Modelling on Dynamic Spectrum Planning of Cognitive Radio Networks Based on Stochastic Approach

DOI

10.2991/amms-17.2017.43How to use a DOI?

Keywords

cognitive radio networks; spectrum planning; stochastic geometry; robustness

Abstract

Cognitive Radio (CR) is a promising technology for overcoming the lack of available communication bands. However, in Cognitive Radio Networks (CRN), available spectrum changes due to the user mobility. In this paper, we investigate dynamic spectrum planning and allocation in CRN, which considers the mobility of the cognitive users. The on-line dynamic spectrum planning and allocation problem under conventional model is a NP-hard one, which is generally hard to solve due to the unacceptable computational complexity. We propose a model design in a stochastic geometry approach and an off-line dynamic spectrum planning scheme based on this model. Specifically, to evaluate the robustness performance of the cognitive radio networks, we derive the average collision time T in closed form under this model. Further, the value of T will be used to select the best scheme of spectrum utilization. The rationality of this dynamic spectrum planning approach is also verified through computer simulations.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Qiucheng Shan
AU  - Dongtang Ma
AU  - Jun Xiong
AU  - Xiaoying Zhang
PY  - 2017/11
DA  - 2017/11
TI  - Modelling on Dynamic Spectrum Planning of Cognitive Radio Networks Based on Stochastic Approach
BT  - Proceedings of the 2017 International Conference on Applied Mathematics, Modeling and Simulation (AMMS 2017)
PB  - Atlantis Press
SP  - 195
EP  - 200
SN  - 1951-6851
UR  - https://doi.org/10.2991/amms-17.2017.43
DO  - 10.2991/amms-17.2017.43
ID  - Shan2017/11
ER  -