QQ客服 官方微博 反馈留言

	Opportunistic channel selection approach under collision probability constraint in cognitive radio systems
	Xiao, Qinghai ; Li, Yunzhou ; Zhao, Ming ; Zhou, Shidong ; Wang, Jing
	2010-10-12 ; 2010-10-12
关键词	Opportunistic channel selection Collision probability Collision tolerable level Collision rate Handoff rate Computer Science, Information Systems Engineering, Electrical & Electronic Telecommunications
中文摘要	In this work, we consider a cognitive radio system with multiple primary channels and one secondary user, and then we introduce a channel-usage pattern model and some basic concepts in this system. Based on this system model and the basic concepts, we propose two Opportunistic channel selection algorithms to optimize the throughput of the secondary user: minimum collision rate channel selection algorithm and minimum handoff rate channel selection algorithm. According to the two algorithms, we, respectively, present the channel selection scheme based on minimum collision rate algorithm (CSS-MCRA) and the channel selection scheme based on minimum handoff rate algorithm (CSS-MHRA) under the constraint that the collision probability is bounded below collision tolerable level. Theoretical analysis and simulation results both show that, on one hand, both CSS-MCRA scheme and CSS-MHRA can follow the constraint of collision tolerable level; on the other hand, the performance of CSS-MCRA scheme is better than that of CSS-MHRA scheme if handoff latency is zero or very low, while the performance of CSS-MHRA scheme is better than that of CSS-MCRA scheme if handoff latency is long enough. (C) 2009 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE BV ; AMSTERDAM ; PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82642]
专题	清华大学
推荐引用方式 GB/T 7714	Xiao, Qinghai,Li, Yunzhou,Zhao, Ming,et al. Opportunistic channel selection approach under collision probability constraint in cognitive radio systems[J],2010, 2010.
APA	Xiao, Qinghai,Li, Yunzhou,Zhao, Ming,Zhou, Shidong,&Wang, Jing.(2010).Opportunistic channel selection approach under collision probability constraint in cognitive radio systems..
MLA	Xiao, Qinghai,et al."Opportunistic channel selection approach under collision probability constraint in cognitive radio systems".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。