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    • 1. 发明公开
    • 무선 메쉬 네트워크에서 통신 방법 및 이를 지원하는 장치
    • 无线网状网络通信方法及其设备
    • KR1020120115619A
    • 2012-10-19
    • KR1020110033029
    • 2011-04-11
    • 한국전자통신연구원연세대학교 산학협력단
    • 김현재임광재정종문이대영박종홍
    • H04W40/12H04W84/18H04J11/00
    • H04W40/12H04W40/38H04W84/18
    • PURPOSE: A communication method in a wireless mesh network and an apparatus supporting the same are provided to increase the performance of a capacitor and improve a BER(bit error rate) of a link by minimizing MUI(multi-user interference) of a wireless mesh network based on OFDMA(orthogonal frequency-division multiple access). CONSTITUTION: The number of the other nodes is obtained(S750). A cost parameter is obtained based on BER, a capacitor, and the number of nodes(S760). A weight factor is applied to the cost parameter. The weighted link cost parameter is obtained(S770). A routing path is set up based on the minimum cost routing algorithm(S790). [Reference numerals] (S710) Measuring d_ij between nodes; (S730) SINR calculation on a receipt terminal; (S740) Link BER calculation; (S750) Measuring the number of neighboring node; (S760) Obtaining a cost parameter; (S770) Calculating weighted link cost; (S780) Determining cost between nodes?; (S790) Setting up an optimum routing path by using a Minimum cost routing algorithm
    • 目的:提供无线网状网络中的通信方法和支持该无线网状网络的装置,以通过最小化无线网格的MUI(多用户干扰)来提高电容器的性能并提高链路的BER(误码率) 基于OFDMA(正交频分多址)网络。 构成:获得其他节点的数量(S750)。 基于BER,电容器和节点数获得成本参数(S760)。 对成本参数应用权重因子。 获得加权链路成本参数(S770)。 基于最小成本路由算法建立路由路径(S790)。 (参考号)(S710)在节点之间测量d_ij; (S730)收据终端的SINR计算; (S740)链路BER计算; (S750)测量相邻节点的数量; (S760)获取成本参数; (S770)计算加权链路成本; (S780)确定节点之间的成本? (S790)使用最低成本路由算法设置最优路由路径
    • 3. 发明公开
    • IP 기반 센서 네트워크 시스템에서 센서 노드의 이동성을지원하기 위한 장치 및 방법
    • 用于支持基于IP传感器网络的传感器节点移动性的装置和方法
    • KR1020090011583A
    • 2009-02-02
    • KR1020070075294
    • 2007-07-26
    • 한국전자통신연구원
    • 신명기김형준
    • H04L12/46H04L12/28H04B7/26
    • H04W8/02H04W40/32H04W40/38H04W52/0219H04W80/04H04W84/10Y02D70/22
    • An apparatus for supporting the mobility of a sensor node in an IP-based sensor network system and a method thereof are provided to support the mobility of the sensor node between PANs(Personal Area Networks) without battery power consumption due to additional software upgrading or excessive signaling. A personal area network(PAN-B)(10) senses a sensor node(A1) moved into a region, and transmits a proxy binding update signal. A local mobility anchor(LMA-A)(20) modifies the binding cache information of the moved sensor node according to the proxy binding update signal. The personal area network comprises the sensor node and a coordinator node(CFD-B). The sensor node transmits a registration signal to the coordinator node managing the personal area network. The coordinator node senses the moved sensor node by the registration signal, generates the proxy binding update signal, and then transmits the generated proxy binding update signal to the local mobility anchor.
    • 提供了一种用于支持基于IP的传感器网络系统中的传感器节点的移动性的装置及其方法,其用于在PAN(个人区域网络)之间支持传感器节点的移动性,而不会由于额外的软件升级或过度的电池功率消耗 信号。 个人区域网络(PAN-B)(10)感测移动到区域中的传感器节点(A1),并发送代理绑定更新信号。 本地移动锚(LMA-A)(20)根据代理绑定更新信号修改移动的传感器节点的绑定缓存信息。 个人区域网络包括传感器节点和协调器节点(CFD-B)。 传感器节点向管理个人区域网络的协调器节点发送注册信号。 协调器节点通过注册信号感测移动的传感器节点,生成代理绑定更新信号,然后将生成的代理绑定更新信号发送到本地移动锚点。
    • 10. 发明授权
    • 무선 네트워크상의 애드혹 온-디맨드 거리벡터 라우팅을위한 라우팅 메트릭 방법
    • 无线网络上广泛需求距离矢量路由的路由方法
    • KR100754279B1
    • 2007-09-03
    • KR1020060026583
    • 2006-03-23
    • 아주대학교산학협력단
    • 김기형임채성
    • H04L12/28
    • H04W40/38H04L45/122H04W40/248
    • A routing metric method for AODV(Ad hoc On demand Distance Vector) routing over a wireless network is provided to prevent usage of a path whose packet loss rate is estimated to get lower by removing paths with links having LQI(Link Quality Indicator) under a reference which can have bad influence on packet delivery. A routing metric method for AODV(Ad hoc On demand Distance Vector) routing over a wireless network comprises the following several steps. A transmission node broadcasts an RREQ(Routing Request) packet to neighboring nodes in order to find a destination node for transmitting data, and the neighboring node receives the RREQ packet(S20). The neighboring node checks whether the node itself is a destination node(S21). If so in the step S21, the neighboring node checks whether the hop count of the path along which the RREQ packet has passed is longer than a twice of the hop count of an existing selected path(S22). If so in the step S22, the neighboring node compares a hop count of the existing selected path with that of a newly arrived RREQ path(S27). If the hop count of the newly arrived RREQ path is shorter than that of the existing selected path, the neighboring node transmits a response message to the RREQ(S30), and otherwise wastes the RREQ(S31). If not so in the S22, the neighboring node checks whether the number of LQI links under a reference in the new RREQ path is equal to that in the existing RREQ path(S28). If so in the step S28, the neighboring node compares the hop count of the existing selected path with that of the newly arrived RREQ path(S27). If not so in the step S28, the neighboring node compares the number of LQI links under a reference in the RREQ path with that in the existing selected path(S29). If the number of the LQI links under a reference in the RREQ path is more than that in the existing selected path, the neighboring node wastes the RREQ(S31), and otherwise transmits a response message to the RREQ(S30).
    • 提供了一种通过无线网络进行AODV(Ad hoc On Demand Distance Vector)路由的路由度量方法,以防止通过删除具有LQI(链路质量指示符)下的链路的路径来估计丢包率降低的路径的使用 可能对包传送有不良影响的参考。 通过无线网络的AODV(Ad hoc On Demand Distance Vector)路由的路由度量方法包括以下几个步骤。 传输节点向相邻节点广播RREQ(路由请求)分组,以便找到用于发送数据的目的地节点,并且相邻节点接收RREQ分组(S20)。 相邻节点检查节点本身是否是目的地节点(S21)。 如果在步骤S21中,则相邻节点检查RREQ分组已经通过的路径的跳数是否比现有选择路径的跳数的两倍长(S22)。 如果在步骤S22中,则相邻节点将现有选择路径的跳数与新到达的RREQ路径的跳数进行比较(S27)。 如果新到达的RREQ路径的跳数比现有选路径的跳数少,则相邻节点向RREQ发送响应消息(S30),否则浪费RREQ(S31)。 如果在S22中不是这样,则相邻节点检查新RREQ路径中的引用下的LQI链路的数量是否等于现有RREQ路径中的LQI链路的数量(S28)。 如果在步骤S28中,相邻节点将现有选择的路径的跳数与新到达的RREQ路径的跳数进行比较(S27)。 如果在步骤S28中不是这样,则相邻节点将RREQ路径中的参考下的LQI链路的数量与现有选择的路径中的LQI链路的数量进行比较(S29)。 如果在RREQ路径中的参考下的LQI链路的数量大于现有选择路径中的LQI链路的数量,则相邻节点浪费RREQ(S31),否则将响应消息发送到RREQ(S30)。