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公开(公告)号:KR1020130125050A
公开(公告)日:2013-11-18
申请号:KR1020120048476
申请日:2012-05-08
Applicant: 광주과학기술원
CPC classification number: H04B7/2612 , H04L5/14 , H04W84/12 , H04W88/08
Abstract: In the medium access control method of an access point for a wireless LAN according to the present invention, the access point can perform communications in a full-duplex communication mode. The medium access control method includes the following steps: a step of receiving the frame header of a first data frame from a first terminal; and a step of transmitting a second data frame to a second terminal while receiving the first data frame from the first terminal.
Abstract translation: 在根据本发明的用于无线LAN的接入点的介质访问控制方法中,接入点可以以全双工通信模式进行通信。 介质访问控制方法包括以下步骤:从第一终端接收第一数据帧的帧头部的步骤; 以及在从第一终端接收第一数据帧的同时将第二数据帧发送到第二终端的步骤。
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公开(公告)号:KR101306210B1
公开(公告)日:2013-09-09
申请号:KR1020120048461
申请日:2012-05-08
Applicant: 광주과학기술원
IPC: H04W74/08
CPC classification number: H04W74/08 , H04W74/002
Abstract: PURPOSE: A medium access control (MAC) method in a single channel wireless network environment is provided to maximize the efficiency of full-duplex communication method in the single channel wireless network environment. CONSTITUTION: A terminal performing communication with full-duplex communication receives a frame header of data frame (420). The terminal transmits an acknowledgement (ACK) frame in response to the frame header (440). The terminal transmits the ACK frame while receiving the data frame. A network allocation vector (NAV) is included in the ACK frame. The terminal receives the data frame when if a destination of the frame header is terminal itself. [Reference numerals] (410) Wait receiving; (415) Is signal received?; (420) Receive frame header; (425) Is frame header received ?; (430) Is this data transmitting to itself ?; (435,440) Transmit ACK; (445) Receive data frame; (450) Is data frame received?; (455) Transmit NACK; (AA) Start; (BB,DD,FF,HH) No; (CC,EE,GG,II) Yes; (JJ) End
Abstract translation: 目的:提供单通道无线网络环境中的媒体访问控制(MAC)方法,以最大限度地提高单通道无线网络环境下全双工通信方式的效率。 构成:执行全双工通信的终端接收数据帧的帧头(420)。 终端响应于帧头(440)发送确认(ACK)帧。 终端在接收数据帧时发送ACK帧。 网络分配向量(NAV)包含在ACK帧中。 当帧头的目的地为终端本身时,终端接收数据帧。 (附图标记)(410)等待接收; (415)是否收到信号? (420)接收帧头; (425)是否收到帧头? (430)这个数据是否传输到自身? (435,440)发送ACK; (445)接收数据帧; (450)是否收到数据帧? (455)发送NACK; (AA)开始; (BB,DD,FF,HH)否; (CC,EE,GG,II)是的; (JJ)结束
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公开(公告)号:KR1020110138139A
公开(公告)日:2011-12-26
申请号:KR1020100126637
申请日:2010-12-13
Applicant: 광주과학기술원
IPC: H04L12/28
CPC classification number: H04L45/24 , H03M13/3761
Abstract: PURPOSE: A multiple route transmission in a multi-homing network, reception method, transmission terminal, and reception terminal are provided to perform multi-route transmission using a fountain code. CONSTITUTION: Two or more network interfaces(150, 160) are connected to separate two network routes. An encoder(130) encodes the successive data of an application layer using a fountain code. The fountain code is developed in order to display an eraser channel on a network. A transmission unit(140) transmits a packet which is encoded by the fountain code through two or more network interfaces.
Abstract translation: 目的:提供多归属网络,接收方式,发送终端和接收终端中的多路径传输,以使用喷泉代码执行多路径传输。 规定:两个或多个网络接口(150,160)被连接以分离两个网络路由。 编码器(130)使用喷泉码对应用层的连续数据进行编码。 为了在网络上显示橡皮通道,开发了喷泉代码。 发送单元(140)通过两个以上的网络接口发送由喷泉代码编码的分组。
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公开(公告)号:KR1020100038687A
公开(公告)日:2010-04-15
申请号:KR1020080097745
申请日:2008-10-06
Applicant: 광주과학기술원
IPC: H04L12/28
CPC classification number: H04W28/0289 , H04L47/12 , H04W24/02
Abstract: PURPOSE: A congestion control method in a multi hop wireless network and a device for the same are provided to supply many channel access opportunities in order to enable a node in which congestion occurs to process many packets. CONSTITUTION: Queue length information is received from at least one neighbor node adjacent to a congestion control target node(S110). The queue length information shows the amount of data in a queue. Using the received queue length information, the congestion of the congestion control target node is determined(S120). According to the determination of congestion, the congestion of the congestion control target node is controlled.
Abstract translation: 目的:提供多跳无线网络中的拥塞控制方法及其设备,以提供许多信道接入机会,以便能够使发生拥塞的节点处理许多分组。 构成:从与拥塞控制目标节点相邻的至少一个邻居节点接收队列长度信息(S110)。 队列长度信息显示队列中的数据量。 使用接收的队列长度信息,确定拥塞控制目标节点的拥塞(S120)。 根据拥塞的确定,控制拥塞控制对象节点的拥塞。
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公开(公告)号:KR1020090060931A
公开(公告)日:2009-06-15
申请号:KR1020080066726
申请日:2008-07-09
IPC: H04L12/28
Abstract: A cross layer based routing method in a wireless sensor network is provided to supply an algorithm which provides optimal and stable routing in an instable communication environment, thereby improving the entire network performance. A source node generating data grasps a location of a destination node(S310). An optimum relay node is selected by using location information of adjacent nodes at every hop so that data is transmitted from the source node to the destination node through relay nodes(S330). The data includes an identification number and coordinate of the source node, an identification number and coordinate of the source node, an identification number and coordinate of a target node, and a message identification number of the data.
Abstract translation: 提供了一种在无线传感器网络中的基于交叉层的路由方法来提供在不稳定的通信环境中提供最佳和稳定的路由的算法,从而提高整个网络性能。 产生数据的源节点掌握目的地节点的位置(S310)。 通过使用每跳的相邻节点的位置信息来选择最佳中继节点,从而通过中继节点从源节点向目的地节点发送数据(S330)。 数据包括源节点的标识号和坐标,源节点的标识号和坐标,目标节点的标识号和坐标,以及数据的消息标识号。
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公开(公告)号:KR100859093B1
公开(公告)日:2008-09-17
申请号:KR1020070041979
申请日:2007-04-30
Applicant: 광주과학기술원
IPC: G08G1/0968 , G01C21/36 , G08G1/04 , G01C21/30
CPC classification number: G01C21/20 , G01S13/82 , G01S13/931 , G01S2013/9339
Abstract: A navigation apparatus and a navigation method using an RFID scheme are provided to recognize precisely a current position and a progress direction by utilizing position and wireless signal information of an RFID tag using a directional antenna. A navigation apparatus using an RFID scheme includes an antenna(110), an RFID(Radio Frequency IDentification) reader(120), and a controller(130). The antenna unit having directional antenna which has different directivity receives at least one wireless signal from at least one RFID tag. The RFID reader converts the wireless signal into digital RFID tag information, measures received strength of the wireless signal, and provides the converted RFID tag and received strength information. The controller determines current position based on the received strength information, compares the RFID tag information from the RFID reader with RFID tag lists which are installed at heading direction, reads RFID tag information based on the comparison, and determines a heading direction based on the read RFID tag information.
Abstract translation: 提供使用RFID方案的导航装置和导航方法,以通过使用定向天线利用RFID标签的位置和无线信号信息来精确地识别当前位置和进度方向。 使用RFID方案的导航装置包括天线(110),RFID(射频识别)读取器(120)和控制器(130)。 具有不同方向性的定向天线的天线单元从至少一个RFID标签接收至少一个无线信号。 RFID读取器将无线信号转换成数字RFID标签信息,测量无线信号的接收强度,并提供转换的RFID标签和接收的强度信息。 控制器基于接收的强度信息确定当前位置,将来自RFID读取器的RFID标签信息与在航向方向上安装的RFID标签列表进行比较,基于比较读取RFID标签信息,并且基于读取确定标题方向 RFID标签信息。
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公开(公告)号:KR102209022B1
公开(公告)日:2021-01-28
申请号:KR1020190141753
申请日:2019-11-07
Applicant: 광주과학기술원
IPC: H04L12/815 , H04L12/26
Abstract: 본발명에따른무선소프트웨어정의네트워크의제어평면보호방법에는, 무선인밴드에스디엔에놓이는링크의드랍률정보를수집하는것; 수집된정보중에서제어평면패킷드랍률을평가하여, 어느링크의상기제어평면패킷드랍률이높으면, 상기어느링크와관련되는노드의데이터평면트래픽을감소시키고, 어느링크의상기제어평면패킷드랍률이낮으면, 상기어느링크와관련되는노드의데이트평면트래픽을증가시키는것이포함된다.
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公开(公告)号:KR102076626B1
公开(公告)日:2020-05-18
申请号:KR1020180081172
申请日:2018-07-12
Applicant: 광주과학기술원
Inventor: 자르갈사이흥나랑토야 , 임혁
IPC: G06F9/455
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公开(公告)号:KR101959055B1
公开(公告)日:2019-07-04
申请号:KR1020170128518
申请日:2017-10-02
Applicant: 광주과학기술원
Inventor: 임혁 , 자르갈사이흥나랑토야 , 장한이
IPC: G06F9/455
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公开(公告)号:KR1020160112762A
公开(公告)日:2016-09-28
申请号:KR1020150039033
申请日:2015-03-20
Applicant: 광주과학기술원
Abstract: 본발명의실시예는스몰셀로이루어진무선네트워크환경에서통신을수행하기위한기지국을선택하는방법으로서, 사용자의단말기와통신가능한기지국들에대한사용성(utilization)을평가하는단계, 상기기지국들중에서상기사용성이가장낮게나타나는기지국들을선택하는단계, 사용자의단말기와통신이수행될수 있는신호대잡음비(SINR)를고려하여, 상기 SINR을만족하도록기지국을추가적으로선택하는단계및 상기기지국들의공동전송을통해사용자의단말기와의협력통신을수행하는단계를포함한다. 따라서, 사용자및 네트워크가밀집되어있는환경에서상대적으로처리량이낮은기지국을우선적으로사용자가선택하도록함으로써, 일시적으로사용자가밀집하는상황, 혹은높은사용자의서비스요구량이존재하는상황에서도안정적으로네트워크에접속할수 있고네트워크의성능을일정수준으로유지할수 있다.
Abstract translation: 本发明涉及一种冷却和防潮配电箱(100)。 根据本发明的冷却和防潮配电箱(100)包括:用于容纳控制单元的盒式主体(110); 以及安装在所述主体(110)的外侧的冷却防潮单元(120),用于为所述主体(110)的内部提供冷空气和暖空气,其中所述冷却防潮单元(120)可以提供 冷空气和暖空气通过热电元件(127)。 因此,由于当从主体(110)内部的分配板产生的热量大于或等于所述温度时,主体(110)被冷却,因此提高了效率并提高了输出电压的精度,并且 连接到配电板的电缆端子的接触单元通过大于或等于所述温度的热量熔化和分离,从而防止发生电源断开现象。 此外,由于冬季在主体(110)内发生结露,所以随着时间的推移,露水凝结成水滴,水滴落在配电板上,防止发生短路。
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