Maximizing Rendezvous Diversity in Rendezvous Protocols for   Decentralized Cognitive Radio Networks

doi:10.1109/TMC.2012.103

CORC > 北京大学 > 信息科学技术学院

	Maximizing Rendezvous Diversity in Rendezvous Protocols for Decentralized Cognitive Radio Networks
	Bian, Kaigui ; Park, Jung-Min &apos ; Jerry&apos
刊名	ieee transactions on mobile computing
	2013
关键词	Cognitive radio maximum rendezvous diversity asynchronous channel hopping CONTROL CHANNEL ESTABLISHMENT ACCESS
DOI	10.1109/TMC.2012.103
英文摘要	In decentralized cognitive radio (CR) networks, establishing a link between a pair of communicating nodes requires that the radios "rendezvous" in a common channel-such a channel is called a rendezvous channel-to exchange control information. When unlicensed (secondary) users opportunistically share spectrum with licensed (primary or incumbent) users, a given rendezvous channel may become unavailable due to the appearance of licensed user signals. Ideally, every node pair should be able to rendezvous in every available channel (i.e., maximize the rendezvous diversity) so that the possibility of rendezvous failures is minimized. Channel hopping (CH) protocols have been proposed previously for establishing pairwise rendezvous. Some of them enable pairwise rendezvous over all channels but require global clock synchronization, which may be very difficult to achieve in decentralized networks. Maximizing the pairwise rendezvous diversity in decentralized CR networks is a very challenging problem. In this paper, we present a systematic approach for designing CH protocols that maximize the rendezvous diversity of any node pair in decentralized CR networks. The resulting protocols are resistant to rendezvous failures caused by the appearance of primary user (PU) signals and do not require clock synchronization. The proposed approach, called asynchronous channel hopping (ACH), has two noteworthy features: 1) any pair of CH nodes are able to rendezvous on every channel so that the rendezvous process is robust to disruptions caused by the appearance of PU signals; and 2) an upper bounded time-to-rendezvous (TTR) is guaranteed between the two nodes even if their clocks are asynchronous. We propose two optimal ACH designs that maximize the rendezvous diversity between any pair of nodes and show their rendezvous performance via analytical and simulation results.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000319411600004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Computer Science, Information Systems; Telecommunications; SCI(E); 27; ARTICLE; 7; 1294-1307; 12
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/152283]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Bian, Kaigui,Park, Jung-Min &apos,Jerry&apos. Maximizing Rendezvous Diversity in Rendezvous Protocols for Decentralized Cognitive Radio Networks[J]. ieee transactions on mobile computing,2013.
APA	Bian, Kaigui,Park, Jung-Min &apos,&Jerry&apos.(2013).Maximizing Rendezvous Diversity in Rendezvous Protocols for Decentralized Cognitive Radio Networks.ieee transactions on mobile computing.
MLA	Bian, Kaigui,et al."Maximizing Rendezvous Diversity in Rendezvous Protocols for Decentralized Cognitive Radio Networks".ieee transactions on mobile computing (2013).