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IEEE/ICACT20230109 Slide.02        [Big Slide]	Oral Presentation
	Dynamic spectrum access (DSA) based spectrum sharing is an effective technique to alleviate the shortage of radio spectrum supply. Most of the existing schemes are only for simple heterogeneous cognitive radio networks. In this paper, we propose a distributed dynamic spectrum access scheme for complex heterogeneous cognitive radio networks. Simulation results show that the algorithm can significantly improve spectrum utilization while controlling the interference of SU to PU. This report consists of the following four parts, which are introduction, model, simulation results and conclusion.

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