MEDIUM ACCESS CONTROL METHOD, BASED ON BROADCAST PREAMBLE INTERCEPTION, FOR COGNITIVE SENSOR NETWORK
文献类型：专利
| 作者 | 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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| 发表日期 | 2020 |
| 著作权人 | SHENYANG INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES |
| 国家 | 欧盟 |
| 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. [en;WO2018153053A1] |
| 申请日期 | 2017-09-07 |
| 语种 | 英语 |
| 状态 | 公开 |
| 源URL | [http://ir.sia.cn/handle/173321/27190]  |
| 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, 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. 2020-01-01. |
入库方式： OAI收割
来源：沈阳自动化研究所
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