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Demand-Driven Dynamic Spectrum Allocation in Heterogeneous Cellular Networks

Wang, Li; Yi, Huiyue; Hu, Honglin; Liu, Jianan LU and Chen, Bin (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)
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author
publishing date
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
2013-01-28 12:19:53
date last changed
2016-06-29 09:14:01
@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},
  keyword      = {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},
  volume       = {1},
  year         = {2011},
}