MEDIUM ACCESS CONTROL METHOD, BASED ON BROADCAST PREAMBLE INTERCEPTION, FOR COGNITIVE SENSOR NETWORK

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 工业控制网络与系统研究室

	MEDIUM ACCESS CONTROL METHOD, BASED ON BROADCAST PREAMBLE INTERCEPTION, FOR COGNITIVE SENSOR NETWORK
	Zheng M(郑萌); Yu HB(于海斌); Yang YT(杨雨沱); Liu S(刘帅); DU M(都满毅); Liang W(梁炜)
	2018-08-30
著作权人	Shenyang Institute of Automation, the Chinese Academy of Sciences
国家	世界专利组织
文献子类	发明
产权排序	1
英文摘要	The present invention relates to wireless cognitive sensor network technology. Disclosed is a medium access control method, based on broadcast preamble interception, for a cognitive sensor network. A cognitive node in a cognitive sensor network uses a periodic sleep-wake-up mechanism. First, spectrum-sensing technology is used to determine a state of a primary user, and if the primary user is not active, a data-sending node establishes a communication link by means of broadcasting a preamble. According to a wake-up sequence, each neighbour node takes information about the number of hops for reaching a gateway into consideration at the same time, and autonomously decides to act as a relay node for data forwarding. In addition, since a transmission collision between the cognitive node and the primary user is possibly caused by the primary user returning or a missed alarm, the present invention uses a re-transmission mechanism based on confirmation so as to ensure the reliability of data packet transmission. The present invention is independent of a common control channel, and can realise the low-overhead and reliable access of a licensed frequency band by a cognitive sensor network.
申请日期	2017-09-07
语种	英语
状态	公开
内容类型	专利
源URL	[http://ir.sia.cn/handle/173321/23549]
专题	沈阳自动化研究所_工业控制网络与系统研究室
作者单位	Shenyang Institute of Automation, the Chinese Academy of Sciences
推荐引用方式 GB/T 7714	Zheng M,Yu HB,Yang YT,et al. MEDIUM ACCESS CONTROL METHOD, BASED ON BROADCAST PREAMBLE INTERCEPTION, FOR COGNITIVE SENSOR NETWORK. 2018-08-30.