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公开(公告)号：KR1020080051035A
公开(公告)日：2008-06-10
申请号：KR1020070102763
申请日：2007-10-11
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
CPC classification number: H04W40/20 , H04L41/0833 , H04L45/122 , H04W74/0841 , H04W84/18 , Y02D70/00
Abstract: A position-based routing method by using a cell in a wireless sensor network is provided to minimize the energy and to determine a path until a destination node easily by reducing the periodical communication for the position information confirmation. In a next-hop position calculation process, the virtual ONI(Optimal Next-hop Information) among the paths until the destination node is calculated. In a communication area division process(302), the communication area is divided into fixed cell sizes by using the calculated virtual ONI position. In a packet broadcasting process(303), a packet including the virtual ONI position and the cell sizes is broadcasted to the surrounding node in the communication area. In a next-hop node decision process(305), the firstly transmitted surrounding node is determined as the next-hop node after receiving a response message in regard to the broadcasted packet from the surrounding node. In the next-hop position calculation process, the position joined by the virtual segment for connecting the distance until the destination node and a virtual circle corresponding to one's own communication area is calculated and the calculating result is determined as the next hop position.
Abstract translation: 提供了一种通过使用无线传感器网络中的小区的基于位置的路由方法来最小化能量并且通过减少用于位置信息确认的周期性通信来容易地确定目的地节点之间的路径。 在下一跳位置计算处理中，直到计算目的地节点为止的路径中的虚拟ONI（最佳下一跳信息）。 在通信区域划分处理（302）中，通过使用计算出的虚拟ONI位置将通信区域分割成固定小区大小。 在分组广播处理（303）中，将包含虚拟ONI位置和小区大小的分组广播到通信区域中的周边节点。 在下一跳节点决策处理（305）中，首先发送的周围节点在接收到来自周围节点的广播分组的响应消息后被确定为下一跳节点。 在下一跳位置计算处理中，计算通过用于连接目的地节点的距离的虚拟段和与自己的通信区域对应的虚拟圆所连接的位置，并将计算结果确定为下一跳位置。
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公开(公告)号：KR1020150016458A
公开(公告)日：2015-02-12
申请号：KR1020130092021
申请日：2013-08-02
Applicant: 연세대학교 산학협력단
CPC classification number: H04W52/0216 , H04W84/18 , Y02D70/162
Abstract: 싱크 노드와 복수의 센서 노드를 포함하는 센서 네트워크에서, 싱크 노드가 상기 센서 노드들로부터 라우팅 정보를 포함하는 라우팅 메시지를 수신하고, 라우팅 정보를 토대로 상기 센서 네트워크의 구조를 분석하고, 분석된 네트워크의 구조를 토대로 각 센서 노드에 대한 전송 스케줄을 계산한다. 계산된 전송 스케줄에 따른 스케줄 정보는 센서 노드의 웨이크업(wakeup) 시각, 패킷 송신에 소요되는 시간 간격, 상기 시간 간격을 토대로 한 패킷 충돌을 방지하기 위한 대기 시간을 포함한다.
Abstract translation: 本发明的目的是提供一种用于传输调度的方法和装置，其能够最小化在需要多跳中继传输的线性或树状结构节点的无线传感器网络中的传输延迟。 在包括汇聚节点和多个传感器节点的传感器网络中，汇聚节点接收包括来自传感器节点的路由信息的路由消息，基于路由信息分析传感器网络的结构，并计算每个传感器网络的传输时间表 的传感器节点基于分析的网络结构。 根据计算出的发送调度的调度信息包括每个传感器节点的唤醒时间，分组传输所消耗的时间间隔，以及基于时间间隔防止分组冲突的待机时间。
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公开(公告)号：KR100954380B1
公开(公告)日：2010-04-26
申请号：KR1020070102763
申请日：2007-10-11
Applicant: 한국전자통신연구원 , 연세대학교 산학협력단
Abstract: A position-based routing method by using a cell in a wireless sensor network is provided to minimize the energy and to determine a path until a destination node easily by reducing the periodical communication for the position information confirmation. In a next-hop position calculation process, the virtual ONI(Optimal Next-hop Information) among the paths until the destination node is calculated. In a communication area division process(302), the communication area is divided into fixed cell sizes by using the calculated virtual ONI position. In a packet broadcasting process(303), a packet including the virtual ONI position and the cell sizes is broadcasted to the surrounding node in the communication area. In a next-hop node decision process(305), the firstly transmitted surrounding node is determined as the next-hop node after receiving a response message in regard to the broadcasted packet from the surrounding node. In the next-hop position calculation process, the position joined by the virtual segment for connecting the distance until the destination node and a virtual circle corresponding to one's own communication area is calculated and the calculating result is determined as the next hop position.
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