| 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)
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| Department | 工业控制网络与系统研究室 |
| Rights Holder | Shenyang Institute of Automation, the Chinese Academy of Sciences |
| Country | 世界专利组织 |
| Subtype | 发明 |
| Status | 公开 |
| Abstract | 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. |
| description.patentprioritydata | cn201710092252.5 20170221 |
| PCT Attributes | 是 |
| IPC Classification Number | H04W52/02 |
| Application Date | 2017-09-07 |
| 2018-08-30 | |
| Application Number | WO2017CN100828 |
| Open (Notice) Number | WO2018153053A1 |
| Language | 英语 |
| Contribution Rank | 1 |
| Document Type | 专利 |
| Identifier | http://ir.sia.cn/handle/173321/23549 |
| Collection | 工业控制网络与系统研究室 |
| Affiliation | Shenyang Institute of Automation, the 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 INTERCEPTION, FOR COGNITIVE SENSOR NETWORK[P]. 2018-08-30. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| WO2018153053A1.pdf（689KB） | 专利 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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