An Estimation Algorithm of Channel State Transition Probabilities for Cognitive Radio Systems

Xin Long; Xiaoying Gan; Jing Liu; Meixia Tao; Youyun Xu

3rd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications

Research Article

An Estimation Algorithm of Channel State Transition Probabilities for Cognitive Radio Systems

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/CROWNCOM.2008.4562505,
    author={Xin Long and Xiaoying Gan and Jing Liu and Meixia Tao and Youyun Xu},
    title={An Estimation Algorithm of Channel State Transition Probabilities for Cognitive Radio Systems},
    proceedings={3rd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications},
    publisher={IEEE},
    proceedings_a={CROWNCOM},
    year={2008},
    month={7},
    keywords={Estimation; Cognitive Radio; POMDP; Channel State Transition Probability;},
    doi={10.1109/CROWNCOM.2008.4562505}
}

Xin Long
Xiaoying Gan
Jing Liu
Meixia Tao
Youyun Xu
Year: 2008
An Estimation Algorithm of Channel State Transition Probabilities for Cognitive Radio Systems
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2008.4562505

Xin Long¹^,*, Xiaoying Gan¹^,*, Jing Liu¹, Meixia Tao¹, Youyun Xu²

1: Department of Electronic Engineering Shanghai Jiao Tong University Shanghai, China
2: Department of Wireless Communications Nanjing Institute of Communications Engineering Nanjing, China

*Contact email: longx_rssoc@sjtu.edu.cn, ganxiaoying@sjtu.edu.cn

Abstract

In this paper, an estimation algorithm of channel state transition probabilities in Markov channel model for cognitive radio systems is proposed. The framework of POMDP is adopted to solve the problem of channel selection. Maximum likelihood method is used to estimate the channel state transition probabilities, which is crucial to POMDP. Central Limit Theorem is introduced to get the relationship between the precision, sample times and the channel state transition probability values. The simulation results show the reliability of the estimation results.

Keywords: Estimation; Cognitive Radio; POMDP; Channel State Transition Probability;

Published: 2008-07-15
Publisher: IEEE
Modified: 2010-05-16

: http://dx.doi.org/10.1109/CROWNCOM.2008.4562505