Demand-Driven Dynamic Spectrum Allocation in Heterogeneous Cellular Networks

Provided by: mecs-press
Topic: Mobility
Format: PDF
In this paper, the authors address the dynamic spectrum allocation problem in next generation cellular networks under the Coordinated Dynamic Spectrum Access (CDSA) model. Firstly, considering spectrum demands of base stations, they formulate spectrum allocation under physical interference models as a nonlinear optimization problem. Then, they propose a demand-driven dynamic spectrum allocation algorithm by transforming this nonlinear optimization problem into linear programming problem. The proposed algorithm first computes initial spectrum allocation and then applies iterative enhancement.

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