International Journal of Wireless and Microwave Technologies

作者：Li Wang, Huiyue Yi, Honglin Hu, Jia-Nan Liu, Bin Chen · 发表于：International Journal of Wireless and Microwave Technologies · 年份：2026 · DOI：10.5815/ijwmt · 被引用次数：12 · 研究领域：Mobile Ad Hoc Networks、Advanced Wireless Network Optimization、Cooperative Communication and Network Coding

In this paper, we 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, we formulate spectrum allocation under physical interference models as a nonlinear optimization problem. Then, we 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. Detailed simulations show that the proposed algorithm outperforms the existing algorithms in effective spectrum utilization efficiency and in average satisfaction degree.