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OFDM TECHNOLOGY-BASED FREQUENCY DOMAIN POLLING METHOD FOR WIRELESS SENSOR NETWORK
其他题名一种基于OFDM技术的工业无线网络频域轮询方法
Liang W(梁炜); Yu HB(于海斌); Lin JR(林俊如); Zhang XL(张晓玲); Zeng P(曾鹏); Li SM(李世明)
所属部门工业控制网络与系统研究室
专利权人SHENYANG INSTITUTE OF AUTOMATION, 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 the industrial wireless network technology, and particularly to an OFDM technology-based frequency domain polling method for a wireless sensor network. The present invention comprises the steps of: initial polling configuration: an AP allocating a polling group ID and a subcarrier ID to a node which is newly added into a network OFDM frequency domain polling: the AP sending a polling request message, and after the node receives the polling request message, the AP responding in a frequency domain using an OFDM subcarrier and TDMA slot allocation and node data transmission: according to the response condition of each polled node, the AP allocating a TDMA slot to a node which needs data transmission and after the node receives the TDMA slot allocation result, conducting the data transmission in a corresponding slot. The present invention is proposed on the premise of fully taking into account the application characteristics of an industrial wireless network, and can reduce the network protocol overhead, and improve the bandwidth utilization rate and effective network throughput, thereby improving network timeliness and scale.
优先权数据cn20121171074
PCT属性
申请日期2013-01-10
2013-12-05
申请号WO2013CN70327
公开(公告)号WO2013177958A1
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/173321/14152
专题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,Lin JR,et al. OFDM TECHNOLOGY-BASED FREQUENCY DOMAIN POLLING METHOD FOR WIRELESS SENSOR NETWORK[P]. 2013-12-05.
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