A Distributed Decision Making Method in Cognitive Radio Networks for Spectrum Management

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	A Distributed Decision Making Method in Cognitive Radio Networks for Spectrum Management
	Ge Yuming 1,2; Sun Yi 1; Lu Shan 1,2; Dutkiewicz, Eryk 3
刊名	CHINESE JOURNAL OF ELECTRONICS
	2010-04-01
卷号	19 期号:2 页码:195-200
关键词	Cognitive radio networks Reconfiguration Spectrum decision
ISSN号	1022-4653
英文摘要	In order to make full utilization of the scarce spectrum resources for Cognitive radio networks, secondary users are expected to exploit the available spectrum of primary users. However, when there are several spectrum bands available, how to select an appropriate one for the secondary user according to the spectrum quality and the QoS requirements of different kinds of applications is a new challenge. In this paper, we propose a new Automatic distributed spectrum decision (ADSD) method to solve this problem. ADSD considers multiple spectrum characterization parameters, in particular, the primary users' arrival probability, to estimate the quality of the available spectrum bands. A weight auto-generation mechanism is included to automatically determine the weights of different parameters, thus avoiding the difficulty and irrationality when relying on the users to specify the weights directly. In addition, in conjunction with the reconfiguration mechanism, ADSD can reduce the rate of spectrum handoffs by reconfiguring the transmission parameters rather than making a new decision for the existing transmission. Simulation results show that without any users' interference, ADSD can automatically select the appropriate spectrum for transmission and significantly improve the Cognitive Radio network performance in terms of throughput and the spectrum handoff rate.
资助项目	National Basic Research Program of China[2007CB310702] ; Co-building Programof Beijing Municipal Education Commission[20083050]
WOS研究方向	Engineering
语种	英语
出版者	TECHNOLOGY EXCHANGE LIMITED HONG KONG
WOS记录号	WOS:000277070900001
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/12026]
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Ge Yuming
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Macquarie Univ, Sydney, NSW 2109, Australia
推荐引用方式 GB/T 7714	Ge Yuming,Sun Yi,Lu Shan,et al. A Distributed Decision Making Method in Cognitive Radio Networks for Spectrum Management[J]. CHINESE JOURNAL OF ELECTRONICS,2010,19(2):195-200.
APA	Ge Yuming,Sun Yi,Lu Shan,&Dutkiewicz, Eryk.(2010).A Distributed Decision Making Method in Cognitive Radio Networks for Spectrum Management.CHINESE JOURNAL OF ELECTRONICS,19(2),195-200.
MLA	Ge Yuming,et al."A Distributed Decision Making Method in Cognitive Radio Networks for Spectrum Management".CHINESE JOURNAL OF ELECTRONICS 19.2(2010):195-200.