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MEDIUM ACCESS CONTROL METHOD, BASED ON BROADCAST PREAMBLE INTERCEPTION, FOR COGNITIVE SENSOR NETWORK
Liang W(梁炜); Yu HB(于海斌); Zheng M(郑萌); DU M(都满毅); Liu S(刘帅); Yang YT(杨雨沱)
所属部门工业控制网络与系统研究室
专利权人Shenyang Institute of Automation, the Chinese Academy of Sciences
授权国家世界专利组织
专利类型发明
专利状态公开
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.
优先权数据cn201710092252.5 20170221
PCT属性
IPC 分类号H04W52/02
申请日期2017-09-07
2018-08-30
申请号WO2017CN100828
公开(公告)号WO2018153053A1
语种英语
产权排序1
文献类型专利
条目标识符http://ir.sia.cn/handle/173321/23549
专题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
Liang W,Yu HB,Zheng M,et al. MEDIUM ACCESS CONTROL METHOD, BASED ON BROADCAST PREAMBLE INTERCEPTION, FOR COGNITIVE SENSOR NETWORK[P]. 2018-08-30.
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