Time Overhead and Fairness in Spectrum Allocation for Cognitive Radio

Yutao Liu; Mengxiong Jiang; Xuezhi Tan

6th International ICST Conference on Communications and Networking in China

Research Article

Time Overhead and Fairness in Spectrum Allocation for Cognitive Radio

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/ChinaCom.2011.6158115,
    author={Yutao Liu and Mengxiong Jiang and Xuezhi Tan},
    title={Time Overhead and Fairness in Spectrum Allocation for Cognitive Radio},
    proceedings={6th International ICST Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2012},
    month={3},
    keywords={cognitive radio spectrum allocation utility fairness time overhead},
    doi={10.1109/ChinaCom.2011.6158115}
}

Yutao Liu
Mengxiong Jiang
Xuezhi Tan
Year: 2012
Time Overhead and Fairness in Spectrum Allocation for Cognitive Radio
CHINACOM
IEEE
DOI: 10.1109/ChinaCom.2011.6158115

Yutao Liu¹^,*, Mengxiong Jiang¹, Xuezhi Tan¹

1: Harbin Institute of Technology

*Contact email: abcqly@gmail.com

Abstract

The dynamic spectrum access technology can achieve near-optimal spectrum utilization by allowing cognitive users sense and utilize available spectrum opportunistically. Time overhead and fairness are part of the key evaluation criteria for the spectrum allocation algorithms, and a naive spectrum assignment can lead to significant unfairness and system overhead. In this paper, based on graph coloring model, the evaluation system and optimization goals are established. Aim at the poor fairness in the parallel algorithm, an improved algorithm is proposed. Without increasing time overhead, the improved parallel algorithm can improve the allocation fairness between cognitive users. Simulation and analysis prove this conclusion.

Keywords: cognitive radio spectrum allocation utility fairness time overhead

Published: 2012-03-27
Publisher: IEEE

: http://dx.doi.org/10.1109/ChinaCom.2011.6158115