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

Inventor： 김세한 ,  이계선 ,  윤종호 ,  변강호 ,  김내수 ,  표철식

IPC: H04L12/28 ,  H04L29/02

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。

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

Inventor： 김세한 ,  이계선 ,  윤종호 ,  변강호 ,  김내수 ,  표철식

IPC: H04L12/28 ,  H04L29/02

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。

公开(公告)号：KR100800822B1

公开(公告)日：2008-02-04

申请号：KR1020070000536

申请日：2007-01-03

Applicant: 삼성전자주식회사 ,  한국항공대학교산학협력단

Inventor： 조재헌 ,  황성택 ,  윤종호 ,  김훈

IPC: H04B7/26 ,  H04L12/28

CPC classification number: H04W36/0011 ,  H04W8/04 ,  H04W8/087 ,  H04W80/02 ,  H04L12/462

Abstract: A system of a bridge-based cellular Ethernet network and a handover processing method thereof are provided to reduce handoff delay of an MN(Mobile Node) up to a physical connection delay level, and to prevent lost frames during handover, thus efficient and fast handover can be carried out, consequently network efficiency is improved. An HLR(Home Location Register)(24) manages configuration information of network components. Plural BSBs(Base Station Bridges)(22) consist of 2-layer switches in connection with plural wireless base stations. Plural SCBs(Site Core Bridges)(23-1,23-4) are connected with a portion of the BSBs(22), deliver frames in MAC(Medium Access Control)-in-MAC manners, and transmit frames to an SCB of a site to which a destination MN belongs by confirming the destination MN whose communication is demanded by an MN within a self site through the HLR(24).

Abstract translation: 提供了一种基于桥接的蜂窝以太网网络及其切换处理方法，以减少MN（移动节点）切换到物理连接延迟级别的切换延迟，并防止切换期间丢失的帧，从而实现高效快速的切换 可以实现网络效率提高。 HLR（归属位置寄存器）（24）管理网络组件的配置信息。 多个BSB（基站桥）（22）由与多个无线基站连接的2层交换机组成。 多个SCB（站点核心桥）（23-1,23-4）与BSB（22）的一部分连接，以MAC（媒体访问控制）方式传送帧，并以帧方式传送帧到SCB 目的地MN所属的站点通过HLR（24）确认自身站点内的MN要求通信的目的地MN。