Demand-Driven Dynamic Spectrum Allocation in Heterogeneous Cellular Networks

Full Text (PDF, 237KB), PP.8-15

Views: 0 Downloads: 0

Author(s)

Huiyue Yi 1,* Honglin Hu 1 Jianan Liu 1 Bin Chen 2 Li Wang 1

1. Shanghai Research Center for Wireless Communications, (WiCO), Shanghai, P. R. China

2. Huawei Technologies Co., LTd, Shenzhen, P. R. China

* Corresponding author.

DOI: https://doi.org/10.5815/ijwmt.2011.02.02

Received: 3 Jan. 2011 / Revised: 1 Feb. 2011 / Accepted: 2 Mar. 2011 / Published: 15 Apr. 2011

Index Terms

Dynamic spectrum allocation, coordinated dynamic spectrum access, physical interference model

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 satisfaction degree.

Cite This Paper

Li Wang,Huiyue Yi,Honglin Hu,Jianan Liu,Bin Chen,"Demand-Driven Dynamic Spectrum Allocation in Heterogeneous Cellular Networks", IJWMT, vol.1, no.2, pp. 8-15, 2011. DOI: 10.5815/ijwmt.2011.02.02 

Reference

[1] M. M. Buddhikot, P. Kolodzy, S. Miller, K. Ryan, and J. Evans, "DIMSUMnet: new directions in wireless networking using coordinated dynamic spectrum access," in IEEE WoWMoM, June 2005.

[2] P. Gupta, P. R. Kumar, "The capacity of wireless networks," IEEE Transactions on Information Theory, vol. 46, no. 2, pp.388-404, Mar. 2000.

[3] M. M. Buddhikot, K. Ryan, "Spectrum management in coordinated dynamic spectrum access based cellular networks," in IEEE DySPAN, November 2005.

[4] A. P. Subramanian, H. Gupta, S. R. Das, M. M. Buddhikot, "Fast spectrum allocation in coordinated dynamic spectrum access based cellular networks," in IEEE DySPAN, April 2007.

[5] L. Cao, H. Zheng, "Spectrum allocation in ad hoc networks via local bargaining," in Proc. of SECON, September 2005.

[6] G. Brar, D. Blough, P. Santi, "Computationally efficient scheduling with the physical interference model for throughput improvement in wireless mesh networks," in Proc. of ACM MobiCom, September 2006.

[7] T. Moscibroda, R. Wattenhofer, Y. Weber, "Protocol design beyond Graph-based models," in 5th Workshop on Hot Topics in Networks (HotNets). Irvine, California, USA, 2006.

[8] L. Cao, L. Yang, X. Zhou, Z.B. Zhang and H. Zheng, "Optimus: SINR-driven Spectrum Distribution via Constraint Transformation" to appear in Proc. of IEEE DySPAN ,April 2010.