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公开(公告)号：KR101359455B1
公开(公告)日：2014-02-11
申请号：KR1020110079568
申请日：2011-08-10
Applicant: 한국전자통신연구원
Abstract: 본 발명은 메시지 전송 주기 결정 방법이 개시된다. 이를 위한 메시지 전송 주기 결정 방법은, 이웃 노드의 전송 영역 내에 임의의 노드가 위치할 제1 확률을 결정하는 단계, 상기 임의의 노드가 상기 이웃 노드의 전송 영역을 벗어날 제2 확률을 결정하는 단계, 상기 제1 확률과 상기 제2 확률을 기반으로, 상기 임의의 노드의 전송 영역에 위치한 노드가 상기 임의의 노드의 전송 영역을 벗어날 제3 확률을 결정하는 단계 및 상기 제3 확률에 따라 상기 임의의 노드의 메시지 전송 주기를 결정하는 단계를 포함한다. 따라서, 네트워크 전체의 Hello 메시지 전송 주기를 변경하는 것이 아니라 각 노드의 Hello 메시지 전송 주기를 분산적으로 결정함으로써 노드의 이동성에 대해 적응적으로 Hello 메시지 전송 주기를 결정할 수 있고 네트워크 오버헤드의 증가를 최소화 하면서 이웃 노드탐색의 정확도를 향상시킬 수 있다.
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公开(公告)号：KR1020130119287A
公开(公告)日：2013-10-31
申请号：KR1020120042316
申请日：2012-04-23
Applicant: 한국전자통신연구원
CPC classification number: H04W84/18 , H04B7/14 , H04B7/15507
Abstract: PURPOSE: A relay node selecting method in a wireless ad-hoc network is provided to improve the whole performance of a network by reducing channel competition and collision probability. CONSTITUTION: A predetermined node renews a neighbor node list based on a message which is received from one or more the other nodes (S203). The predetermined node selects a 1 hop neighbor node having the most relay node selectors among one or more 1 hop neighbor nodes which are included in the renewed neighbor node list as a relay node (S209). The predetermined node receives a Hello message which respectively includes relay node selector number information from one or more the other node. The predetermined node renews the neighbor node list according to the relay node selector number included in the one or more Hello message. [Reference numerals] (AA) Start; (BB) Yes; (CC) No; (DD) End; (S201) Receive a Hello message including MSC information from neighboring nodes; (S203) Renew a list of the neighboring nodes regarding the MSC information; (S205) Align first hop neighboring nodes according to MSC values; (S207) Align the first hop neighboring nodes with the highest MSC values regarding the number of second hop neighboring nodes; (S209) Select the node with the highest MSC value and the largest number of the second hop neighboring nodes as a MPR node; (S211) Is at least one second hop neighboring node included ?; (S213) Remove information about the first and second hop neighboring nodes corresponding to a selected MPR on the list of the neighboring nodes
Abstract translation: 目的：提供无线自组织网络中的中继节点选择方法，通过减少信道竞争和冲突概率来提高网络的整体性能。 构成：预定节点基于从一个或多个其他节点接收到的消息来更新邻居节点列表（S203）。 预定节点选择作为中继节点包括在更新的邻居节点列表中的一个或多个1跳邻居节点中具有最多中继节点选择的1跳邻居节点（S209）。 预定节点从一个或多个其他节点接收分别包括中继节点选择者号码信息的Hello消息。 预定节点根据包含在一个或多个Hello消息中的中继节点选择器号更新邻居节点列表。 （附图标记）（AA）开始; （BB）是的; （CC）否; （DD）结束; （S201）从相邻节点接收包括MSC信息的Hello消息; （S203）更新关于MSC信息的相邻节点的列表; （S205）根据MSC值对齐第一跳邻居节点; （S207）将第一跳相邻节点与关于第二跳相邻节点的数量的最高MSC值对齐; （S209）选择具有最高MSC值和最大数量的第二跳相邻节点作为MPR节点的节点; （S211）是否包括至少一个第二跳相邻节点？ （S213）删除与相邻节点列表上的所选MPR相对应的第一跳和第二跳相邻节点的信息
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公开(公告)号：KR1020130017251A
公开(公告)日：2013-02-20
申请号：KR1020110079568
申请日：2011-08-10
Applicant: 한국전자통신연구원
Abstract: PURPOSE: A message transmission cycle determining method is provided to improve the accuracy of neighbor node search by exchanging a hello message through a hello message transmission cycle determining method. CONSTITUTION: A message transmission cycle determining device calculates a cross point between a first transmission range and a second transmission range(S201). The message transmission cycle determining device calculates an angle according to a moving speed of a first node and a distance between the first node and a second node using the calculated cross point(S202). The message transmission cycle determining device calculates probability related to the transmission range of the second node using the calculated angle(S203). The message transmission cycle determining device calculates a transmission cycle which the first node transmits the message to the second node(S204). [Reference numerals] (AA) Start; (BB) End; (S201) Calculating a cross point between a first transmission range and a second transmission range; (S202) Calculating an angle according to a moving speed of a first node and a distance between the first node and a second node; (S203) Calculating the escaping probability of the first node from the transmission range of the second node in a message transmission cycle; (S204) Calculating the message transmission cycle
Abstract translation: 目的：提供一种消息传输周期确定方法，通过一个hello消息传输周期确定方法交换一个hello消息来提高邻居节点搜索的准确性。 构成：消息发送周期确定装置计算第一发送范围和第二发送范围之间的交叉点（S201）。 消息传输周期确定装置使用所计算的交叉点，根据第一节点的移动速度和第一节点与第二节点之间的距离来计算角度（S202）。 消息发送周期确定装置使用计算出的角度来计算与第二节点的发送范围有关的概率（S203）。 消息发送周期确定装置计算第一节点向第二节点发送消息的发送周期（S204）。 （附图标记）（AA）开始; （BB）结束; （S201）计算第一传输范围和第二传输范围之间的交叉点; （S202）根据第一节点的移动速度和第一节点与第二节点之间的距离来计算角度; （S203）在消息发送周期中计算第一节点从第二节点的传输范围的逸出概率; （S204）计算消息发送周期
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