| 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)
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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 | 美国 |
| Subtype | 发明 |
| Status | 有权 |
| Abstract | The 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.patentprioritydata | 20170221 cn201710092252a;20170907 cn2017100828w |
| PCT Attributes | 是 |
| Application Date | 2017-09-07 |
| 2020-07-30 | |
| Date Available | 2020-10-20 |
| Application Number | US201716073041A |
| Open (Notice) Number | US2020245358A1 |
| Language | 英语 |
| Contribution Rank | 1 |
| Document Type | 专利 |
| Identifier | http://ir.sia.cn/handle/173321/27642 |
| 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 SAMPLING FOR COGNITIVE SENSOR NETWORK[P]. 2020-07-30. |
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