Demand-Driven Dynamic Spectrum Allocation in Heterogeneous Cellular Networks
(2011) In International Journal of Wireless and Microwave Technologies(IJWMT) 1(2). p.8-15- Abstract
- 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... (More) - 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3409683
- author
- Wang, Li ; Yi, Huiyue ; Hu, Honglin ; Liu, Jianan LU and Chen, Bin
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Dynamic spectrum allocation, coordinated dynamic spectrum access, physical interference model
- in
- International Journal of Wireless and Microwave Technologies(IJWMT)
- volume
- 1
- issue
- 2
- pages
- 8 - 15
- publisher
- MECS Publisher
- ISSN
- 2076-1449
- DOI
- 10.5815/ijwmt
- language
- English
- LU publication?
- no
- id
- 386d1db8-1411-4e94-8437-2a7fe3febd17 (old id 3409683)
- date added to LUP
- 2016-04-01 14:43:09
- date last changed
- 2020-02-25 19:04:14
@article{386d1db8-1411-4e94-8437-2a7fe3febd17, abstract = {{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 <br/><br> 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.}}, author = {{Wang, Li and Yi, Huiyue and Hu, Honglin and Liu, Jianan and Chen, Bin}}, issn = {{2076-1449}}, keywords = {{Dynamic spectrum allocation; coordinated dynamic spectrum access; physical interference model}}, language = {{eng}}, number = {{2}}, pages = {{8--15}}, publisher = {{MECS Publisher}}, series = {{International Journal of Wireless and Microwave Technologies(IJWMT)}}, title = {{Demand-Driven Dynamic Spectrum Allocation in Heterogeneous Cellular Networks}}, url = {{http://dx.doi.org/10.5815/ijwmt}}, doi = {{10.5815/ijwmt}}, volume = {{1}}, year = {{2011}}, }