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Medium access control method based on broadcast preamble sampling for cognitive sensor network
Alternative Title基于广播前导侦听的认知传感器网络介质访问控制方法
Liang W(梁炜); Yu HB(于海斌); Zheng M(郑萌); Du MY(都满毅); Liu S(刘帅); Yang YT(杨雨沱)
Department工业控制网络与系统研究室
Rights HolderSHENYANG INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES
Country美国
Subtype发明授权
Status有权
AbstractThe present invention relates to cognitive wireless sensor network technologies, and in particular to a medium access control method for a cognitive sensor network based on broadcast preamble sampling. A cognitive node in the cognitive sensor network adopts a periodical dormancy-awakening mechanism. Firstly, a state of a primary user is judged by using a spectrum sensing technology. If the primary user is not active, a data sending node establishes a communication link by using a broadcast preamble code. Each neighbor node simultaneously considers information of hops from a gateway according to an awakening order, and independently determines to serve as a relay node for forwarding data. Furthermore, a transmission conflict between the cognitive node and the primary user may be caused due to return or missed alarm of the primary user. The present invention adopts a retransmission mechanism based on confirmation to ensure transmission reliability of data packets. The present invention i...(前1000字)
description.patentprioritydata20170221 cn201710092252
PCT Attributes
Application Date2017-09-07
2020-07-30
Date Available2020-10-20
Application NumberUS16073041
Open (Notice) NumberUS10813130B2
Language英语
Contribution Rank1
Document Type专利
Identifierhttp://ir.sia.cn/handle/173321/28076
Collection工业控制网络与系统研究室
AffiliationSHENYANG INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES
Recommended Citation
GB/T 7714
Liang W,Yu HB,Zheng M,et al. Medium access control method based on broadcast preamble sampling for cognitive sensor network[P]. 2020-07-30.
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