used for the operator network planning and network optimization. The study of evaluation model in this paper comes from spectrum manager's perspective. Firstly, this paper introduced investigation of spectrum management at home and aboard, then described the proposed evaluating indicators, finally we creatively combined entropy method with sample data based on the model. It can be seen that the proposed evaluation model is reasonable and helpful to support relevant spectrum management work.