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公开(公告)号：KR100953565B1
公开(公告)日：2010-04-21
申请号：KR1020070105756
申请日：2007-10-19
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
CPC classification number: H04W74/0808 , H04W52/0225 , H04W84/18 , Y02D70/166
Abstract: Provided are a method and apparatus for controlling media access in a sensor network and a method of managing traffic information. Since traffic information is exchanged between nodes and data is transmitted by using a dynamic long preamble according to receiver nodes, data transmission efficiency can be improved, energy consumed to transmit the long preamble can be reduced, and data transmission delay can be reduced as well.
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2.发明授权
公开(公告)号：KR100927600B1
公开(公告)日：2009-11-23
申请号：KR1020070106213
申请日：2007-10-22
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
CPC classification number: H04W74/0808 , H04L7/041 , H04W52/0216 , H04W74/002 , Y02D70/166
Abstract: Provided is a method of transmitting/receiving data in a sensor node for reducing overhearing of sensor nodes, and a sensor network which implements the method. A sender node having transmission data from among a plurality of nodes which perform a low power listening (LPL) operation in an asynchronous manner at predetermined time intervals, generates a long preamble including short preambles, each having information including a destination address of the transmission data, a remainder of the long preamble, and a length of the transmission data, and sequentially transmits the second preamble and the transmission data. A receiver node from among the plurality of nodes determines whether a valid signal is sensed during an active state in the LPL operation. If it is determined that the valid signal is sensed, the receiver node receives the short preamble transmitted from the sender node. The receiver node determines a duration time of a deactivated state of the receiver node based on the received first preamble, thereby reducing overhearing in the sensor network.
Abstract translation: 提供一种在传感器节点中发送/接收数据以减少传感器节点的窃听的方法以及实现该方法的传感器网络。 具有来自以预定时间间隔以异步方式执行低功率侦听（LPL）操作的多个节点中的发送数据的发送器节点产生包括短前导码的长前导码，每个前导码具有包括发送数据的目的地地址的信息 ，长前导码的剩余部分和传输数据的长度，并且顺序地发送第二前导码和传输数据。 多个节点中的接收器节点确定在LPL操作中的活动状态期间是否感测到有效信号。 如果确定感测到有效信号，则接收器节点接收从发送器节点发送的短前导码。 接收器节点基于接收到的第一前导码来确定接收器节点的停用状态的持续时间，由此减少传感器网络中的窃听。
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公开(公告)号：KR1020090040726A
公开(公告)日：2009-04-27
申请号：KR1020070106213
申请日：2007-10-22
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
CPC classification number: H04W74/0808 , H04L7/041 , H04W52/0216 , H04W74/002 , Y02D70/166
Abstract: A method of transmitting/receiving data in a sensor network for reducing overhearing of sensor nodes is provided to minimize the power consumption of sensor nodes by minimizing the overhearing of the sensor nodes in a sensor network environment using an MAC(Media Access Control). A transmission node having transmission data generates a long preamble including at least short preamble for reducing the overhearing of other nodes(S510). The transmission node transmits the long preamble and the transmission data(S520). At least one first preamble includes the information as to the destination address of the transmission data, the residual amount of the second preamble at its time position and the length of the data to be transmitted.
Abstract translation: 提供了一种在传感器网络中发送/接收数据以减少传感器节点的窃听的方法，以通过使用MAC（媒体访问控制）使传感器网络环境中的传感器节点的监听最小化来最小化传感器节点的功耗。 具有发送数据的传输节点生成包括至少短前导码的长前导码，用于减少其他节点的监听（S510）。 发送节点发送长前导码和发送数据（S520）。 至少一个第一前同步码包括关于发送数据的目的地址，其时间位置的第二前导码的剩余量和要发送的数据的长度的信息。
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公开(公告)号：KR1020090040127A
公开(公告)日：2009-04-23
申请号：KR1020070105756
申请日：2007-10-19
Applicant: 한국전자통신연구원 , 한국항공대학교산학협력단
CPC classification number: H04W74/0808 , H04W52/0225 , H04W84/18 , Y02D70/166
Abstract: A media access control device of a medium access control method in a sensor network reducing delay generated between a hop and a sensor node are provided to process data quickly by using a check interval of short length. A first node performs an LPL(Low Power Listening) which is the check interval which is most short among the usable check interval(S510). A first node receiving the downward traffic information determines the check interval by summing the traffic volume which periodically reports to the sink node by summing upward traffic and downward traffic which receives from its own lower nodes(S525). The first node transmits the upward traffic binding update message by using the long preamble of the type '2 fitted to the check interval of the node having the most small traffic(S540).
Abstract translation: 提供传感器网络中的介质访问控制方法的媒体访问控制装置，减少在跳和传感器节点之间产生的延迟，以通过使用短长度的检查间隔来快速处理数据。 第一节点执行作为可用检查间隔中最短的检查间隔的LPL（低功率听力）（S510）。 接收下行业务信息的第一节点通过对通过向上流量求和并从其自己的下级节点接收的向下流量求和周期性地向汇聚节点报告的业务量来确定检查间隔（S525）。 第一节点通过使用适合于具有最小业务量的节点的检查间隔的类型“2”的长前导码来发送上行业务绑定更新消息（S540）。
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